---
_id: '61922'
abstract:
- lang: eng
  text: "We present an extremely simple polynomial-space exponential-time\r\n$(1-\\varepsilon)$-approximation
    algorithm for MAX-k-SAT that is (slightly)\r\nfaster than the previous known polynomial-space
    $(1-\\varepsilon)$-approximation\r\nalgorithms by Hirsch (Discrete Applied Mathematics,
    2003) and Escoffier,\r\nPaschos and Tourniaire (Theoretical Computer Science,
    2014). Our algorithm\r\nrepeatedly samples an assignment uniformly at random until
    finding an\r\nassignment that satisfies a large enough fraction of clauses. Surprisingly,
    we\r\ncan show the efficiency of this simpler approach by proving that in any\r\ninstance
    of MAX-k-SAT (or more generally any instance of MAXCSP), an\r\nexponential number
    of assignments satisfy a fraction of clauses close to the\r\noptimal value."
author:
- first_name: Harry
  full_name: Buhrman, Harry
  last_name: Buhrman
- first_name: Sevag
  full_name: Gharibian, Sevag
  id: '71541'
  last_name: Gharibian
  orcid: 0000-0002-9992-3379
- first_name: Zeph
  full_name: Landau, Zeph
  last_name: Landau
- first_name: François Le
  full_name: Gall, François Le
  last_name: Gall
- first_name: Norbert
  full_name: Schuch, Norbert
  last_name: Schuch
- first_name: Suguru
  full_name: Tamaki, Suguru
  last_name: Tamaki
citation:
  ama: 'Buhrman H, Gharibian S, Landau Z, Gall FL, Schuch N, Tamaki S. A Simpler Exponential-Time
    Approximation Algorithm for MAX-k-SAT. In: <i>SIAM Symposium on Simplicity in
    Algorithms (SOSA)</i>. ; :247-253.'
  apa: Buhrman, H., Gharibian, S., Landau, Z., Gall, F. L., Schuch, N., &#38; Tamaki,
    S. (n.d.). A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT. <i>SIAM
    Symposium on Simplicity in Algorithms (SOSA)</i>, 247–253.
  bibtex: '@inproceedings{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki, title={A Simpler
    Exponential-Time Approximation Algorithm for MAX-k-SAT}, booktitle={SIAM Symposium
    on Simplicity in Algorithms (SOSA)}, author={Buhrman, Harry and Gharibian, Sevag
    and Landau, Zeph and Gall, François Le and Schuch, Norbert and Tamaki, Suguru},
    pages={247–253} }'
  chicago: Buhrman, Harry, Sevag Gharibian, Zeph Landau, François Le Gall, Norbert
    Schuch, and Suguru Tamaki. “A Simpler Exponential-Time Approximation Algorithm
    for MAX-k-SAT.” In <i>SIAM Symposium on Simplicity in Algorithms (SOSA)</i>, 247–53,
    n.d.
  ieee: H. Buhrman, S. Gharibian, Z. Landau, F. L. Gall, N. Schuch, and S. Tamaki,
    “A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT,” in <i>SIAM
    Symposium on Simplicity in Algorithms (SOSA)</i>, pp. 247–253.
  mla: Buhrman, Harry, et al. “A Simpler Exponential-Time Approximation Algorithm
    for MAX-k-SAT.” <i>SIAM Symposium on Simplicity in Algorithms (SOSA)</i>, pp.
    247–53.
  short: 'H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, in:
    SIAM Symposium on Simplicity in Algorithms (SOSA), n.d., pp. 247–253.'
date_created: 2025-10-22T09:33:22Z
date_updated: 2026-04-20T13:53:03Z
department:
- _id: '7'
- _id: '623'
external_id:
  arxiv:
  - '2510.18164'
language:
- iso: eng
page: 247-253
publication: SIAM Symposium on Simplicity in Algorithms (SOSA)
publication_status: inpress
status: public
title: A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT
type: conference
user_id: '71541'
year: '2026'
...
---
_id: '64797'
alternative_title:
- Editorial
citation:
  ama: Birk L, Loth G, Jotzo L, Binder K, Frischemeier D, eds. <i>14th IASE Satellite
    Conference “Statistics and Data Science Education in STEAM.”</i> International
    Association for Statistics Education; 2026. doi:<a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>
  apa: Birk, L., Loth, G., Jotzo, L., Binder, K., &#38; Frischemeier, D. (Eds.). (2026).
    <i>14th IASE Satellite Conference “Statistics and Data Science Education in STEAM.”</i>
    International Association for Statistics Education. <a href="https://doi.org/10.52041/iase25.158">https://doi.org/10.52041/iase25.158</a>
  bibtex: '@book{Birk_Loth_Jotzo_Binder_Frischemeier_2026, title={14th IASE Satellite
    Conference “Statistics and Data Science Education in STEAM”}, DOI={<a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>},
    publisher={International Association for Statistics Education}, year={2026} }'
  chicago: Birk, Lisa, Gerrit Loth, Luca Jotzo, Karin Binder, and Daniel Frischemeier,
    eds. <i>14th IASE Satellite Conference “Statistics and Data Science Education
    in STEAM.”</i> International Association for Statistics Education, 2026. <a href="https://doi.org/10.52041/iase25.158">https://doi.org/10.52041/iase25.158</a>.
  ieee: L. Birk, G. Loth, L. Jotzo, K. Binder, and D. Frischemeier, Eds., <i>14th
    IASE Satellite Conference “Statistics and Data Science Education in STEAM.”</i>
    International Association for Statistics Education, 2026.
  mla: Birk, Lisa, et al., editors. <i>14th IASE Satellite Conference “Statistics
    and Data Science Education in STEAM.”</i> International Association for Statistics
    Education, 2026, doi:<a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>.
  short: L. Birk, G. Loth, L. Jotzo, K. Binder, D. Frischemeier, eds., 14th IASE Satellite
    Conference “Statistics and Data Science Education in STEAM,” International Association
    for Statistics Education, 2026.
conference:
  end_date: 2025-10-02
  location: Münster
  name: 14th IASE Satellite Conference "Statistics and Data Science Education in STEAM"
  start_date: 2025-09-30
date_created: 2026-03-01T13:18:24Z
date_updated: 2026-04-20T16:19:18Z
ddc:
- '370'
department:
- _id: '979'
doi: 10.52041/iase25.158
editor:
- first_name: Lisa
  full_name: Birk, Lisa
  last_name: Birk
- first_name: Gerrit
  full_name: Loth, Gerrit
  last_name: Loth
- first_name: Luca
  full_name: Jotzo, Luca
  id: '88811'
  last_name: Jotzo
  orcid: 0009-0003-1440-6466
- first_name: Karin
  full_name: Binder, Karin
  id: '83381'
  last_name: Binder
- first_name: Daniel
  full_name: Frischemeier, Daniel
  last_name: Frischemeier
file:
- access_level: closed
  content_type: application/pdf
  creator: binder
  date_created: 2026-04-20T16:18:30Z
  date_updated: 2026-04-20T16:18:30Z
  file_id: '65467'
  file_name: Birk, Loth, Jotzo, Binder, Frischemeier 2025 IASE Satellite Editorial.pdf
  file_size: 1447145
  relation: main_file
  success: 1
file_date_updated: 2026-04-20T16:18:30Z
has_accepted_license: '1'
language:
- iso: eng
publication_status: published
publisher: International Association for Statistics Education
status: public
title: 14th IASE Satellite Conference "Statistics and Data Science Education in STEAM"
type: conference_editor
user_id: '83381'
year: '2026'
...
---
_id: '63918'
abstract:
- lang: eng
  text: Many real-world datasets, such as citation networks, social networks, and
    molecular structures, are naturally represented as heterogeneous graphs, where
    nodes belong to different types and have additional features. For example, in
    a citation network, nodes representing "Paper" or "Author" may include attributes
    like keywords or affiliations. A critical machine learning task on these graphs
    is node classification, which is useful for applications such as fake news detection,
    corporate risk assessment, and molecular property prediction. Although Heterogeneous
    Graph Neural Networks (HGNNs) perform well in these contexts, their predictions
    remain opaque. Existing post-hoc explanation methods lack support for actual node
    features beyond one-hot encoding of node type and often fail to generate realistic,
    faithful explanations. To address these gaps, we propose DiGNNExplainer, a model-level
    explanation approach that synthesizes heterogeneous graphs with realistic node
    features via discrete denoising diffusion. In particular, we generate realistic
    discrete features (e.g., bag-of-words features) using diffusion models within
    a discrete space, whereas previous approaches are limited to continuous spaces.
    We evaluate our approach on multiple datasets and show that DiGNNExplainer produces
    explanations that are realistic and faithful to the model's decision-making, outperforming
    state-of-the-art methods.
author:
- first_name: Pallabee
  full_name: Das, Pallabee
  last_name: Das
- first_name: Stefan
  full_name: Heindorf, Stefan
  id: '11871'
  last_name: Heindorf
  orcid: 0000-0002-4525-6865
citation:
  ama: 'Das P, Heindorf S. Discrete Diffusion-Based Model-Level Explanation of Heterogeneous
    GNNs with Node Features. In: <i>Proceedings of the ACM Web Conference 2026 (WWW
    ’26)</i>. ACM; 2026.'
  apa: Das, P., &#38; Heindorf, S. (2026). Discrete Diffusion-Based Model-Level Explanation
    of Heterogeneous GNNs with Node Features. <i>Proceedings of the ACM Web Conference
    2026 (WWW ’26)</i>. The Web Conference, Dubai, United Arab Emirates.
  bibtex: '@inproceedings{Das_Heindorf_2026, title={Discrete Diffusion-Based Model-Level
    Explanation of Heterogeneous GNNs with Node Features}, booktitle={Proceedings
    of the ACM Web Conference 2026 (WWW ’26)}, publisher={ACM}, author={Das, Pallabee
    and Heindorf, Stefan}, year={2026} }'
  chicago: Das, Pallabee, and Stefan Heindorf. “Discrete Diffusion-Based Model-Level
    Explanation of Heterogeneous GNNs with Node Features.” In <i>Proceedings of the
    ACM Web Conference 2026 (WWW ’26)</i>. ACM, 2026.
  ieee: P. Das and S. Heindorf, “Discrete Diffusion-Based Model-Level Explanation
    of Heterogeneous GNNs with Node Features,” presented at the The Web Conference,
    Dubai, United Arab Emirates, 2026.
  mla: Das, Pallabee, and Stefan Heindorf. “Discrete Diffusion-Based Model-Level Explanation
    of Heterogeneous GNNs with Node Features.” <i>Proceedings of the ACM Web Conference
    2026 (WWW ’26)</i>, ACM, 2026.
  short: 'P. Das, S. Heindorf, in: Proceedings of the ACM Web Conference 2026 (WWW
    ’26), ACM, 2026.'
conference:
  end_date: 2026-04-17
  location: Dubai, United Arab Emirates
  name: The Web Conference
  start_date: 2026-04-13
date_created: 2026-02-06T18:44:34Z
date_updated: 2026-04-23T08:34:44Z
department:
- _id: '760'
external_id:
  arxiv:
  - '2508.08458'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://dl.acm.org/doi/epdf/10.1145/3774904.3792518
oa: '1'
publication: Proceedings of the ACM Web Conference 2026 (WWW ’26)
publisher: ACM
status: public
title: Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with
  Node Features
type: conference
user_id: '11871'
year: '2026'
...
