---
_id: '29928'
author:
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Stefan
full_name: Sauer, Stefan
id: '447'
last_name: Sauer
- first_name: Gregor
full_name: Engels, Gregor
id: '107'
last_name: Engels
citation:
ama: 'Yigitbas E, Sauer S, Engels G. Self-Adaptive Digital Assistance Systems for
Work 4.0. In: Vogel-Heuser B, Wimmer M, eds. Digital Transformation: Core Technologies
and Emerging Topics from a Computer Science Perspective. Springer-Vieweg;
2022.'
apa: 'Yigitbas, E., Sauer, S., & Engels, G. (2022). Self-Adaptive Digital Assistance
Systems for Work 4.0. In B. Vogel-Heuser & M. Wimmer (Eds.), Digital Transformation:
Core Technologies and Emerging Topics from a Computer Science Perspective.
Springer-Vieweg.'
bibtex: '@inbook{Yigitbas_Sauer_Engels_2022, title={Self-Adaptive Digital Assistance
Systems for Work 4.0}, booktitle={Digital Transformation: Core Technologies and
Emerging Topics from a Computer Science Perspective}, publisher={Springer-Vieweg},
author={Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}, editor={Vogel-Heuser,
Birgit and Wimmer, Manuel}, year={2022} }'
chicago: 'Yigitbas, Enes, Stefan Sauer, and Gregor Engels. “Self-Adaptive Digital
Assistance Systems for Work 4.0.” In Digital Transformation: Core Technologies
and Emerging Topics from a Computer Science Perspective, edited by Birgit
Vogel-Heuser and Manuel Wimmer. Springer-Vieweg, 2022.'
ieee: 'E. Yigitbas, S. Sauer, and G. Engels, “Self-Adaptive Digital Assistance Systems
for Work 4.0,” in Digital Transformation: Core Technologies and Emerging Topics
from a Computer Science Perspective, B. Vogel-Heuser and M. Wimmer, Eds. Springer-Vieweg,
2022.'
mla: 'Yigitbas, Enes, et al. “Self-Adaptive Digital Assistance Systems for Work
4.0.” Digital Transformation: Core Technologies and Emerging Topics from a
Computer Science Perspective, edited by Birgit Vogel-Heuser and Manuel Wimmer,
Springer-Vieweg, 2022.'
short: 'E. Yigitbas, S. Sauer, G. Engels, in: B. Vogel-Heuser, M. Wimmer (Eds.),
Digital Transformation: Core Technologies and Emerging Topics from a Computer
Science Perspective, Springer-Vieweg, 2022.'
date_created: 2022-02-21T10:52:34Z
date_updated: 2022-04-26T07:27:40Z
ddc:
- '006'
department:
- _id: '66'
- _id: '534'
editor:
- first_name: Birgit
full_name: Vogel-Heuser, Birgit
last_name: Vogel-Heuser
- first_name: Manuel
full_name: Wimmer, Manuel
last_name: Wimmer
file:
- access_level: open_access
content_type: application/pdf
creator: enes
date_created: 2022-02-21T10:52:02Z
date_updated: 2022-04-26T07:27:39Z
file_id: '29929'
file_name: I4.0-YSE-Final.pdf
file_size: 1769270
relation: main_file
file_date_updated: 2022-04-26T07:27:39Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: 'Digital Transformation: Core Technologies and Emerging Topics from a
Computer Science Perspective'
publisher: Springer-Vieweg
status: public
title: Self-Adaptive Digital Assistance Systems for Work 4.0
type: book_chapter
user_id: '8447'
year: '2022'
...
---
_id: '30964'
article_number: '044022'
article_type: letter_note
author:
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Gao W, Sain B, Zentgraf T. Spin-Orbit Interaction of Light Enabled by Negative
Coupling in High-Quality-Factor Optical Metasurfaces. Physical Review Applied.
2022;17(4). doi:10.1103/physrevapplied.17.044022
apa: Gao, W., Sain, B., & Zentgraf, T. (2022). Spin-Orbit Interaction of Light
Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces. Physical
Review Applied, 17(4), Article 044022. https://doi.org/10.1103/physrevapplied.17.044022
bibtex: '@article{Gao_Sain_Zentgraf_2022, title={Spin-Orbit Interaction of Light
Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces}, volume={17},
DOI={10.1103/physrevapplied.17.044022},
number={4044022}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Gao, Wenlong and Sain, Basudeb and Zentgraf, Thomas},
year={2022} }'
chicago: Gao, Wenlong, Basudeb Sain, and Thomas Zentgraf. “Spin-Orbit Interaction
of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces.”
Physical Review Applied 17, no. 4 (2022). https://doi.org/10.1103/physrevapplied.17.044022.
ieee: 'W. Gao, B. Sain, and T. Zentgraf, “Spin-Orbit Interaction of Light Enabled
by Negative Coupling in High-Quality-Factor Optical Metasurfaces,” Physical
Review Applied, vol. 17, no. 4, Art. no. 044022, 2022, doi: 10.1103/physrevapplied.17.044022.'
mla: Gao, Wenlong, et al. “Spin-Orbit Interaction of Light Enabled by Negative Coupling
in High-Quality-Factor Optical Metasurfaces.” Physical Review Applied,
vol. 17, no. 4, 044022, American Physical Society (APS), 2022, doi:10.1103/physrevapplied.17.044022.
short: W. Gao, B. Sain, T. Zentgraf, Physical Review Applied 17 (2022).
date_created: 2022-04-27T11:07:03Z
date_updated: 2022-04-27T11:09:11Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1103/physrevapplied.17.044022
intvolume: ' 17'
issue: '4'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2202.11980
oa: '1'
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
quality_controlled: '1'
status: public
title: Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor
Optical Metasurfaces
type: journal_article
user_id: '30525'
volume: 17
year: '2022'
...
---
_id: '23398'
abstract:
- lang: eng
text: "We study output reference tracking of systems with high relative degree via
output feedback only; this is, tracking where the output derivatives are unknown.\r\nTo
this end, we prove that the conjunction of the funnel pre-compensator with a minimum
phase system of arbitrary relative degree yields a system of the same relative
degree which is minimum phase as well. \r\nThe error between the original system's
output and the pre-compensator's output evolves within a prescribed performance
funnel; and moreover, the derivatives of the funnel pre-compensator's output are
known explicitly. \r\nTherefore, output reference tracking with prescribed transient
behavior of the tracking error is possible without knowledge of the derivatives
of the original system's output; via funnel control schemes for instance."
article_type: original
author:
- first_name: Lukas Johannes
full_name: Lanza, Lukas Johannes
id: '78640'
last_name: Lanza
citation:
ama: Lanza LJ. Output feedback control with prescribed performance via funnel pre-compensator.
Mathematics of Control, Signals, and Systems. Published online 2022. doi:10.1007/s00498-022-00322-5
apa: Lanza, L. J. (2022). Output feedback control with prescribed performance via
funnel pre-compensator. Mathematics of Control, Signals, and Systems. https://doi.org/10.1007/s00498-022-00322-5
bibtex: '@article{Lanza_2022, title={Output feedback control with prescribed performance
via funnel pre-compensator}, DOI={10.1007/s00498-022-00322-5},
journal={Mathematics of Control, Signals, and Systems}, author={Lanza, Lukas Johannes},
year={2022} }'
chicago: Lanza, Lukas Johannes. “Output Feedback Control with Prescribed Performance
via Funnel Pre-Compensator.” Mathematics of Control, Signals, and Systems,
2022. https://doi.org/10.1007/s00498-022-00322-5.
ieee: 'L. J. Lanza, “Output feedback control with prescribed performance via funnel
pre-compensator,” Mathematics of Control, Signals, and Systems, 2022, doi:
10.1007/s00498-022-00322-5.'
mla: Lanza, Lukas Johannes. “Output Feedback Control with Prescribed Performance
via Funnel Pre-Compensator.” Mathematics of Control, Signals, and Systems,
2022, doi:10.1007/s00498-022-00322-5.
short: L.J. Lanza, Mathematics of Control, Signals, and Systems (2022).
date_created: 2021-08-15T09:43:21Z
date_updated: 2022-04-28T06:14:25Z
ddc:
- '510'
doi: 10.1007/s00498-022-00322-5
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Mathematics of Control, Signals, and Systems
publication_status: published
status: public
title: Output feedback control with prescribed performance via funnel pre-compensator
type: journal_article
user_id: '78640'
year: '2022'
...
---
_id: '32180'
author:
- first_name: Henning
full_name: Meschede, Henning
id: '86954'
last_name: Meschede
- first_name: Paul
full_name: Bertheau, Paul
last_name: Bertheau
- first_name: Siavash
full_name: Khalili, Siavash
last_name: Khalili
- first_name: Christian
full_name: Breyer, Christian
last_name: Breyer
citation:
ama: Meschede H, Bertheau P, Khalili S, Breyer C. A review of 100% renewable energy
scenarios on islands. WIREs Energy and Environment. Published online 2022.
doi:10.1002/wene.450
apa: Meschede, H., Bertheau, P., Khalili, S., & Breyer, C. (2022). A review
of 100% renewable energy scenarios on islands. WIREs Energy and Environment.
https://doi.org/10.1002/wene.450
bibtex: '@article{Meschede_Bertheau_Khalili_Breyer_2022, title={A review of 100%
renewable energy scenarios on islands}, DOI={10.1002/wene.450},
journal={WIREs Energy and Environment}, publisher={Wiley}, author={Meschede, Henning
and Bertheau, Paul and Khalili, Siavash and Breyer, Christian}, year={2022} }'
chicago: Meschede, Henning, Paul Bertheau, Siavash Khalili, and Christian Breyer.