---
_id: '65489'
author:
- first_name: Cem
  full_name: Okulmus, Cem
  id: '114410'
  last_name: Okulmus
  orcid: 0000-0002-7742-0439
- first_name: Shqiponja
  full_name: Ahmetaj, Shqiponja
  last_name: Ahmetaj
- first_name: 'Iovka '
  full_name: 'Boneva, Iovka '
  last_name: Boneva
- first_name: Jan
  full_name: Hidders, Jan
  last_name: Hidders
- first_name: 'Maxime '
  full_name: 'Jakubowski, Maxime '
  last_name: Jakubowski
- first_name: José Emilio
  full_name: ' Labra Gayo, José Emilio'
  last_name: ' Labra Gayo'
- first_name: Wim
  full_name: Martens, Wim
  last_name: Martens
- first_name: 'Fabio '
  full_name: 'Mogavero, Fabio '
  last_name: Mogavero
- first_name: 'Filip '
  full_name: 'Murlak, Filip '
  last_name: Murlak
- first_name: ' Ognjen '
  full_name: 'Savković,  Ognjen '
  last_name: Savković
- first_name: 'Mantas '
  full_name: 'Šimkus, Mantas '
  last_name: Šimkus
- first_name: 'Dominik '
  full_name: 'Tomaszuk, Dominik '
  last_name: Tomaszuk
citation:
  ama: 'Okulmus C, Ahmetaj S, Boneva I, et al. Common Foundations for Recursive Shape
    Languages. In: <i>Proceedings of the 23rd International Conference on Principles
    of Knowledge Representation and Reasoning (KR 2026)</i>. ; 2026.'
  apa: Okulmus, C., Ahmetaj, S., Boneva, I., Hidders, J., Jakubowski, M.,  Labra Gayo,
    J. E., Martens, W., Mogavero, F., Murlak, F., Savković,  Ognjen , Šimkus, M.,
    &#38; Tomaszuk, D. (2026). Common Foundations for Recursive Shape Languages. <i>Proceedings
    of the 23rd International Conference on Principles of Knowledge Representation
    and Reasoning (KR 2026)</i>. 23rd International Conference on Principles of Knowledge
    Representation and Reasoning (KR 2026), Lisbon, Portugal.
  bibtex: '@inproceedings{Okulmus_Ahmetaj_Boneva_Hidders_Jakubowski_ Labra Gayo_Martens_Mogavero_Murlak_Savković_et
    al._2026, title={Common Foundations for Recursive Shape Languages}, booktitle={Proceedings
    of the 23rd International Conference on Principles of Knowledge Representation
    and Reasoning (KR 2026)}, author={Okulmus, Cem and Ahmetaj, Shqiponja and Boneva,
    Iovka  and Hidders, Jan and Jakubowski, Maxime  and  Labra Gayo, José Emilio and
    Martens, Wim and Mogavero, Fabio  and Murlak, Filip  and Savković,  Ognjen  and
    et al.}, year={2026} }'
  chicago: Okulmus, Cem, Shqiponja Ahmetaj, Iovka  Boneva, Jan Hidders, Maxime  Jakubowski,
    José Emilio  Labra Gayo, Wim Martens, et al. “Common Foundations for Recursive
    Shape Languages.” In <i>Proceedings of the 23rd International Conference on Principles
    of Knowledge Representation and Reasoning (KR 2026)</i>, 2026.
  ieee: C. Okulmus <i>et al.</i>, “Common Foundations for Recursive Shape Languages,”
    presented at the 23rd International Conference on Principles of Knowledge Representation
    and Reasoning (KR 2026), Lisbon, Portugal, 2026.
  mla: Okulmus, Cem, et al. “Common Foundations for Recursive Shape Languages.” <i>Proceedings
    of the 23rd International Conference on Principles of Knowledge Representation
    and Reasoning (KR 2026)</i>, 2026.
  short: 'C. Okulmus, S. Ahmetaj, I. Boneva, J. Hidders, M. Jakubowski, J.E.  Labra
    Gayo, W. Martens, F. Mogavero, F. Murlak,  Ognjen  Savković, M. Šimkus, D. Tomaszuk,
    in: Proceedings of the 23rd International Conference on Principles of Knowledge
    Representation and Reasoning (KR 2026), 2026.'
conference:
  end_date: 2026-07-23
  location: Lisbon, Portugal
  name: 23rd International Conference on Principles of Knowledge Representation and
    Reasoning (KR 2026)
  start_date: 2026-07-20
date_created: 2026-04-22T14:16:58Z
date_updated: 2026-04-22T14:17:20Z
department:
- _id: '888'
language:
- iso: eng
publication: Proceedings of the 23rd International Conference on Principles of Knowledge
  Representation and Reasoning (KR 2026)
status: public
title: Common Foundations for Recursive Shape Languages
type: conference
user_id: '114410'
year: '2026'
...
---
_id: '63135'
abstract:
- lang: eng
  text: We propose a definition of Coxeter-Dynkin algebras of canonical type generalising
    the definition as a path algebra of a quiver. Moreover, we construct two tilting
    objects over the squid algebra - one via generalised APR-tilting and one via one-point-extensions
    and reflection functors - and identify their endomorphism algebras with the Coxeter-Dynkin
    algebra. This shows that our definition gives another representative in the derived
    equivalence class of the squid algebra, and hence of the corresponding canonical
    algebra. Finally, we have a closer look at the Grothendieck group and the Euler
    form which illustrates the connection to Saito's classification of marked extended
    affine root systems. On the other hand, this enables us to prove that in the domestic
    case Coxeter-Dynkin algebras are of finite representation type.
author:
- first_name: Daniel
  full_name: Perniok, Daniel
  id: '64242'
  last_name: Perniok
citation:
  ama: Perniok D. Coxeter-Dynkin algebras of canonical type. <i>Journal of Pure and
    Applied Algebra</i>. 2026;230(5). doi:<a href="https://doi.org/10.1016/j.jpaa.2026.108250">10.1016/j.jpaa.2026.108250</a>
  apa: Perniok, D. (2026). Coxeter-Dynkin algebras of canonical type. <i>Journal of
    Pure and Applied Algebra</i>, <i>230</i>(5). <a href="https://doi.org/10.1016/j.jpaa.2026.108250">https://doi.org/10.1016/j.jpaa.2026.108250</a>
  bibtex: '@article{Perniok_2026, title={Coxeter-Dynkin algebras of canonical type},
    volume={230}, DOI={<a href="https://doi.org/10.1016/j.jpaa.2026.108250">10.1016/j.jpaa.2026.108250</a>},
    number={5}, journal={Journal of Pure and Applied Algebra}, author={Perniok, Daniel},
    year={2026} }'
  chicago: Perniok, Daniel. “Coxeter-Dynkin Algebras of Canonical Type.” <i>Journal
    of Pure and Applied Algebra</i> 230, no. 5 (2026). <a href="https://doi.org/10.1016/j.jpaa.2026.108250">https://doi.org/10.1016/j.jpaa.2026.108250</a>.
  ieee: 'D. Perniok, “Coxeter-Dynkin algebras of canonical type,” <i>Journal of Pure
    and Applied Algebra</i>, vol. 230, no. 5, 2026, doi: <a href="https://doi.org/10.1016/j.jpaa.2026.108250">10.1016/j.jpaa.2026.108250</a>.'
  mla: Perniok, Daniel. “Coxeter-Dynkin Algebras of Canonical Type.” <i>Journal of
    Pure and Applied Algebra</i>, vol. 230, no. 5, 2026, doi:<a href="https://doi.org/10.1016/j.jpaa.2026.108250">10.1016/j.jpaa.2026.108250</a>.
  short: D. Perniok, Journal of Pure and Applied Algebra 230 (2026).
date_created: 2025-12-16T14:20:09Z
date_updated: 2026-04-23T13:00:59Z
department:
- _id: '602'
doi: 10.1016/j.jpaa.2026.108250
external_id:
  arxiv:
  - '2509.17887'
intvolume: '       230'
issue: '5'
language:
- iso: eng
publication: Journal of Pure and Applied Algebra
status: public
title: Coxeter-Dynkin algebras of canonical type
type: journal_article
user_id: '64242'
volume: 230
year: '2026'
...
---
_id: '61152'
abstract:
- lang: eng
  text: While neural network quantization effectively reduces the cost of matrix multiplications,
    aggressive quantization can expose non-matrix-multiply operations as significant
    performance and resource bottlenecks on embedded systems. Addressing such bottlenecks
    requires a comprehensive approach to tailoring the precision across operations
    in the inference computation. To this end, we introduce scaled-integer range analysis
    (SIRA), a static analysis technique employing interval arithmetic to determine
    the range, scale, and bias for tensors in quantized neural networks. We show how
    this information can be exploited to reduce the resource footprint of FPGA dataflow
    neural network accelerators via tailored bitwidth adaptation for accumulators
    and downstream operations, aggregation of scales and biases, and conversion of
    consecutive elementwise operations to thresholding operations. We integrate SIRA-driven
    optimizations into the open-source FINN framework, then evaluate their effectiveness
    across a range of quantized neural network workloads and compare implementation
    alternatives for non-matrix-multiply operations. We demonstrate an average reduction
    of 17\% for LUTs, 66\% for DSPs, and 22\% for accumulator bitwidths with SIRA
    optimizations, providing detailed benchmark analysis and analytical models to
    guide the implementation style for non-matrix layers. Finally, we open-source
    SIRA to facilitate community exploration of its benefits across various applications
    and hardware platforms.
author:
- first_name: Yaman
  full_name: Umuroglu, Yaman
  last_name: Umuroglu
- first_name: Christoph
  full_name: Berganski, Christoph
  id: '98854'
  last_name: Berganski
- first_name: Felix
  full_name: Jentzsch, Felix
  id: '55631'
  last_name: Jentzsch
  orcid: 0000-0003-4987-5708
- first_name: Michal
  full_name: Danilowicz, Michal
  last_name: Danilowicz
- first_name: Tomasz
  full_name: Kryjak, Tomasz
  last_name: Kryjak
- first_name: Charalampos
  full_name: Bezaitis, Charalampos
  last_name: Bezaitis
- first_name: Magnus
  full_name: Sjalander, Magnus
  last_name: Sjalander
- first_name: Ian
  full_name: Colbert, Ian
  last_name: Colbert
- first_name: Thomas
  full_name: Preusser, Thomas
  last_name: Preusser
- first_name: Jakoba
  full_name: Petri-Koenig, Jakoba
  last_name: Petri-Koenig
- first_name: Michaela
  full_name: Blott, Michaela
  last_name: Blott
citation:
  ama: 'Umuroglu Y, Berganski C, Jentzsch F, et al. SIRA: Scaled-Integer Range Analysis
    for Optimizing FPGA Dataflow Neural Network Accelerators. <i>ACM Transactions
    on Reconfigurable Technology and Systems</i>. doi:<a href="https://doi.org/10.1145/3807510">10.1145/3807510</a>'
  apa: 'Umuroglu, Y., Berganski, C., Jentzsch, F., Danilowicz, M., Kryjak, T., Bezaitis,
    C., Sjalander, M., Colbert, I., Preusser, T., Petri-Koenig, J., &#38; Blott, M.
    (n.d.). SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural
    Network Accelerators. <i>ACM Transactions on Reconfigurable Technology and Systems</i>.