“A Review of 100% Renewable Energy Scenarios on Islands.” WIREs Energy and
Environment, 2022. https://doi.org/10.1002/wene.450.
ieee: 'H. Meschede, P. Bertheau, S. Khalili, and C. Breyer, “A review of 100% renewable
energy scenarios on islands,” WIREs Energy and Environment, 2022, doi:
10.1002/wene.450.'
mla: Meschede, Henning, et al. “A Review of 100% Renewable Energy Scenarios on Islands.”
WIREs Energy and Environment, Wiley, 2022, doi:10.1002/wene.450.
short: H. Meschede, P. Bertheau, S. Khalili, C. Breyer, WIREs Energy and Environment
(2022).
date_created: 2022-06-27T09:32:06Z
date_updated: 2022-06-27T09:34:46Z
doi: 10.1002/wene.450
keyword:
- General Environmental Science
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://wires.onlinelibrary.wiley.com/doi/epdf/10.1002/wene.450
oa: '1'
publication: WIREs Energy and Environment
publication_identifier:
issn:
- 2041-8396
- 2041-840X
publication_status: published
publisher: Wiley
status: public
title: A review of 100% renewable energy scenarios on islands
type: journal_article
user_id: '86954'
year: '2022'
...
---
_id: '29842'
abstract:
- lang: eng
text: To build successful software products, developers continuously have to discover
what features the users really need. This discovery can be achieved with continuous
experimentation, testing different software variants with distinct user groups,
and deploying the superior variant for all users. However, existing approaches
do not focus on explicit modeling of variants and experiments, which offers advantages
such as traceability of decisions and combinability of experiments. Therefore,
our vision is the provision of model-driven continuous experimentation, which
provides the developer with a framework for structuring the experimentation process.
For that, we introduce the overall concept, apply it to the experimentation on
component-based software architectures and point out future research questions.
In particular, we show the applicability by combining feature models for modeling
the software variants, users, and experiments (i.e., model-driven) with MAPE-K
for the adaptation (i.e., continuous experimentation) and implementing the concept
based on the component-based Angular framework.
author:
- first_name: Sebastian
full_name: Gottschalk, Sebastian
id: '47208'
last_name: Gottschalk
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Gregor
full_name: Engels, Gregor
id: '107'
last_name: Engels
citation:
ama: 'Gottschalk S, Yigitbas E, Engels G. Model-driven Continuous Experimentation
on Component-based Software Architectures . In: Proceedings of the 18th International
Conference on Software Architecture Companion . IEEE; 2022. doi:10.1109/ICSA-C54293.2022.00011'
apa: Gottschalk, S., Yigitbas, E., & Engels, G. (2022). Model-driven Continuous
Experimentation on Component-based Software Architectures . Proceedings of
the 18th International Conference on Software Architecture Companion . 18th
International Conference on Software Architecture , Hawaii. https://doi.org/10.1109/ICSA-C54293.2022.00011
bibtex: '@inproceedings{Gottschalk_Yigitbas_Engels_2022, title={Model-driven Continuous
Experimentation on Component-based Software Architectures }, DOI={10.1109/ICSA-C54293.2022.00011},
booktitle={Proceedings of the 18th International Conference on Software Architecture
Companion }, publisher={IEEE}, author={Gottschalk, Sebastian and Yigitbas, Enes
and Engels, Gregor}, year={2022} }'
chicago: Gottschalk, Sebastian, Enes Yigitbas, and Gregor Engels. “Model-Driven
Continuous Experimentation on Component-Based Software Architectures .” In Proceedings
of the 18th International Conference on Software Architecture Companion .
IEEE, 2022. https://doi.org/10.1109/ICSA-C54293.2022.00011.
ieee: 'S. Gottschalk, E. Yigitbas, and G. Engels, “Model-driven Continuous Experimentation
on Component-based Software Architectures ,” presented at the 18th International
Conference on Software Architecture , Hawaii, 2022, doi: 10.1109/ICSA-C54293.2022.00011.'
mla: Gottschalk, Sebastian, et al. “Model-Driven Continuous Experimentation on Component-Based
Software Architectures .” Proceedings of the 18th International Conference
on Software Architecture Companion , IEEE, 2022, doi:10.1109/ICSA-C54293.2022.00011.
short: 'S. Gottschalk, E. Yigitbas, G. Engels, in: Proceedings of the 18th International
Conference on Software Architecture Companion , IEEE, 2022.'