    <a href="https://doi.org/10.1145/3807510">https://doi.org/10.1145/3807510</a>'
  bibtex: '@article{Umuroglu_Berganski_Jentzsch_Danilowicz_Kryjak_Bezaitis_Sjalander_Colbert_Preusser_Petri-Koenig_et
    al., title={SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural
    Network Accelerators}, DOI={<a href="https://doi.org/10.1145/3807510">10.1145/3807510</a>},
    journal={ACM Transactions on Reconfigurable Technology and Systems}, author={Umuroglu,
    Yaman and Berganski, Christoph and Jentzsch, Felix and Danilowicz, Michal and
    Kryjak, Tomasz and Bezaitis, Charalampos and Sjalander, Magnus and Colbert, Ian
    and Preusser, Thomas and Petri-Koenig, Jakoba and et al.} }'
  chicago: 'Umuroglu, Yaman, Christoph Berganski, Felix Jentzsch, Michal Danilowicz,
    Tomasz Kryjak, Charalampos Bezaitis, Magnus Sjalander, et al. “SIRA: Scaled-Integer
    Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators.” <i>ACM
    Transactions on Reconfigurable Technology and Systems</i>, n.d. <a href="https://doi.org/10.1145/3807510">https://doi.org/10.1145/3807510</a>.'
  ieee: 'Y. Umuroglu <i>et al.</i>, “SIRA: Scaled-Integer Range Analysis for Optimizing
    FPGA Dataflow Neural Network Accelerators,” <i>ACM Transactions on Reconfigurable
    Technology and Systems</i>, doi: <a href="https://doi.org/10.1145/3807510">10.1145/3807510</a>.'
  mla: 'Umuroglu, Yaman, et al. “SIRA: Scaled-Integer Range Analysis for Optimizing
    FPGA Dataflow Neural Network Accelerators.” <i>ACM Transactions on Reconfigurable
    Technology and Systems</i>, doi:<a href="https://doi.org/10.1145/3807510">10.1145/3807510</a>.'
  short: Y. Umuroglu, C. Berganski, F. Jentzsch, M. Danilowicz, T. Kryjak, C. Bezaitis,
    M. Sjalander, I. Colbert, T. Preusser, J. Petri-Koenig, M. Blott, ACM Transactions
    on Reconfigurable Technology and Systems (n.d.).
date_created: 2025-09-08T14:10:39Z
date_updated: 2026-04-27T14:13:50Z
department:
- _id: '78'
doi: 10.1145/3807510
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: ACM Transactions on Reconfigurable Technology and Systems
publication_identifier:
  issn:
  - 1936-7406
publication_status: submitted
status: public
title: 'SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network
  Accelerators'
type: journal_article
user_id: '55631'
year: '2026'
...
---
_id: '65501'
author:
- first_name: Lukas
  full_name: Stasytis, Lukas
  last_name: Stasytis
- first_name: Felix
  full_name: Jentzsch, Felix
  id: '55631'
  last_name: Jentzsch
  orcid: 0000-0003-4987-5708
- first_name: Thomas
  full_name: Preusser, Thomas
  last_name: Preusser
- first_name: Yaman
  full_name: Umuroglu, Yaman
  last_name: Umuroglu
- first_name: Jakoba
  full_name: Petri-Koenig, Jakoba
  last_name: Petri-Koenig
- first_name: Zsolt
  full_name: István, Zsolt
  last_name: István
citation:
  ama: 'Stasytis L, Jentzsch F, Preusser T, Umuroglu Y, Petri-Koenig J, István Z.
    Heuristic &#38;amp; Expert-Guided Buffer Sizing for Neural Network Inference Applications
    on FPGAs. In: <i>2025 International Conference on Field Programmable Technology
    (ICFPT)</i>. IEEE; 2026. doi:<a href="https://doi.org/10.1109/icfpt67023.2025.00032">10.1109/icfpt67023.2025.00032</a>'
  apa: Stasytis, L., Jentzsch, F., Preusser, T., Umuroglu, Y., Petri-Koenig, J., &#38;
    István, Z. (2026). Heuristic &#38;amp; Expert-Guided Buffer Sizing for Neural
    Network Inference Applications on FPGAs. <i>2025 International Conference on Field
    Programmable Technology (ICFPT)</i>. <a href="https://doi.org/10.1109/icfpt67023.2025.00032">https://doi.org/10.1109/icfpt67023.2025.00032</a>
  bibtex: '@inproceedings{Stasytis_Jentzsch_Preusser_Umuroglu_Petri-Koenig_István_2026,
    title={Heuristic &#38;amp; Expert-Guided Buffer Sizing for Neural Network Inference
    Applications on FPGAs}, DOI={<a href="https://doi.org/10.1109/icfpt67023.2025.00032">10.1109/icfpt67023.2025.00032</a>},
    booktitle={2025 International Conference on Field Programmable Technology (ICFPT)},
    publisher={IEEE}, author={Stasytis, Lukas and Jentzsch, Felix and Preusser, Thomas
    and Umuroglu, Yaman and Petri-Koenig, Jakoba and István, Zsolt}, year={2026} }'
  chicago: Stasytis, Lukas, Felix Jentzsch, Thomas Preusser, Yaman Umuroglu, Jakoba
    Petri-Koenig, and Zsolt István. “Heuristic &#38;amp; Expert-Guided Buffer Sizing
    for Neural Network Inference Applications on FPGAs.” In <i>2025 International
    Conference on Field Programmable Technology (ICFPT)</i>. IEEE, 2026. <a href="https://doi.org/10.1109/icfpt67023.2025.00032">https://doi.org/10.1109/icfpt67023.2025.00032</a>.
  ieee: 'L. Stasytis, F. Jentzsch, T. Preusser, Y. Umuroglu, J. Petri-Koenig, and
    Z. István, “Heuristic &#38;amp; Expert-Guided Buffer Sizing for Neural Network
    Inference Applications on FPGAs,” 2026, doi: <a href="https://doi.org/10.1109/icfpt67023.2025.00032">10.1109/icfpt67023.2025.00032</a>.'
  mla: Stasytis, Lukas, et al. “Heuristic &#38;amp; Expert-Guided Buffer Sizing for
    Neural Network Inference Applications on FPGAs.” <i>2025 International Conference
    on Field Programmable Technology (ICFPT)</i>, IEEE, 2026, doi:<a href="https://doi.org/10.1109/icfpt67023.2025.00032">10.1109/icfpt67023.2025.00032</a>.
  short: 'L. Stasytis, F. Jentzsch, T. Preusser, Y. Umuroglu, J. Petri-Koenig, Z.
    István, in: 2025 International Conference on Field Programmable Technology (ICFPT),
    IEEE, 2026.'
date_created: 2026-04-27T14:24:25Z
date_updated: 2026-04-27T14:25:51Z
department:
- _id: '78'
doi: 10.1109/icfpt67023.2025.00032
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: 2025 International Conference on Field Programmable Technology (ICFPT)
publication_status: published
publisher: IEEE
status: public
title: Heuristic &amp; Expert-Guided Buffer Sizing for Neural Network Inference Applications
  on FPGAs
type: conference
user_id: '55631'
year: '2026'
...
---
_id: '65500'
author:
- first_name: Felix
  full_name: Jentzsch, Felix
  id: '55631'
  last_name: Jentzsch
  orcid: 0000-0003-4987-5708
- first_name: Marco
  full_name: Platzner, Marco
  id: '398'
  last_name: Platzner
citation:
  ama: 'Jentzsch F, Platzner M. Empirical QoR Estimation Flow for Fast Design Space
    Exploration of DNN Dataflow Accelerators. In: <i>2025 International Conference
    on Field Programmable Technology (ICFPT)</i>. IEEE; 2026. doi:<a href="https://doi.org/10.1109/icfpt67023.2025.00044">10.1109/icfpt67023.2025.00044</a>'
  apa: Jentzsch, F., &#38; Platzner, M. (2026). Empirical QoR Estimation Flow for
    Fast Design Space Exploration of DNN Dataflow Accelerators. <i>2025 International
    Conference on Field Programmable Technology (ICFPT)</i>. <a href="https://doi.org/10.1109/icfpt67023.2025.00044">https://doi.org/10.1109/icfpt67023.2025.00044</a>
  bibtex: '@inproceedings{Jentzsch_Platzner_2026, title={Empirical QoR Estimation
    Flow for Fast Design Space Exploration of DNN Dataflow Accelerators}, DOI={<a
    href="https://doi.org/10.1109/icfpt67023.2025.00044">10.1109/icfpt67023.2025.00044</a>},
    booktitle={2025 International Conference on Field Programmable Technology (ICFPT)},
    publisher={IEEE}, author={Jentzsch, Felix and Platzner, Marco}, year={2026} }'
  chicago: Jentzsch, Felix, and Marco Platzner. “Empirical QoR Estimation Flow for
    Fast Design Space Exploration of DNN Dataflow Accelerators.” In <i>2025 International
    Conference on Field Programmable Technology (ICFPT)</i>. IEEE, 2026. <a href="https://doi.org/10.1109/icfpt67023.2025.00044">https://doi.org/10.1109/icfpt67023.2025.00044</a>.
  ieee: 'F. Jentzsch and M. Platzner, “Empirical QoR Estimation Flow for Fast Design
    Space Exploration of DNN Dataflow Accelerators,” 2026, doi: <a href="https://doi.org/10.1109/icfpt67023.2025.00044">10.1109/icfpt67023.2025.00044</a>.'
  mla: Jentzsch, Felix, and Marco Platzner. “Empirical QoR Estimation Flow for Fast
    Design Space Exploration of DNN Dataflow Accelerators.” <i>2025 International
    Conference on Field Programmable Technology (ICFPT)</i>, IEEE, 2026, doi:<a href="https://doi.org/10.1109/icfpt67023.2025.00044">10.1109/icfpt67023.2025.00044</a>.
  short: 'F. Jentzsch, M. Platzner, in: 2025 International Conference on Field Programmable
    Technology (ICFPT), IEEE, 2026.'
date_created: 2026-04-27T14:22:50Z
date_updated: 2026-04-27T14:26:01Z
department:
- _id: '78'
doi: 10.1109/icfpt67023.2025.00044
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: 2025 International Conference on Field Programmable Technology (ICFPT)
publication_status: published
publisher: IEEE
status: public
title: Empirical QoR Estimation Flow for Fast Design Space Exploration of DNN Dataflow
  Accelerators
type: conference
user_id: '55631'
year: '2026'
...
---
_id: '65512'
abstract:
- lang: eng
  text: "<jats:title>Zusammenfassung</jats:title>\r\n                  <jats:p>Risikokompetenz
    beinhaltet auch die Fähigkeit, stochastische Informationen, wie beispielsweise
    Anteile und Wahrscheinlichkeiten, richtig zu versprachlichen. Aus der Forschung
    zu bedingten Wahrscheinlichkeiten und Bayesianischen Aufgaben ist bekannt, dass
    die Nutzung von Visualisierungen und sogenannten „natürlichen Häufigkeiten“ (z. B.