conference:
end_date: 2022-03-15
location: Hawaii
name: '18th International Conference on Software Architecture '
start_date: 2022-03-12
date_created: 2022-02-15T07:32:10Z
date_updated: 2022-07-04T12:34:53Z
ddc:
- '000'
department:
- _id: '66'
- _id: '534'
doi: 10.1109/ICSA-C54293.2022.00011
file:
- access_level: open_access
content_type: application/pdf
creator: sego
date_created: 2022-07-04T12:33:18Z
date_updated: 2022-07-04T12:34:52Z
file_id: '32322'
file_name: ICSA_CR.pdf
file_size: 183185
relation: main_file
file_date_updated: 2022-07-04T12:34:52Z
has_accepted_license: '1'
keyword:
- continuous experimentation
- model-driven
- component-based software architectures
- self-adaptation
language:
- iso: eng
oa: '1'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '17'
name: 'SFB 901 - C5: SFB 901 - Subproject C5'
publication: 'Proceedings of the 18th International Conference on Software Architecture
Companion '
publisher: IEEE
status: public
title: 'Model-driven Continuous Experimentation on Component-based Software Architectures '
type: conference
user_id: '47208'
year: '2022'
...
---
_id: '29673'
abstract:
- lang: eng
text: Koopman operator theory has been successfully applied to problems from various
research areas such as fluid dynamics, molecular dynamics, climate science, engineering,
and biology. Applications include detecting metastable or coherent sets, coarse-graining,
system identification, and control. There is an intricate connection between dynamical
systems driven by stochastic differential equations and quantum mechanics. In
this paper, we compare the ground-state transformation and Nelson's stochastic
mechanics and demonstrate how data-driven methods developed for the approximation
of the Koopman operator can be used to analyze quantum physics problems. Moreover,
we exploit the relationship between Schrödinger operators and stochastic control
problems to show that modern data-driven methods for stochastic control can be
used to solve the stationary or imaginary-time Schrödinger equation. Our findings
open up a new avenue towards solving Schrödinger's equation using recently developed
tools from data science.
author:
- first_name: Stefan
full_name: Klus, Stefan
last_name: Klus
- first_name: Feliks
full_name: Nüske, Feliks
id: '81513'
last_name: Nüske
orcid: 0000-0003-2444-7889
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
citation:
ama: 'Klus S, Nüske F, Peitz S. Koopman analysis of quantum systems. Journal
of Physics A: Mathematical and Theoretical. 2022;55(31):314002. doi:10.1088/1751-8121/ac7d22'
apa: 'Klus, S., Nüske, F., & Peitz, S. (2022). Koopman analysis of quantum systems.
Journal of Physics A: Mathematical and Theoretical, 55(31), 314002.
https://doi.org/10.1088/1751-8121/ac7d22'
bibtex: '@article{Klus_Nüske_Peitz_2022, title={Koopman analysis of quantum systems},
volume={55}, DOI={10.1088/1751-8121/ac7d22},
number={31}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP
Publishing Ltd.}, author={Klus, Stefan and Nüske, Feliks and Peitz, Sebastian},
year={2022}, pages={314002} }'
chicago: 'Klus, Stefan, Feliks Nüske, and Sebastian Peitz. “Koopman Analysis of
Quantum Systems.” Journal of Physics A: Mathematical and Theoretical 55,
no. 31 (2022): 314002. https://doi.org/10.1088/1751-8121/ac7d22.'
ieee: 'S. Klus, F. Nüske, and S. Peitz, “Koopman analysis of quantum systems,” Journal
of Physics A: Mathematical and Theoretical, vol. 55, no. 31, p. 314002, 2022,
doi: 10.1088/1751-8121/ac7d22.'
mla: 'Klus, Stefan, et al. “Koopman Analysis of Quantum Systems.” Journal of
Physics A: Mathematical and Theoretical, vol. 55, no. 31, IOP Publishing Ltd.,
2022, p. 314002, doi:10.1088/1751-8121/ac7d22.'
short: 'S. Klus, F. Nüske, S. Peitz, Journal of Physics A: Mathematical and Theoretical
55 (2022) 314002.'
date_created: 2022-01-31T09:49:40Z
date_updated: 2022-07-18T14:26:41Z
department:
- _id: '655'
- _id: '101'
doi: 10.1088/1751-8121/ac7d22
external_id:
arxiv:
- '2201.12062'
intvolume: ' 55'
issue: '31'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://iopscience.iop.org/article/10.1088/1751-8121/ac7d22/pdf
oa: '1'
page: '314002'
publication: 'Journal of Physics A: Mathematical and Theoretical'
publication_status: published
publisher: IOP Publishing Ltd.
status: public
title: Koopman analysis of quantum systems
type: journal_article
user_id: '47427'
volume: 55
year: '2022'
...
---
_id: '34132'
abstract:
- lang: eng
text: 'How can Knowledge In/Equity be addressed in qualitative research
by taking the idea of Open Science into account? Two projects from the Open Science
Fellows Programme by Wikimedia Deutschland will be used to illustrate how Open
Science practices can succeed in qualitative research, thereby reducing In/Equity.
In this context, In/Equity is considered as a fair and equal representation of
people, their knowledge and insights and comprehends questions about how epistemic,
structural, institutional and personal biases generate and shape knowledge as
guidance. Three questions guide this approach: firstly, what do we understand
by In/Equity in the context of knowledge production in these projects? Secondly,
who will be involved in knowledge generation and to what extent will they be valued
or unvalued? Thirdly, how can data be made accessible for re-use to enable true
participation and sharing?'
article_type: original
author:
- first_name: Isabel
full_name: Steinhardt, Isabel
last_name: Steinhardt
- first_name: Felicitas
full_name: Kruschick, Felicitas
last_name: Kruschick
citation:
ama: Steinhardt I, Kruschick F. Knowledge Equity and Open Science in qualitative
research – Practical research considerations. Research Ideas and Outcomes.
2022;8. doi:10.3897/rio.8.e86387
apa: Steinhardt, I., & Kruschick, F. (2022). Knowledge Equity and Open Science
in qualitative research – Practical research considerations. Research Ideas
and Outcomes, 8. https://doi.org/10.3897/rio.8.e86387
bibtex: '@article{Steinhardt_Kruschick_2022, title={Knowledge Equity and Open Science
in qualitative research – Practical research considerations}, volume={8}, DOI={10.3897/rio.8.e86387}, journal={Research
Ideas and Outcomes}, publisher={Pensoft Publishers}, author={Steinhardt, Isabel
and Kruschick, Felicitas}, year={2022} }'
chicago: Steinhardt, Isabel, and Felicitas Kruschick. “Knowledge Equity and Open
Science in Qualitative Research – Practical Research Considerations.” Research
Ideas and Outcomes 8 (2022). https://doi.org/10.3897/rio.8.e86387.
ieee: 'I. Steinhardt and F. Kruschick, “Knowledge Equity and Open Science in qualitative
research – Practical research considerations,” Research Ideas and Outcomes,
vol. 8, 2022, doi: 10.3897/rio.8.e86387.'
mla: Steinhardt, Isabel, and Felicitas Kruschick. “Knowledge Equity and Open Science
in Qualitative Research – Practical Research Considerations.” Research Ideas
and Outcomes, vol. 8, Pensoft Publishers, 2022, doi:10.3897/rio.8.e86387.
short: I. Steinhardt, F. Kruschick, Research Ideas and Outcomes 8 (2022).
date_created: 2022-11-22T15:55:11Z
date_updated: 2022-11-22T16:05:00Z
department:
- _id: '477'
doi: 10.3897/rio.8.e86387
intvolume: ' 8'
keyword:
- Open Science
- Knowledge Equity
- Qualitative Methods
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Research Ideas and Outcomes
publication_identifier:
issn:
- 2367-7163
publication_status: published
publisher: Pensoft Publishers
quality_controlled: '1'
status: public
title: Knowledge Equity and Open Science in qualitative research – Practical research
considerations
type: journal_article
user_id: '90339'
volume: 8
year: '2022'
...
---
_id: '29769'
abstract:
- lang: eng
text: 'Wettstreit zwischen der Entwicklung neuer Hardwaretrojaner und entsprechender
Gegenmaßnahmen beschreiten Widersacher immer raffiniertere Wege um Schaltungsentwürfe
zu infizieren und dabei selbst fortgeschrittene Test- und Verifikationsmethoden
zu überlisten. Abgesehen von den konventionellen Methoden um einen Trojaner in
eine Schaltung für ein Field-programmable Gate Array (FPGA) einzuschleusen, können
auch die Entwurfswerkzeuge heimlich kompromittiert werden um einen Angreifer dabei
zu unterstützen einen erfolgreichen Angriff durchzuführen, der zum Beispiel Fehlfunktionen
oder ungewollte Informationsabflüsse bewirken kann. Diese Dissertation beschäftigt
sich hauptsächlich mit den beiden Blickwinkeln auf Hardwaretrojaner in rekonfigurierbaren
Systemen, einerseits der Perspektive des Verteidigers mit einer Methode zur Erkennung
von Trojanern auf der Bitstromebene, und andererseits derjenigen des Angreifers
mit einer neuartigen Angriffsmethode für FPGA Trojaner. Für die Verteidigung gegen
den Trojaner ``Heimtückische LUT'''' stellen wir die allererste erfolgreiche Gegenmaßnahme
vor, die durch Verifikation mittels Proof-carrying Hardware (PCH) auf der Bitstromebene
direkt vor der Konfiguration der Hardware angewendet werden kann, und präsentieren
ein vollständiges Schema für den Entwurf und die Verifikation von Schaltungen
für iCE40 FPGAs. Für die Gegenseite führen wir einen neuen Angriff ein, welcher
bösartiges Routing im eingefügten Trojaner ausnutzt um selbst im fertigen Bitstrom
in einem inaktiven Zustand zu verbleiben: Hierdurch kann dieser neuartige Angriff
zur Zeit weder von herkömmlichen Test- und Verifikationsmethoden, noch von unserer
vorher vorgestellten Verifikation auf der Bitstromebene entdeckt werden.'