    „80 von 100 Personen“) statt Wahrscheinlichkeiten in Prozent Verwechslungen beim
    Bestimmen von Wahrscheinlichkeiten eindämmen kann. Über den umgekehrten Prozess
    – das Versprachlichen von in Visualisierungen dargestellten Informationen – ist
    bisher jedoch wenig bekannt, obwohl diese Versprachlichungen auch für den Aufbau
    konzeptuellen Wissen als essentiell angesehen werden. In der vorliegenden Studie
    wurde daher untersucht, wie gut Schüler:innen die Versprachlichung von in Visualisierungen
    dargestellten Anteilen und natürlichen Häufigkeiten gelingt. Dazu wurde mit 138
    Realschüler:innen aus der 9. Jahrgangsstufe ein Papier-und-Bleistift-Test durchgeführt,
    bei dem den Teilnehmenden nacheinander je ein (vollständig ausgefülltes) Baumdiagramm
    und ein Netzdiagramm präsentiert wurde. Die Schüler:innen sollten die inhaltliche
    Bedeutung der in der Visualisierung dargestellten stochastischen Informationen
    möglichst genau versprachlichen. Fokus der Studie ist der Einfluss der Visualisierung
    (Baumdiagramm vs. Netzdiagramm) und des Informationsformats der Visualisierung
    (Anteile in Prozent vs. natürliche Häufigkeiten) auf die richtige Versprachlichung
    von verschiedenen Relationstypen (Schnittinformationen vs. bedingte Informationen).
    Die Ergebnisse zeigen unter anderem, dass Informationen in natürlichen Häufigkeiten
    deutlich besser versprachlicht werden als in Prozenten und dass Schnittinformationen
    in Prozent besser anhand von Netzdiagrammen als von Baumdiagrammen versprachlicht
    werden. Die gewonnenen Erkenntnisse geben überdies Einblicke in typische (fehlerhafte)
    Versprachlichungen von Schüler:innen und könnten als Basis für die Entwicklung
    eines sprachsensiblen Unterrichts zu Anteilen und Wahrscheinlichkeiten im schulischen
    Stochastikunterricht dienen.</jats:p>"
article_number: '5'
author:
- first_name: Michael
  full_name: Rößner, Michael
  id: '87801'
  last_name: Rößner
- first_name: Karin
  full_name: Binder, Karin
  id: '83381'
  last_name: Binder
- first_name: Julian
  full_name: Albrecht, Julian
  last_name: Albrecht
citation:
  ama: Rößner M, Binder K, Albrecht J. Versprachlichung von Anteilen und natürlichen
    Häufigkeiten anhand von Baum- und Netzdiagrammen Verbalization of proportions
    and natural frequencies based on tree diagrams and net diagrams. <i>Journal für
    Mathematik-Didaktik</i>. 2026;47(1). doi:<a href="https://doi.org/10.1007/s13138-026-00267-1">10.1007/s13138-026-00267-1</a>
  apa: Rößner, M., Binder, K., &#38; Albrecht, J. (2026). Versprachlichung von Anteilen
    und natürlichen Häufigkeiten anhand von Baum- und Netzdiagrammen Verbalization
    of proportions and natural frequencies based on tree diagrams and net diagrams.
    <i>Journal für Mathematik-Didaktik</i>, <i>47</i>(1), Article 5. <a href="https://doi.org/10.1007/s13138-026-00267-1">https://doi.org/10.1007/s13138-026-00267-1</a>
  bibtex: '@article{Rößner_Binder_Albrecht_2026, title={Versprachlichung von Anteilen
    und natürlichen Häufigkeiten anhand von Baum- und Netzdiagrammen Verbalization
    of proportions and natural frequencies based on tree diagrams and net diagrams},
    volume={47}, DOI={<a href="https://doi.org/10.1007/s13138-026-00267-1">10.1007/s13138-026-00267-1</a>},
    number={15}, journal={Journal für Mathematik-Didaktik}, publisher={Springer Science
    and Business Media LLC}, author={Rößner, Michael and Binder, Karin and Albrecht,
    Julian}, year={2026} }'
  chicago: Rößner, Michael, Karin Binder, and Julian Albrecht. “Versprachlichung von
    Anteilen und natürlichen Häufigkeiten anhand von Baum- und Netzdiagrammen Verbalization
    of proportions and natural frequencies based on tree diagrams and net diagrams.”
    <i>Journal für Mathematik-Didaktik</i> 47, no. 1 (2026). <a href="https://doi.org/10.1007/s13138-026-00267-1">https://doi.org/10.1007/s13138-026-00267-1</a>.
  ieee: 'M. Rößner, K. Binder, and J. Albrecht, “Versprachlichung von Anteilen und
    natürlichen Häufigkeiten anhand von Baum- und Netzdiagrammen Verbalization of
    proportions and natural frequencies based on tree diagrams and net diagrams,”
    <i>Journal für Mathematik-Didaktik</i>, vol. 47, no. 1, Art. no. 5, 2026, doi:
    <a href="https://doi.org/10.1007/s13138-026-00267-1">10.1007/s13138-026-00267-1</a>.'
  mla: Rößner, Michael, et al. “Versprachlichung von Anteilen und natürlichen Häufigkeiten
    anhand von Baum- und Netzdiagrammen Verbalization of proportions and natural frequencies
    based on tree diagrams and net diagrams.” <i>Journal für Mathematik-Didaktik</i>,
    vol. 47, no. 1, 5, Springer Science and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s13138-026-00267-1">10.1007/s13138-026-00267-1</a>.
  short: M. Rößner, K. Binder, J. Albrecht, Journal für Mathematik-Didaktik 47 (2026).
date_created: 2026-04-29T08:25:18Z
date_updated: 2026-04-29T08:29:01Z
ddc:
- '370'
department:
- _id: '983'
doi: 10.1007/s13138-026-00267-1
file:
- access_level: closed
  content_type: application/pdf
  creator: binder
  date_created: 2026-04-29T08:28:25Z
  date_updated: 2026-04-29T08:28:25Z
  file_id: '65514'
  file_name: Rößner Binder Albrecht 2026 Versprachlichung von Anteilen und natürlichen
    Häufigkeiten anhand von Baum- und Netzdiagrammen.pdf
  file_size: 2993685
  relation: main_file
  success: 1
file_date_updated: 2026-04-29T08:28:25Z
has_accepted_license: '1'
intvolume: '        47'
issue: '1'
language:
- iso: ger
publication: Journal für Mathematik-Didaktik
publication_identifier:
  issn:
  - 0173-5322
  - 1869-2699
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Versprachlichung von Anteilen und natürlichen Häufigkeiten anhand von Baum-
  und Netzdiagrammen Verbalization of proportions and natural frequencies based on
  tree diagrams and net diagrams
type: journal_article
user_id: '83381'
volume: 47
year: '2026'
...
---
_id: '65515'
abstract:
- lang: eng
  text: Abstract This study explores the usability and onboarding process of a Mixed
    Reality (MR) application called PEARL, designed to prepare students for laboratory
    work. Originally developed for mobile Augmented Reality (mAR), PEARL was adapted
    for MR to offer a more immersive and intuitive experience through hand and gesture
    controls. Since many students lack experience with MR devices, a user-friendly
    onboarding system is essential. The study aims to redesign PEARL’s user interface
    and onboarding experience, evaluating how intuitive interaction elements impact
    usability. First, a literature review will identify existing usability guidelines
    for MR applications, which will guide the redesign of the interface. This new
    version will then be tested with students through a user study. Feedback will
    be collected via an online survey to assess the onboarding and user experience,
    and the findings will be used to refine the design further. The expected outcome
    is an improved onboarding process and interface, making PEARL accessible even
    for MR novices, enhancing their ability to interact with 3D objects in a real-world
    setting. Ultimately, the study aims to provide best practices for developing intuitive
    MR interfaces and effective onboarding experiences, especially in educational
    contexts.
author:
- first_name: Mesut
  full_name: Alptekin, Mesut
  id: '11763'
  last_name: Alptekin
  orcid: 0009-0004-8545-1165
- first_name: Daniel
  full_name: Münstermann, Daniel
  last_name: Münstermann
- first_name: Katrin
  full_name: Temmen, Katrin
  last_name: Temmen
citation:
  ama: 'Alptekin M, Münstermann D, Temmen K. Designing and Evaluating the Usability
    and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn
    Electrical Engineering AR Laboratory) and Meta Quest 3. In: <i>Lecture Notes in
    Networks and Systems</i>. Vol 2. Smart Technologies for an All-Electric Society.
    Springer Nature Switzerland; 2026:199-211. doi:<a href="https://doi.org/10.1007/978-3-032-07319-8_19">10.1007/978-3-032-07319-8_19</a>'
  apa: 'Alptekin, M., Münstermann, D., &#38; Temmen, K. (2026). Designing and Evaluating
    the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL
    (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3. In <i>Lecture
    Notes in Networks and Systems</i> (Vol. 2, pp. 199–211). Springer Nature Switzerland.
    <a href="https://doi.org/10.1007/978-3-032-07319-8_19">https://doi.org/10.1007/978-3-032-07319-8_19</a>'
  bibtex: '@inbook{Alptekin_Münstermann_Temmen_2026, place={Cham}, series={Smart Technologies
    for an All-Electric Society}, title={Designing and Evaluating the Usability and Onboarding
    for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical
    Engineering AR Laboratory) and Meta Quest 3}, volume={2}, DOI={<a href="https://doi.org/10.1007/978-3-032-07319-8_19">10.1007/978-3-032-07319-8_19</a>},
    booktitle={Lecture Notes in Networks and Systems}, publisher={Springer Nature
    Switzerland}, author={Alptekin, Mesut and Münstermann, Daniel and Temmen, Katrin},
    year={2026}, pages={199–211}, collection={Smart Technologies for an All-Electric
    Society} }'
  chicago: 'Alptekin, Mesut, Daniel Münstermann, and Katrin Temmen. “Designing and Evaluating
    the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL
    (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3.” In <i>Lecture
    Notes in Networks and Systems</i>, 2:199–211. Smart Technologies for an All-Electric
    Society. Cham: Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-07319-8_19">https://doi.org/10.1007/978-3-032-07319-8_19</a>.'
  ieee: 'M. Alptekin, D. Münstermann, and K. Temmen, “Designing and Evaluating the Usability
    and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn
    Electrical Engineering AR Laboratory) and Meta Quest 3,” in <i>Lecture Notes in
    Networks and Systems</i>, vol. 2, Cham: Springer Nature Switzerland, 2026, pp.
    199–211.'
  mla: 'Alptekin, Mesut, et al. “Designing and Evaluating the Usability and Onboarding
    for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical
    Engineering AR Laboratory) and Meta Quest 3.” <i>Lecture Notes in Networks and
    Systems</i>, vol. 2, Springer Nature Switzerland, 2026, pp. 199–211, doi:<a href="https://doi.org/10.1007/978-3-032-07319-8_19">10.1007/978-3-032-07319-8_19</a>.'
  short: 'M. Alptekin, D. Münstermann, K. Temmen, in: Lecture Notes in Networks and
    Systems, Springer Nature Switzerland, Cham, 2026, pp. 199–211.'
conference:
  end_date: 2025-04-11
  location: Santiago, Chile
  name: International Conference on Smart Technologies & Education (STE2025)
  start_date: 2025-04-09
date_created: 2026-04-29T09:12:41Z
date_updated: 2026-04-29T09:23:02Z
department:
- _id: '34'
- _id: '3'
- _id: '300'
doi: 10.1007/978-3-032-07319-8_19
intvolume: '         2'
keyword:
- Meta Quest 3
- Augmented Reality
- Mixed Reality
- PEARL
- Electrical Engineering
- Laboratory Training
- Onboarding
- User Experience
- User Interface
- Heuristics
language:
- iso: eng
page: 199-211
place: Cham
publication: Lecture Notes in Networks and Systems
publication_identifier:
  isbn:
  - '9783032073181'
  - '9783032073198'
  issn:
  - 2367-3370
  - 2367-3389
publication_status: published
publisher: Springer Nature Switzerland
series_title: Smart Technologies for an All-Electric Society
status: public
title: 'Designing and Evaluating the Usability and Onboarding for a Mixed-Reality
  Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory)
  and Meta Quest 3'
type: book_chapter
user_id: '11763'
volume: 2
year: '2026'
...