- lang: eng
text: The battle of developing hardware Trojans and corresponding countermeasures
has taken adversaries towards ingenious ways of compromising hardware designs
by circumventing even advanced testing and verification methods. Besides conventional
methods of inserting Trojans into a design by a malicious entity, the design flow
for field-programmable gate arrays (FPGAs) can also be surreptitiously compromised
to assist the attacker to perform a successful malfunctioning or information leakage
attack. This thesis mainly focuses on the two aspects of hardware Trojans in reconfigurable
systems, the defenders perspective which corresponds to the bitstream-level Trojan
detection technique, and the attackers perspective which corresponds to a novel
FPGA Trojan attack. From the defender's perspective, we introduce a first-ever
successful pre-configuration countermeasure against the ``Malicious LUT''-hardware
Trojan, by employing bitstream-level Proof-Carrying Hardware (PCH) and present
the complete design-and-verification flow for iCE40 FPGAs. Likewise, from an attackers
perspective, we present a novel attack that leverages malicious routing of the
inserted Trojan circuit to acquire a dormant state even in the generated and transmitted
bitstream. Since the Trojan is injected in a post-synthesis step and remains unconnected
in the bitstream, the presented attack can currently neither be prevented by conventional
testing and verification methods nor by bitstream-level verification techniques.
author:
- first_name: Qazi Arbab
full_name: Ahmed, Qazi Arbab
id: '72764'
last_name: Ahmed
orcid: 0000-0002-1837-2254
citation:
ama: Ahmed QA. Hardware Trojans in Reconfigurable Computing. Paderborn University,
Paderborn, Germany; 2022. doi:10.17619/UNIPB/1-1271
apa: Ahmed, Q. A. (2022). Hardware Trojans in Reconfigurable Computing. Paderborn
University, Paderborn, Germany. https://doi.org/10.17619/UNIPB/1-1271
bibtex: '@book{Ahmed_2022, place={Paderborn}, title={Hardware Trojans in Reconfigurable
Computing}, DOI={10.17619/UNIPB/1-1271},
publisher={ Paderborn University, Paderborn, Germany}, author={Ahmed, Qazi Arbab},
year={2022} }'
chicago: 'Ahmed, Qazi Arbab. Hardware Trojans in Reconfigurable Computing.
Paderborn: Paderborn University, Paderborn, Germany, 2022. https://doi.org/10.17619/UNIPB/1-1271.'
ieee: 'Q. A. Ahmed, Hardware Trojans in Reconfigurable Computing. Paderborn: Paderborn
University, Paderborn, Germany, 2022.'
mla: Ahmed, Qazi Arbab. Hardware Trojans in Reconfigurable Computing. Paderborn
University, Paderborn, Germany, 2022, doi:10.17619/UNIPB/1-1271.
short: Q.A. Ahmed, Hardware Trojans in Reconfigurable Computing, Paderborn University,
Paderborn, Germany, Paderborn, 2022.
date_created: 2022-02-07T14:02:36Z
date_updated: 2022-11-30T13:39:01Z
ddc:
- '004'
department:
- _id: '78'
doi: 10.17619/UNIPB/1-1271
has_accepted_license: '1'
keyword:
- FPGA Security
- Hardware Trojans
- Bitstream-level Trojans
- Bitstream Verification
language:
- iso: eng
main_file_link:
- open_access: '1'
url: "\turn:nbn:de:hbz:466:2-40303"
oa: '1'
place: Paderborn
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '14'
name: 'SFB 901 - C2: SFB 901 - Subproject C2'
publication_status: published
publisher: ' Paderborn University, Paderborn, Germany'
status: public
supervisor:
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
title: Hardware Trojans in Reconfigurable Computing
type: dissertation
user_id: '477'
year: '2022'
...
---
_id: '33669'
abstract:
- lang: eng
text: Far-field multi-speaker automatic speech recognition (ASR) has drawn increasing
attention in recent years. Most existing methods feature a signal processing frontend
and an ASR backend. In realistic scenarios, these modules are usually trained
separately or progressively, which suffers from either inter-module mismatch or
a complicated training process. In this paper, we propose an end-to-end multi-channel
model that jointly optimizes the speech enhancement (including speech dereverberation,
denoising, and separation) frontend and the ASR backend as a single system. To
the best of our knowledge, this is the first work that proposes to optimize dereverberation,
beamforming, and multi-speaker ASR in a fully end-to-end manner. The frontend
module consists of a weighted prediction error (WPE) based submodule for dereverberation
and a neural beamformer for denoising and speech separation. For the backend,
we adopt a widely used end-to-end (E2E) ASR architecture. It is worth noting that
the entire model is differentiable and can be optimized in a fully end-to-end
manner using only the ASR criterion, without the need of parallel signal-level
labels. We evaluate the proposed model on several multi-speaker benchmark datasets,
and experimental results show that the fully E2E ASR model can achieve competitive
performance on both noisy and reverberant conditions, with over 30% relative word
error rate (WER) reduction over the single-channel baseline systems.