---
_id: '65518'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>Optically
    assisted digital-to-analog converters (DACs) using Nyquist pulse sequences (NPSs)
    are presented and investigated. Therefore, NPSs are mathematically described and
    analyzed. Based on this, the operating principle of a precise optical Nyquist
    pulse synthesizer digital-to-analog converter (PONyDAC) is described. Possible
    architectures of PONyDAC are derived and compared in terms of performance and
    practicability. Moreover, the limits of PONyDAC systems and their superiority
    over classical electronic DACs are discussed. Furthermore, discrete building-block
    based implementations and monolithic implementations in electronic-photonic integrated
    circuits (EPICs) are presented. To enable a practicable monolithic integration,
    a shrinkage of the Mach-Zehnder modulators (MZMs) has been performed by applying
    forward-biased phase shifters (FB-PSs). These FB-PSs are analyzed and modeled
    to allow the precise and reliable design of PONyDAC systems with multiple MZMs.
    Finally, data conversion and data transmission experiments are carried out to
    demonstrate the systems functionality, quantify its performance, and prove their
    superiority over purely electronic DACs.</jats:p>"
author:
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Karanveer
  full_name: Singh, Karanveer
  last_name: Singh
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Thomas
  full_name: Schneider, Thomas
  last_name: Schneider
citation:
  ama: 'Scheytt JC, Schwabe T, Singh K, Kress C, Schneider T. Precise Optical Nyquist
    Pulse Synthesizer Digital-to-Analog Converter. In: Scheytt JC, Kress C, Berroth
    M, Pachnicke S, Witzens J, eds. <i>Electronic-Photonic Integrated Systems for
    Ultrafast Signal Processing</i>. Springer Nature Switzerland; 2026. doi:<a href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a>'
  apa: Scheytt, J. C., Schwabe, T., Singh, K., Kress, C., &#38; Schneider, T. (2026).
    Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter. In J. C.
    Scheytt, C. Kress, M. Berroth, S. Pachnicke, &#38; J. Witzens (Eds.), <i>Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing</i>. Springer Nature Switzerland.
    <a href="https://doi.org/10.1007/978-3-032-08340-1_4">https://doi.org/10.1007/978-3-032-08340-1_4</a>
  bibtex: '@inbook{Scheytt_Schwabe_Singh_Kress_Schneider_2026, place={Cham}, title={Precise
    Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter}, DOI={<a href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a>},
    booktitle={Electronic-Photonic Integrated Systems for Ultrafast Signal Processing},
    publisher={Springer Nature Switzerland}, author={Scheytt, J. Christoph and Schwabe,
    Tobias and Singh, Karanveer and Kress, Christian and Schneider, Thomas}, editor={Scheytt,
    J. Christoph and Kress, Christian and Berroth, Manfred and Pachnicke, Stephan
    and Witzens, Jeremy}, year={2026} }'
  chicago: 'Scheytt, J. Christoph, Tobias Schwabe, Karanveer Singh, Christian Kress,
    and Thomas Schneider. “Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog
    Converter.” In <i>Electronic-Photonic Integrated Systems for Ultrafast Signal
    Processing</i>, edited by J. Christoph Scheytt, Christian Kress, Manfred Berroth,
    Stephan Pachnicke, and Jeremy Witzens. Cham: Springer Nature Switzerland, 2026.
    <a href="https://doi.org/10.1007/978-3-032-08340-1_4">https://doi.org/10.1007/978-3-032-08340-1_4</a>.'
  ieee: 'J. C. Scheytt, T. Schwabe, K. Singh, C. Kress, and T. Schneider, “Precise
    Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter,” in <i>Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing</i>, J. C. Scheytt, C. Kress,
    M. Berroth, S. Pachnicke, and J. Witzens, Eds. Cham: Springer Nature Switzerland,
    2026.'
  mla: Scheytt, J. Christoph, et al. “Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog
    Converter.” <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>,
    edited by J. Christoph Scheytt et al., Springer Nature Switzerland, 2026, doi:<a
    href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a>.
  short: 'J.C. Scheytt, T. Schwabe, K. Singh, C. Kress, T. Schneider, in: J.C. Scheytt,
    C. Kress, M. Berroth, S. Pachnicke, J. Witzens (Eds.), Electronic-Photonic Integrated
    Systems for Ultrafast Signal Processing, Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-04-29T14:14:21Z
date_updated: 2026-04-29T14:28:40Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-08340-1_4
editor:
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  last_name: Scheytt
- first_name: Christian
  full_name: Kress, Christian
  last_name: Kress
- first_name: Manfred
  full_name: Berroth, Manfred
  last_name: Berroth
- first_name: Stephan
  full_name: Pachnicke, Stephan
  last_name: Pachnicke
- first_name: Jeremy
  full_name: Witzens, Jeremy
  last_name: Witzens
language:
- iso: eng
place: Cham
publication: Electronic-Photonic Integrated Systems for Ultrafast Signal Processing
publication_identifier:
  isbn:
  - '9783032083395'
  - '9783032083401'
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter
type: book_chapter
user_id: '13256'
year: '2026'
...
---
_id: '65256'
citation:
  ama: Scheytt JC, Kress C, Berroth M, Pachnicke S, Witzens J, eds. <i>Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing</i>. Springer Nature Switzerland;
    2026. doi:<a href="https://doi.org/10.1007/978-3-032-08340-1">10.1007/978-3-032-08340-1</a>
  apa: Scheytt, J. C., Kress, C., Berroth, M., Pachnicke, S., &#38; Witzens, J. (Eds.).
    (2026). <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>.
    Springer Nature Switzerland. <a href="https://doi.org/10.1007/978-3-032-08340-1">https://doi.org/10.1007/978-3-032-08340-1</a>
  bibtex: '@book{Scheytt_Kress_Berroth_Pachnicke_Witzens_2026, place={Cham}, title={Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing}, DOI={<a href="https://doi.org/10.1007/978-3-032-08340-1">10.1007/978-3-032-08340-1</a>},
    publisher={Springer Nature Switzerland}, year={2026} }'
  chicago: 'Scheytt, J. Christoph, Christian Kress, Manfred Berroth, Stephan Pachnicke,
    and Jeremy Witzens, eds. <i>Electronic-Photonic Integrated Systems for Ultrafast
    Signal Processing</i>. Cham: Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-08340-1">https://doi.org/10.1007/978-3-032-08340-1</a>.'
  ieee: 'J. C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, and J. Witzens, Eds.,
    <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>.
    Cham: Springer Nature Switzerland, 2026.'
  mla: Scheytt, J. Christoph, et al., editors. <i>Electronic-Photonic Integrated Systems
    for Ultrafast Signal Processing</i>. Springer Nature Switzerland, 2026, doi:<a
    href="https://doi.org/10.1007/978-3-032-08340-1">10.1007/978-3-032-08340-1</a>.
  short: J.C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, J. Witzens, eds., Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing, Springer Nature Switzerland,
    Cham, 2026.
date_created: 2026-03-31T09:02:20Z
date_updated: 2026-04-30T06:10:44Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-08340-1
editor:
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
  orcid: 0000-0002-4403-2237
- first_name: Manfred
  full_name: Berroth, Manfred
  last_name: Berroth
- first_name: Stephan
  full_name: Pachnicke, Stephan
  last_name: Pachnicke
- first_name: Jeremy
  full_name: Witzens, Jeremy
  last_name: Witzens
language:
- iso: eng
place: Cham
publication_identifier:
  isbn:
  - '9783032083395'
  - '9783032083401'
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Electronic-Photonic Integrated Systems for Ultrafast Signal Processing
type: book_editor
user_id: '13256'
year: '2026'
...
---
_id: '65554'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>\r\n                    An
    algorithm for cutting solid objects in a topology‐controlled manner is presented.
    Concretely, given a loop on the object boundary, a disk‐topology cut surface bounded
    by the loop is constructed in the interior. In contrast to various previous approaches,
    both disk topology and conformance to the prescribed loop are ensured by construction,
    while supporting not only contractible but also incontractible loops on the boundaries
    of manifold objects of higher genus and arbitrary non‐trivial topology. We describe
    an implementation of this algorithm in the discrete setting, with triangle mesh
    cut surfaces embedded in tetrahedral mesh objects. Making use of this novel cutting
    algorithm, we describe a method for the reliable construction of bijective volumetric
    maps between solid objects, demonstrating the algorithm's utility. This mapping
    method overcomes restrictions of the state of the art to topological balls, extending
    coverage to objects of arbitrary genus, specifically so‐called\r\n                    <jats:italic>1</jats:italic>\r\n
    \                   ‐handlebodies.\r\n                  </jats:p>"
article_number: e70379
author:
- first_name: Steffen
  full_name: Hinderink, Steffen
  id: '116615'
  last_name: Hinderink
- first_name: Marcel
  full_name: Campen, Marcel
  id: '114904'
  last_name: Campen
  orcid: 0000-0003-2340-3462
citation:
  ama: 'Hinderink S, Campen M. DiskScissors: Cutting Arbitrary‐Topology Solids for
    Bijective Mapping. <i>Computer Graphics Forum</i>. Published online 2026. doi:<a
    href="https://doi.org/10.1111/cgf.70379">10.1111/cgf.70379</a>'
  apa: 'Hinderink, S., &#38; Campen, M. (2026). DiskScissors: Cutting Arbitrary‐Topology
    Solids for Bijective Mapping. <i>Computer Graphics Forum</i>, Article e70379.
    <a href="https://doi.org/10.1111/cgf.70379">https://doi.org/10.1111/cgf.70379</a>'
  bibtex: '@article{Hinderink_Campen_2026, title={DiskScissors: Cutting Arbitrary‐Topology
    Solids for Bijective Mapping}, DOI={<a href="https://doi.org/10.1111/cgf.70379">10.1111/cgf.70379</a>},
    number={e70379}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Hinderink,
    Steffen and Campen, Marcel}, year={2026} }'
  chicago: 'Hinderink, Steffen, and Marcel Campen. “DiskScissors: Cutting Arbitrary‐Topology
    Solids for Bijective Mapping.” <i>Computer Graphics Forum</i>, 2026. <a href="https://doi.org/10.1111/cgf.70379">https://doi.org/10.1111/cgf.70379</a>.'
  ieee: 'S. Hinderink and M. Campen, “DiskScissors: Cutting Arbitrary‐Topology Solids
    for Bijective Mapping,” <i>Computer Graphics Forum</i>, Art. no. e70379, 2026,
    doi: <a href="https://doi.org/10.1111/cgf.70379">10.1111/cgf.70379</a>.'
  mla: 'Hinderink, Steffen, and Marcel Campen. “DiskScissors: Cutting Arbitrary‐Topology
    Solids for Bijective Mapping.” <i>Computer Graphics Forum</i>, e70379, Wiley,
    2026, doi:<a href="https://doi.org/10.1111/cgf.70379">10.1111/cgf.70379</a>.'
  short: S. Hinderink, M. Campen, Computer Graphics Forum (2026).
date_created: 2026-05-05T08:15:52Z
date_updated: 2026-05-05T08:17:55Z
department:
- _id: '969'
doi: 10.1111/cgf.70379
language:
- iso: eng
publication: Computer Graphics Forum
publication_identifier:
  issn:
  - 0167-7055
  - 1467-8659
publication_status: published
publisher: Wiley
status: public
title: 'DiskScissors: Cutting Arbitrary‐Topology Solids for Bijective Mapping'
type: journal_article
user_id: '117512'
year: '2026'
...