author:
- first_name: Wangyou
full_name: Zhang, Wangyou
last_name: Zhang
- first_name: Xuankai
full_name: Chang, Xuankai
last_name: Chang
- first_name: Christoph
full_name: Boeddeker, Christoph
id: '40767'
last_name: Boeddeker
- first_name: Tomohiro
full_name: Nakatani, Tomohiro
last_name: Nakatani
- first_name: Shinji
full_name: Watanabe, Shinji
last_name: Watanabe
- first_name: Yanmin
full_name: Qian, Yanmin
last_name: Qian
citation:
ama: Zhang W, Chang X, Boeddeker C, Nakatani T, Watanabe S, Qian Y. End-to-End Dereverberation,
Beamforming, and Speech Recognition in A Cocktail Party. IEEE/ACM Transactions
on Audio, Speech, and Language Processing. Published online 2022. doi:10.1109/TASLP.2022.3209942
apa: Zhang, W., Chang, X., Boeddeker, C., Nakatani, T., Watanabe, S., & Qian,
Y. (2022). End-to-End Dereverberation, Beamforming, and Speech Recognition in
A Cocktail Party. IEEE/ACM Transactions on Audio, Speech, and Language Processing.
https://doi.org/10.1109/TASLP.2022.3209942
bibtex: '@article{Zhang_Chang_Boeddeker_Nakatani_Watanabe_Qian_2022, title={End-to-End
Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party}, DOI={10.1109/TASLP.2022.3209942},
journal={IEEE/ACM Transactions on Audio, Speech, and Language Processing}, author={Zhang,
Wangyou and Chang, Xuankai and Boeddeker, Christoph and Nakatani, Tomohiro and
Watanabe, Shinji and Qian, Yanmin}, year={2022} }'
chicago: Zhang, Wangyou, Xuankai Chang, Christoph Boeddeker, Tomohiro Nakatani,
Shinji Watanabe, and Yanmin Qian. “End-to-End Dereverberation, Beamforming, and
Speech Recognition in A Cocktail Party.” IEEE/ACM Transactions on Audio, Speech,
and Language Processing, 2022. https://doi.org/10.1109/TASLP.2022.3209942.
ieee: 'W. Zhang, X. Chang, C. Boeddeker, T. Nakatani, S. Watanabe, and Y. Qian,
“End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail
Party,” IEEE/ACM Transactions on Audio, Speech, and Language Processing,
2022, doi: 10.1109/TASLP.2022.3209942.'
mla: Zhang, Wangyou, et al. “End-to-End Dereverberation, Beamforming, and Speech
Recognition in A Cocktail Party.” IEEE/ACM Transactions on Audio, Speech, and
Language Processing, 2022, doi:10.1109/TASLP.2022.3209942.
short: W. Zhang, X. Chang, C. Boeddeker, T. Nakatani, S. Watanabe, Y. Qian, IEEE/ACM
Transactions on Audio, Speech, and Language Processing (2022).
date_created: 2022-10-11T07:27:51Z
date_updated: 2022-12-05T12:35:31Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.1109/TASLP.2022.3209942
file:
- access_level: open_access
content_type: application/pdf
creator: huesera
date_created: 2022-10-11T07:23:13Z
date_updated: 2022-10-11T07:23:13Z
file_id: '33674'
file_name: End-to-End_Dereverberation_Beamforming_and_Speech_Recognition_in_A_Cocktail_Party.pdf
file_size: 6167931
relation: main_file
file_date_updated: 2022-10-11T07:23:13Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: IEEE/ACM Transactions on Audio, Speech, and Language Processing
publication_identifier:
issn:
- 'Print ISSN: 2329-9290 Electronic ISSN: 2329-9304'
publication_status: published
related_material:
link:
- relation: confirmation
url: https://ieeexplore.ieee.org/abstract/document/9904314
status: public
title: End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail
Party
type: journal_article
user_id: '40767'
year: '2022'
...
---
_id: '34198'
author:
- first_name: Thiemo
full_name: Bloh, Thiemo
id: '69383'
last_name: Bloh
orcid: 0000-0002-2215-2924
- first_name: Carina
full_name: Caruso, Carina
last_name: Caruso
citation:
ama: Bloh T, Caruso C. Ein kritisch-multiperspektivischer Blick auf Forschendes
Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen. die
hochschullehre. 2022;8. doi:10.3278/HSL2221W
apa: Bloh, T., & Caruso, C. (2022). Ein kritisch-multiperspektivischer Blick
auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.
die hochschullehre, 8. https://doi.org/10.3278/HSL2221W
bibtex: '@article{Bloh_Caruso_2022, title={Ein kritisch-multiperspektivischer Blick
auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.},
volume={8}, DOI={10.3278/HSL2221W},
journal={die hochschullehre}, author={Bloh, Thiemo and Caruso, Carina}, year={2022}
}'
chicago: Bloh, Thiemo, and Carina Caruso. “Ein kritisch-multiperspektivischer Blick
auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.”