---
_id: '65567'
abstract:
- lang: eng
  text: "<jats:p>We introduce the notion of contrastive ABox explanations to answer
    questions of the type “Why is a an instance of C, but b is not?”. While there
    are various approaches for explaining positive entailments (why is C(a) entailed
    by the knowledge base) as well as missing entailments (why is C(b) not entailed)
    in isolation, contrastive explanations consider both at the same time, which allows
    them to focus on the relevant commonalities and differences between a and b. We
    develop an appropriate notion of contrastive explanations for the special case
    of ABox reasoning with description logic ontologies, and analyze the computational
    complexity for different variants under different optimality criteria, considering
    lightweight as well as more expressive description logics. We\r\nimplemented a
    first method for computing one variant of contrastive explanations, and evaluated
    it on generated problems for realistic knowledge bases.</jats:p>"
author:
- first_name: Patrick
  full_name: Koopmann, Patrick
  last_name: Koopmann
- first_name: Yasir
  full_name: Mahmood, Yasir
  id: '99353'
  last_name: Mahmood
- first_name: Axel-Cyrille
  full_name: Ngonga Ngomo, Axel-Cyrille
  id: '65716'
  last_name: Ngonga Ngomo
- first_name: Balram
  full_name: Tiwari, Balram
  last_name: Tiwari
citation:
  ama: 'Koopmann P, Mahmood Y, Ngonga Ngomo A-C, Tiwari B. Can You Tell the Difference?
    Contrastive Explanations for ABox Entailments. In: <i>Proceedings of the AAAI
    Conference on Artificial Intelligence</i>. Vol 40. Association for the Advancement
    of Artificial Intelligence (AAAI); 2026:19189-19197. doi:<a href="https://doi.org/10.1609/aaai.v40i23.38993">10.1609/aaai.v40i23.38993</a>'
  apa: Koopmann, P., Mahmood, Y., Ngonga Ngomo, A.-C., &#38; Tiwari, B. (2026). Can
    You Tell the Difference? Contrastive Explanations for ABox Entailments. <i>Proceedings
    of the AAAI Conference on Artificial Intelligence</i>, <i>40</i>(23), 19189–19197.
    <a href="https://doi.org/10.1609/aaai.v40i23.38993">https://doi.org/10.1609/aaai.v40i23.38993</a>
  bibtex: '@inproceedings{Koopmann_Mahmood_Ngonga Ngomo_Tiwari_2026, title={Can You
    Tell the Difference? Contrastive Explanations for ABox Entailments}, volume={40},
    DOI={<a href="https://doi.org/10.1609/aaai.v40i23.38993">10.1609/aaai.v40i23.38993</a>},
    number={23}, booktitle={Proceedings of the AAAI Conference on Artificial Intelligence},
    publisher={Association for the Advancement of Artificial Intelligence (AAAI)},
    author={Koopmann, Patrick and Mahmood, Yasir and Ngonga Ngomo, Axel-Cyrille and
    Tiwari, Balram}, year={2026}, pages={19189–19197} }'
  chicago: Koopmann, Patrick, Yasir Mahmood, Axel-Cyrille Ngonga Ngomo, and Balram
    Tiwari. “Can You Tell the Difference? Contrastive Explanations for ABox Entailments.”
    In <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>, 40:19189–97.
    Association for the Advancement of Artificial Intelligence (AAAI), 2026. <a href="https://doi.org/10.1609/aaai.v40i23.38993">https://doi.org/10.1609/aaai.v40i23.38993</a>.
  ieee: 'P. Koopmann, Y. Mahmood, A.-C. Ngonga Ngomo, and B. Tiwari, “Can You Tell
    the Difference? Contrastive Explanations for ABox Entailments,” in <i>Proceedings
    of the AAAI Conference on Artificial Intelligence</i>, 2026, vol. 40, no. 23,
    pp. 19189–19197, doi: <a href="https://doi.org/10.1609/aaai.v40i23.38993">10.1609/aaai.v40i23.38993</a>.'
  mla: Koopmann, Patrick, et al. “Can You Tell the Difference? Contrastive Explanations
    for ABox Entailments.” <i>Proceedings of the AAAI Conference on Artificial Intelligence</i>,
    vol. 40, no. 23, Association for the Advancement of Artificial Intelligence (AAAI),
    2026, pp. 19189–97, doi:<a href="https://doi.org/10.1609/aaai.v40i23.38993">10.1609/aaai.v40i23.38993</a>.
  short: 'P. Koopmann, Y. Mahmood, A.-C. Ngonga Ngomo, B. Tiwari, in: Proceedings
    of the AAAI Conference on Artificial Intelligence, Association for the Advancement
    of Artificial Intelligence (AAAI), 2026, pp. 19189–19197.'
date_created: 2026-05-05T15:15:49Z
date_updated: 2026-05-05T15:22:12Z
department:
- _id: '574'
doi: 10.1609/aaai.v40i23.38993
intvolume: '        40'
issue: '23'
language:
- iso: eng
page: 19189-19197
project:
- _id: '117'
  name: TRR 318 - Project Area C
publication: Proceedings of the AAAI Conference on Artificial Intelligence
publication_identifier:
  issn:
  - 2374-3468
  - 2159-5399
publication_status: published
publisher: Association for the Advancement of Artificial Intelligence (AAAI)
status: public
title: Can You Tell the Difference? Contrastive Explanations for ABox Entailments
type: conference
user_id: '99353'
volume: 40
year: '2026'
...
---
_id: '61759'
abstract:
- lang: eng
  text: 'Intersection distribution and non-hitting index are concepts introduced recently
    by Li and Pott as a new way to view the behaviour of a collection of finite field
    polynomials. With both an algebraic interpretation via the intersection of a polynomial
    with a set of lines, and a geometric interpretation via a (q+1)-set possessing
    an internal nucleus, the concepts have proved their usefulness as a new way to
    view various long-standing problems, and have applications in areas such as Kakeya
    sets. In this paper, by exploiting connections with diverse areas including the
    theory of algebraic curves, cyclotomy and the enumeration of irreducible polynomials,
    we establish new results and resolve various Open Problems of Li and Pott. We
    prove geometric results which shed new light on the relationship between intersection
    distribution and projective equivalence of polynomials, and algebraic results
    which describe and characterise the degree of Sf - the index of the largest non-zero
    entry in the intersection distribution of f. We provide new insights into the
    non-hitting spectrum, and show the limitations of the non-hitting index as a tool
    for characterisation. Finally, the benefits provided by the connections to other
    areas are evidenced in two short new proofs of the cubic case. '
article_number: '102828'
article_type: original
author:
- first_name: Lukas-André Dominik
  full_name: Klawuhn, Lukas-André Dominik
  id: '91965'
  last_name: Klawuhn
  orcid: 0009-0009-7736-4885
- first_name: Sophie
  full_name: Huczynska, Sophie
  last_name: Huczynska
- first_name: Maura
  full_name: Paterson, Maura
  last_name: Paterson
citation:
  ama: 'Klawuhn L-AD, Huczynska S, Paterson M. The Intersection Distribution: New
    Results and Perspectives. <i>Finite Fields and Their Applications</i>. 2026;114.
    doi:<a href="https://doi.org/10.1016/j.ffa.2026.102828">10.1016/j.ffa.2026.102828</a>'
  apa: 'Klawuhn, L.-A. D., Huczynska, S., &#38; Paterson, M. (2026). The Intersection
    Distribution: New Results and Perspectives. <i>Finite Fields and Their Applications</i>,
    <i>114</i>, Article 102828. <a href="https://doi.org/10.1016/j.ffa.2026.102828">https://doi.org/10.1016/j.ffa.2026.102828</a>'
  bibtex: '@article{Klawuhn_Huczynska_Paterson_2026, title={The Intersection Distribution:
    New Results and Perspectives}, volume={114}, DOI={<a href="https://doi.org/10.1016/j.ffa.2026.102828">10.1016/j.ffa.2026.102828</a>},
    number={102828}, journal={Finite Fields and Their Applications}, publisher={Elsevier},
    author={Klawuhn, Lukas-André Dominik and Huczynska, Sophie and Paterson, Maura},
    year={2026} }'
  chicago: 'Klawuhn, Lukas-André Dominik, Sophie Huczynska, and Maura Paterson. “The
    Intersection Distribution: New Results and Perspectives.” <i>Finite Fields and
    Their Applications</i> 114 (2026). <a href="https://doi.org/10.1016/j.ffa.2026.102828">https://doi.org/10.1016/j.ffa.2026.102828</a>.'
  ieee: 'L.-A. D. Klawuhn, S. Huczynska, and M. Paterson, “The Intersection Distribution:
    New Results and Perspectives,” <i>Finite Fields and Their Applications</i>, vol.
    114, Art. no. 102828, 2026, doi: <a href="https://doi.org/10.1016/j.ffa.2026.102828">10.1016/j.ffa.2026.102828</a>.'
  mla: 'Klawuhn, Lukas-André Dominik, et al. “The Intersection Distribution: New Results
    and Perspectives.” <i>Finite Fields and Their Applications</i>, vol. 114, 102828,
    Elsevier, 2026, doi:<a href="https://doi.org/10.1016/j.ffa.2026.102828">10.1016/j.ffa.2026.102828</a>.'
  short: L.-A.D. Klawuhn, S. Huczynska, M. Paterson, Finite Fields and Their Applications
    114 (2026).
date_created: 2025-10-08T14:52:20Z
date_updated: 2026-05-06T15:08:06Z
department:
- _id: '100'
doi: 10.1016/j.ffa.2026.102828
intvolume: '       114'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/S1071579726000390
oa: '1'
publication: Finite Fields and Their Applications
publisher: Elsevier
status: public
title: 'The Intersection Distribution: New Results and Perspectives'
type: journal_article
user_id: '91965'
volume: 114
year: '2026'
...
---
_id: '65586'
author:
- first_name: Henning
  full_name: Zeipert, Henning
  id: '32580'
  last_name: Zeipert
- first_name: Leander
  full_name: Claes, Leander
  id: '11829'
  last_name: Claes
  orcid: 0000-0002-4393-268X
- first_name: Jonas
  full_name: Hölscher, Jonas
  id: '73952'
  last_name: Hölscher
- first_name: Mareen
  full_name: Wippermann, Mareen
  id: '74624'
  last_name: Wippermann
- first_name: Bernd
  full_name: Henning, Bernd
  id: '213'
  last_name: Henning
citation:
  ama: 'Zeipert H, Claes L, Hölscher J, Wippermann M, Henning B. An Approach for the
    Efficient Solution of Eigenvalue-based Inverse Problems for the Material Characterisation
    Using Guided Acoustic Waves. In: Deutsche Gesellschaft für Akustik e.V., ed. <i>Fortschritte
    Der Akustik - DAGA 2026</i>. ; 2026:1566–1569. doi:<a href="https://doi.org/10.71568/DAGA2026.043">10.71568/DAGA2026.043</a>'
  apa: Zeipert, H., Claes, L., Hölscher, J., Wippermann, M., &#38; Henning, B. (2026).
    An Approach for the Efficient Solution of Eigenvalue-based Inverse Problems for
    the Material Characterisation Using Guided Acoustic Waves. In Deutsche Gesellschaft
    für Akustik e.V. (Ed.), <i>Fortschritte der Akustik - DAGA 2026</i> (pp. 1566–1569).
    <a href="https://doi.org/10.71568/DAGA2026.043">https://doi.org/10.71568/DAGA2026.043</a>
  bibtex: '@inproceedings{Zeipert_Claes_Hölscher_Wippermann_Henning_2026, place={Dresden},
    title={An Approach for the Efficient Solution of Eigenvalue-based Inverse Problems
    for the Material Characterisation Using Guided Acoustic Waves}, DOI={<a href="https://doi.org/10.71568/DAGA2026.043">10.71568/DAGA2026.043</a>},
    booktitle={Fortschritte der Akustik - DAGA 2026}, author={Zeipert, Henning and
    Claes, Leander and Hölscher, Jonas and Wippermann, Mareen and Henning, Bernd},
    editor={Deutsche Gesellschaft für Akustik e.V.}, year={2026}, pages={1566–1569}
    }'
  chicago: Zeipert, Henning, Leander Claes, Jonas Hölscher, Mareen Wippermann, and
    Bernd Henning. “An Approach for the Efficient Solution of Eigenvalue-Based Inverse
    Problems for the Material Characterisation Using Guided Acoustic Waves.” In <i>Fortschritte
    Der Akustik - DAGA 2026</i>, edited by Deutsche Gesellschaft für Akustik e.V.,
    1566–1569. Dresden, 2026. <a href="https://doi.org/10.71568/DAGA2026.043">https://doi.org/10.71568/DAGA2026.043</a>.
  ieee: 'H. Zeipert, L. Claes, J. Hölscher, M. Wippermann, and B. Henning, “An Approach
    for the Efficient Solution of Eigenvalue-based Inverse Problems for the Material
    Characterisation Using Guided Acoustic Waves,” in <i>Fortschritte der Akustik
    - DAGA 2026</i>, 2026, pp. 1566–1569, doi: <a href="https://doi.org/10.71568/DAGA2026.043">10.71568/DAGA2026.043</a>.'
  mla: Zeipert, Henning, et al. “An Approach for the Efficient Solution of Eigenvalue-Based
    Inverse Problems for the Material Characterisation Using Guided Acoustic Waves.”
    <i>Fortschritte Der Akustik - DAGA 2026</i>, edited by Deutsche Gesellschaft für
    Akustik e.V., 2026, pp. 1566–1569, doi:<a href="https://doi.org/10.71568/DAGA2026.043">10.71568/DAGA2026.043</a>.
  short: 'H. Zeipert, L. Claes, J. Hölscher, M. Wippermann, B. Henning, in: Deutsche
    Gesellschaft für Akustik e.V. (Ed.), Fortschritte Der Akustik - DAGA 2026, Dresden,
    2026, pp. 1566–1569.'
corporate_editor:
- Deutsche Gesellschaft für Akustik e.V.
date_created: 2026-05-08T12:29:43Z
date_updated: 2026-05-08T12:32:54Z
department:
- _id: '49'
doi: 10.71568/DAGA2026.043
language:
- iso: eng
page: 1566–1569
place: Dresden
project:
- _id: '105'
  name: Vermiedene Kreuzungen von Lamb-Wellenmoden in mehrlagigen Strukturen
publication: Fortschritte der Akustik - DAGA 2026
status: public
title: An Approach for the Efficient Solution of Eigenvalue-based Inverse Problems
  for the Material Characterisation Using Guided Acoustic Waves
type: conference
user_id: '11829'
year: '2026'
...
---
_id: '65587'
author:
- first_name: Leander
  full_name: Claes, Leander
  id: '11829'
  last_name: Claes
  orcid: 0000-0002-4393-268X
citation:
  ama: 'Claes L. Simultaneous measurement of bulk and shear viscosity using guided
    acoustic waves. In: Deutsche Gesellschaft für Akustik e.V., ed. <i>Fortschritte
    Der Akustik - DAGA 2026</i>. ; 2026:1089–1092. doi:<a href="https://doi.org/10.71568/DAGA2026.006">10.71568/DAGA2026.006</a>'
  apa: Claes, L. (2026). Simultaneous measurement of bulk and shear viscosity using
    guided acoustic waves. In Deutsche Gesellschaft für Akustik e.V. (Ed.), <i>Fortschritte
    der Akustik - DAGA 2026</i> (pp. 1089–1092). <a href="https://doi.org/10.71568/DAGA2026.006">https://doi.org/10.71568/DAGA2026.006</a>
  bibtex: '@inproceedings{Claes_2026, place={Dresden}, title={Simultaneous measurement
    of bulk and shear viscosity using guided acoustic waves}, DOI={<a href="https://doi.org/10.71568/DAGA2026.006">10.71568/DAGA2026.006</a>},
    booktitle={Fortschritte der Akustik - DAGA 2026}, author={Claes, Leander}, editor={Deutsche
    Gesellschaft für Akustik e.V.}, year={2026}, pages={1089–1092} }'
  chicago: Claes, Leander. “Simultaneous Measurement of Bulk and Shear Viscosity Using
    Guided Acoustic Waves.” In <i>Fortschritte Der Akustik - DAGA 2026</i>, edited
    by Deutsche Gesellschaft für Akustik e.V., 1089–1092. Dresden, 2026. <a href="https://doi.org/10.71568/DAGA2026.006">https://doi.org/10.71568/DAGA2026.006</a>.
  ieee: 'L. Claes, “Simultaneous measurement of bulk and shear viscosity using guided
    acoustic waves,” in <i>Fortschritte der Akustik - DAGA 2026</i>, 2026, pp. 1089–1092,
    doi: <a href="https://doi.org/10.71568/DAGA2026.006">10.71568/DAGA2026.006</a>.'
  mla: Claes, Leander. “Simultaneous Measurement of Bulk and Shear Viscosity Using
    Guided Acoustic Waves.” <i>Fortschritte Der Akustik - DAGA 2026</i>, edited by
    Deutsche Gesellschaft für Akustik e.V., 2026, pp. 1089–1092, doi:<a href="https://doi.org/10.71568/DAGA2026.006">10.71568/DAGA2026.006</a>.
  short: 'L. Claes, in: Deutsche Gesellschaft für Akustik e.V. (Ed.), Fortschritte
    Der Akustik - DAGA 2026, Dresden, 2026, pp. 1089–1092.'
corporate_editor:
- Deutsche Gesellschaft für Akustik e.V.
date_created: 2026-05-08T12:30:37Z
date_updated: 2026-05-08T12:33:01Z
department:
- _id: '49'
doi: 10.71568/DAGA2026.006
language:
- iso: eng
page: 1089–1092
place: Dresden
publication: Fortschritte der Akustik - DAGA 2026
status: public
title: Simultaneous measurement of bulk and shear viscosity using guided acoustic
  waves
type: conference
user_id: '11829'
year: '2026'
...
---
_id: '65521'
abstract:
- lang: eng
  text: We present recent progress made towards ultra-broadband photonically assisted
    analog-to-digital converters, that leverage both the low jitter of best-of-class
    mode-locked lasers as well as the capability of optics to break down broadband
    signals into multiple lower speed tributaries that can be better handled by electronics.
    We review in particular our work on both time- and frequency-domain approaches
    and give an outlook on how these architectures can be extended to include further
    signal processing tasks such as equalization. Optically triggered track-and-hold
    amplifiers are reported with an equivalent jitter below 80 fs rms in a signal
    frequency range from 20 GHz to 70 GHz. Frequency-domain architectures implementing
    optical arbitrary waveform measurement up to signal bandwidths of 610 GHz are
    also shown. Finally, an architecture allowing the deserialization and equalization
    of PAM4 signals is introduced and modeled for operation in 400 Gb/s links.
author:
- first_name: Jeremy
  full_name: Witzens, Jeremy
  last_name: Witzens
- first_name: Daniel
  full_name: Drayss, Daniel
  last_name: Drayss
- first_name: Dengyang
  full_name: Fang, Dengyang
  last_name: Fang
- first_name: Alvaro
  full_name: Moscoso Mártir, Alvaro
  last_name: Moscoso Mártir
- first_name: Juliana
  full_name: Müller, Juliana
  last_name: Müller
- first_name: Maxim
  full_name: Weizel, Maxim
  id: '44271'
  last_name: Weizel
  orcid: 0000-0003-2699-9839
- first_name: Andrea
  full_name: Zazzi, Andrea
  last_name: Zazzi
- first_name: Wolfgang
  full_name: Freude, Wolfgang
  last_name: Freude
- first_name: Christian
  full_name: Koos, Christian
  last_name: Koos
- first_name: Sebastian
  full_name: Randel, Sebastian
  last_name: Randel
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Witzens J, Drayss D, Fang D, et al. Ultra-Broadband Photonically Assisted
    Analog-to-Digital-Converters. In: Scheytt JC, Kress C, Berroth M, Pachnicke S,
    Witzens J, eds. <i>Electronic-Photonic Integrated Systems for Ultrafast Signal
    Processing</i>. Springer Nature Switzerland; 2026. doi:<a href="https://doi.org/10.1007/978-3-032-08340-1_3">10.1007/978-3-032-08340-1_3</a>'
  apa: Witzens, J., Drayss, D., Fang, D., Moscoso Mártir, A., Müller, J., Weizel,
    M., Zazzi, A., Freude, W., Koos, C., Randel, S., &#38; Scheytt, J. C. (2026).
    Ultra-Broadband Photonically Assisted Analog-to-Digital-Converters. In J. C. Scheytt,
    C. Kress, M. Berroth, S. Pachnicke, &#38; J. Witzens (Eds.), <i>Electronic-Photonic
    Integrated Systems for Ultrafast Signal Processing</i>. Springer Nature Switzerland.
    <a href="https://doi.org/10.1007/978-3-032-08340-1_3">https://doi.org/10.1007/978-3-032-08340-1_3</a>
  bibtex: '@inbook{Witzens_Drayss_Fang_Moscoso Mártir_Müller_Weizel_Zazzi_Freude_Koos_Randel_et
    al._2026, place={Cham}, title={Ultra-Broadband Photonically Assisted Analog-to-Digital-Converters},
    DOI={<a href="https://doi.org/10.1007/978-3-032-08340-1_3">10.1007/978-3-032-08340-1_3</a>},
    booktitle={Electronic-Photonic Integrated Systems for Ultrafast Signal Processing},
    publisher={Springer Nature Switzerland}, author={Witzens, Jeremy and Drayss, Daniel
    and Fang, Dengyang and Moscoso Mártir, Alvaro and Müller, Juliana and Weizel,
    Maxim and Zazzi, Andrea and Freude, Wolfgang and Koos, Christian and Randel, Sebastian
    and et al.}, editor={Scheytt, J. Christoph and Kress, Christian and Berroth, Manfred
    and Pachnicke, Stephan and Witzens, Jeremy}, year={2026} }'
  chicago: 'Witzens, Jeremy, Daniel Drayss, Dengyang Fang, Alvaro Moscoso Mártir,
    Juliana Müller, Maxim Weizel, Andrea Zazzi, et al. “Ultra-Broadband Photonically
    Assisted Analog-to-Digital-Converters.” In <i>Electronic-Photonic Integrated Systems
    for Ultrafast Signal Processing</i>, edited by J. Christoph Scheytt, Christian
    Kress, Manfred Berroth, Stephan Pachnicke, and Jeremy Witzens. Cham: Springer
    Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-08340-1_3">https://doi.org/10.1007/978-3-032-08340-1_3</a>.'
  ieee: 'J. Witzens <i>et al.</i>, “Ultra-Broadband Photonically Assisted Analog-to-Digital-Converters,”
    in <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>,
    J. C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, and J. Witzens, Eds. Cham:
    Springer Nature Switzerland, 2026.'
  mla: Witzens, Jeremy, et al. “Ultra-Broadband Photonically Assisted Analog-to-Digital-Converters.”
    <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>,
    edited by J. Christoph Scheytt et al., Springer Nature Switzerland, 2026, doi:<a
    href="https://doi.org/10.1007/978-3-032-08340-1_3">10.1007/978-3-032-08340-1_3</a>.
  short: 'J. Witzens, D. Drayss, D. Fang, A. Moscoso Mártir, J. Müller, M. Weizel,
    A. Zazzi, W. Freude, C. Koos, S. Randel, J.C. Scheytt, in: J.C. Scheytt, C. Kress,
    M. Berroth, S. Pachnicke, J. Witzens (Eds.), Electronic-Photonic Integrated Systems
    for Ultrafast Signal Processing, Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-04-30T06:07:38Z
date_updated: 2026-05-11T07:56:04Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-08340-1_3
editor:
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  last_name: Scheytt
- first_name: Christian
  full_name: Kress, Christian
  last_name: Kress
- first_name: Manfred
  full_name: Berroth, Manfred
  last_name: Berroth
- first_name: Stephan
  full_name: Pachnicke, Stephan
  last_name: Pachnicke
- first_name: Jeremy
  full_name: Witzens, Jeremy
  last_name: Witzens
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/content/pdf/10.1007/978-3-032-08340-1.pdf
oa: '1'
place: Cham
project:
- _id: '303'
  name: 'SPP 2111; TP: Ultrabreitbandiger Photonisch-Elektronischer Analog-Digital-Wandler
    (PACE) - Phase 2'
publication: Electronic-Photonic Integrated Systems for Ultrafast Signal Processing
publication_identifier:
  isbn:
  - '9783032083395'
  - '9783032083401'
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Ultra-Broadband Photonically Assisted Analog-to-Digital-Converters
type: book_chapter
user_id: '44271'
year: '2026'
...
---
_id: '65600'
abstract:
- lang: eng
  text: Integrated photonic-assisted signal processing has multiple applications such
    as signal amplification, multiplexing, and high-Q filtering in optical communication
    systems, optical sensing systems, and also microwave photonics. We will review
    recent works on integrated photonic-assisted signal processing for sinc-shaped
    Nyquist pulse generation, high-bandwidth Nyquist signal detection with low bandwidth
    devices, arbitrary waveform generation and measurement, and on-chip photonic frequency
    decoding. However, in such photonic integrated circuits (PICs), the photonic components
    are placed very close to each other on the chip, resulting in thermal crosstalk
    which degrades the system performance. Air-filled oxide and deep trench designs
    have proven to be very effective in mitigating the thermal crosstalk for various
    frequently deployed photonic devices like Mach-Zehnder modulators (MZMs), ring
    resonators, optical switches, and photodetectors designed on a standard silicon-on-insulator
    (SOI) platform. In this chapter, we will additionally review the basics of optical
    signal processing and some results for such trench-enhanced thermal crosstalk
    resilient circuits.
author:
- first_name: Souvaraj
  full_name: De, Souvaraj
  last_name: De
- first_name: Younus
  full_name: Mandalawi, Younus
  last_name: Mandalawi
- first_name: Ranjan
  full_name: Das, Ranjan
  last_name: Das
- first_name: Maxim
  full_name: Weizel, Maxim
  id: '44271'
  last_name: Weizel
  orcid: 0000-0003-2699-9839
citation:
  ama: 'De S, Mandalawi Y, Das R, Weizel M. Integrated Photonic-Assisted Signal Processing
    and Thermal Crosstalk. In: <i>Metrology for THz Communications</i>. Springer Nature
    Switzerland; 2026. doi:<a href="https://doi.org/10.1007/978-3-032-01986-8_20">10.1007/978-3-032-01986-8_20</a>'
  apa: De, S., Mandalawi, Y., Das, R., &#38; Weizel, M. (2026). Integrated Photonic-Assisted
    Signal Processing and Thermal Crosstalk. In <i>Metrology for THz Communications</i>.
    Springer Nature Switzerland. <a href="https://doi.org/10.1007/978-3-032-01986-8_20">https://doi.org/10.1007/978-3-032-01986-8_20</a>
  bibtex: '@inbook{De_Mandalawi_Das_Weizel_2026, place={Cham}, title={Integrated Photonic-Assisted
    Signal Processing and Thermal Crosstalk}, DOI={<a href="https://doi.org/10.1007/978-3-032-01986-8_20">10.1007/978-3-032-01986-8_20</a>},
    booktitle={Metrology for THz Communications}, publisher={Springer Nature Switzerland},
    author={De, Souvaraj and Mandalawi, Younus and Das, Ranjan and Weizel, Maxim},
    year={2026} }'
  chicago: 'De, Souvaraj, Younus Mandalawi, Ranjan Das, and Maxim Weizel. “Integrated
    Photonic-Assisted Signal Processing and Thermal Crosstalk.” In <i>Metrology for
    THz Communications</i>. Cham: Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-01986-8_20">https://doi.org/10.1007/978-3-032-01986-8_20</a>.'
  ieee: 'S. De, Y. Mandalawi, R. Das, and M. Weizel, “Integrated Photonic-Assisted
    Signal Processing and Thermal Crosstalk,” in <i>Metrology for THz Communications</i>,
    Cham: Springer Nature Switzerland, 2026.'
  mla: De, Souvaraj, et al. “Integrated Photonic-Assisted Signal Processing and Thermal
    Crosstalk.” <i>Metrology for THz Communications</i>, Springer Nature Switzerland,
    2026, doi:<a href="https://doi.org/10.1007/978-3-032-01986-8_20">10.1007/978-3-032-01986-8_20</a>.
  short: 'S. De, Y. Mandalawi, R. Das, M. Weizel, in: Metrology for THz Communications,
    Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-05-11T07:38:38Z
date_updated: 2026-05-11T07:54:32Z
department:
- _id: '58'
doi: 10.1007/978-3-032-01986-8_20
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/content/pdf/10.1007/978-3-032-01986-8.pdf
oa: '1'
place: Cham
project:
- _id: '298'
  name: 'FOR 2863: Metrologie für die THz Kommunikation (Meteracom)'
- _id: '308'
  name: 'FOR 2863:  Metrologie für die THz Kommunikation, TP: Ultrabreitbandige Abtastung'
- _id: '313'
  name: 'FOR 2863:  Metrologie für die THz Kommunikation, TP C3: Skalierbares THz
    Transceiver Impairment Modell'
publication: Metrology for THz Communications
publication_identifier:
  isbn:
  - '9783032019851'
  - '9783032019868'
  issn:
  - 0342-4111
  - 1556-1534
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Integrated Photonic-Assisted Signal Processing and Thermal Crosstalk
type: book_chapter
user_id: '44271'
year: '2026'
...
---
_id: '65601'
abstract:
- lang: eng
  text: High-speed ADCs operating in the tens of gigahertz up to potentially terahertz
    range are largely constrained by the jitter in their clock sources. By incorporating
    photonically assisted samplers that exploit the ultralow jitter of specific mode-locked
    lasers (MLLs) as analogue ADC frontends, the performance limits of data converters
    can be pushed to achieve unprecedented levels of accuracy. Continuous advancements
    in electronic-photonic integration (silicon photonics) are clearing the path for
    integrating these systems on a chip scale, thereby leading to increased scalability,
    as well as reduced cost and power consumption.
author:
- first_name: Maxim
  full_name: Weizel, Maxim
  id: '44271'
  last_name: Weizel
  orcid: 0000-0003-2699-9839
- first_name: Meysam
  full_name: Bahmanian, Meysam
  id: '69233'
  last_name: Bahmanian
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Weizel M, Bahmanian M, Scheytt JC. Integrated Photonically Assisted Samplers.
    In: <i>Metrology for THz Communications</i>. Springer Nature Switzerland; 2026.
    doi:<a href="https://doi.org/10.1007/978-3-032-01986-8_29">10.1007/978-3-032-01986-8_29</a>'
  apa: Weizel, M., Bahmanian, M., &#38; Scheytt, J. C. (2026). Integrated Photonically
    Assisted Samplers. In <i>Metrology for THz Communications</i>. Springer Nature
    Switzerland. <a href="https://doi.org/10.1007/978-3-032-01986-8_29">https://doi.org/10.1007/978-3-032-01986-8_29</a>
  bibtex: '@inbook{Weizel_Bahmanian_Scheytt_2026, place={Cham}, title={Integrated
    Photonically Assisted Samplers}, DOI={<a href="https://doi.org/10.1007/978-3-032-01986-8_29">10.1007/978-3-032-01986-8_29</a>},
    booktitle={Metrology for THz Communications}, publisher={Springer Nature Switzerland},
    author={Weizel, Maxim and Bahmanian, Meysam and Scheytt, J. Christoph}, year={2026}
    }'
  chicago: 'Weizel, Maxim, Meysam Bahmanian, and J. Christoph Scheytt. “Integrated
    Photonically Assisted Samplers.” In <i>Metrology for THz Communications</i>. Cham:
    Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-01986-8_29">https://doi.org/10.1007/978-3-032-01986-8_29</a>.'
  ieee: 'M. Weizel, M. Bahmanian, and J. C. Scheytt, “Integrated Photonically Assisted
    Samplers,” in <i>Metrology for THz Communications</i>, Cham: Springer Nature Switzerland,
    2026.'
  mla: Weizel, Maxim, et al. “Integrated Photonically Assisted Samplers.” <i>Metrology
    for THz Communications</i>, Springer Nature Switzerland, 2026, doi:<a href="https://doi.org/10.1007/978-3-032-01986-8_29">10.1007/978-3-032-01986-8_29</a>.
  short: 'M. Weizel, M. Bahmanian, J.C. Scheytt, in: Metrology for THz Communications,
    Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-05-11T07:51:04Z
date_updated: 2026-05-11T07:58:06Z
department:
- _id: '58'
doi: 10.1007/978-3-032-01986-8_29
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/content/pdf/10.1007/978-3-032-01986-8.pdf
oa: '1'
place: Cham
project:
- _id: '298'
  name: 'FOR 2863: Metrologie für die THz Kommunikation (Meteracom)'
- _id: '308'
  name: 'FOR 2863:  Metrologie für die THz Kommunikation, TP: Ultrabreitbandige Abtastung'
- _id: '313'
  name: 'FOR 2863:  Metrologie für die THz Kommunikation, TP C3: Skalierbares THz
    Transceiver Impairment Modell'
publication: Metrology for THz Communications
publication_identifier:
  isbn:
  - '9783032019851'
  - '9783032019868'
  issn:
  - 0342-4111
  - 1556-1534
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Integrated Photonically Assisted Samplers
type: book_chapter
user_id: '44271'
year: '2026'
...