die hochschullehre 8 (2022). https://doi.org/10.3278/HSL2221W.
ieee: 'T. Bloh and C. Caruso, “Ein kritisch-multiperspektivischer Blick auf Forschendes
Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.,” die
hochschullehre, vol. 8, 2022, doi: 10.3278/HSL2221W.'
mla: Bloh, Thiemo, and Carina Caruso. “Ein kritisch-multiperspektivischer Blick
auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.”
die hochschullehre, vol. 8, 2022, doi:10.3278/HSL2221W.
short: T. Bloh, C. Caruso, die hochschullehre 8 (2022).
date_created: 2022-12-05T13:23:42Z
date_updated: 2022-12-05T13:26:41Z
department:
- _id: '4'
doi: 10.3278/HSL2221W
intvolume: ' 8'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.wbv.de/shop/Ein-kritisch-multiperspektivischer-Blick-auf-Forschendes-Lernen-in-der-Lehrkraeftebildung-HSL2221W
oa: '1'
publication: die hochschullehre
publication_status: published
quality_controlled: '1'
status: public
title: Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung.
Fragen, Erwägungen und Rekonstruktionen.
type: journal_article
user_id: '69383'
volume: 8
year: '2022'
...
---
_id: '34272'
abstract:
- lang: ger
text: Das Ultraschall-Dickdrahtbonden mit Aluminiumdraht ist ein Standardverfahren
zur elektrischenKontaktierung von Leistungshalbleitermodulen. Die steigenden Anforderungen
an die Effizienzund Zuverlässigkeit der Module haben zu technologischen Weiterentwicklungen
geführt und eswerden vermehrt Kupferdrähte mit wesentlich besseren elektrischen
und thermischen Eigenschafteneingesetzt. Hieraus resultieren durch höhere Prozesskräfte
und Ultraschallleistung neueHerausforderungen bei der Prozessentwicklung; hierfür
wird ein Simulationsmodell zur Verbesserungder Prozessentwicklung entwickelt.In
Ultraschall-Drahtbondversuchen mit 400 m Aluminium und Kupfer Drähten wurde der
Einflussder Prozessparameter auf die Bondqualität untersucht; diese Ergebnisse
und zusätzliche Messungender Drahtdeformation und Schwingungen wurden für die
Formulierung der Anforderungenund zur Validierung der Ergebnisse des Simulationsmodells
genutzt.Es wurde ein Prozessmodell, basierend auf einer Co-Simulation zwischen
MATLAB und ANSYS,entwickelt; hierbei wurden die phyiskalischen Phänomene wie die
Ultraschall Werkstoffentfestigung,der Verbindungsaufbau und die dynamischen Systemeigenschaften
abgebildet.Basierend auf einer Zug-Druck-Prüfmaschine wurde ein Prüfstand zur
Identifikation der Modellparameterentwickelt. In zusätzlichen Druckversuchen mit
den Bonddrähten mit und ohneUltraschallanregung wurde die Reduktion der Umformkräfte
unter Ultraschalleinfluss untersucht.Mit dem entwickelten Prozessmodell wurden
die Parameterstudien aus den Ultraschall-Drahtbondversuchensimuliert und direkt
mit den experimentellen Ergebnissen verglichen, wobei sich einerelativ gute Übereinstimmung
zwischen Simulation und Messung sowohl für Aluminium, als auchfür Kupfer, erzielen
ließ.
- lang: eng
text: Ultrasonic heavy wire bonding with aluminium wire is a standard process to
produce electricalcontacts in power semiconductor modules. The increasing demands
on the efficiency and reliabilityof the modules have led to technological developments
and copper wires with significantlybetter electrical and thermal properties are
used more often nowadays. This results in new challengesin process development
due to higher process forces and ultrasonic power; for this purpose,a simulation
model is developed to improve process development.Ultrasonic wire bonding tests
with 400 m aluminium and copper wires were carried out to investigatethe influence
of the process parameters on the bond quality; these results and additionalmeasurements
of wire deformation and vibrations were used to define the requirements for themodel
and validate the results of the simulation.A process model based on a co-simulation
was developed between MATLAB and ANSYS; thephysical phenomena such as ultrasonic
softening of the wire material, bond formation and dynamicbehaviour of the components
were considered.Based on a tensile-compression testing machine, a test rig was
developed to identify the modelparameters. In additional compression tests with
the wires with and without ultrasonic excitation,the reduction of the forming
forces under ultrasonic influence was characterised.With the developed process
model, the parameter studies from the ultrasonic wire bond testswere simulated
and directly compared with the experimental results; a relative good agreementbetween
simulation and measurement could be achieved for both aluminium and copper.
author:
- first_name: Reinhard
full_name: Schemmel, Reinhard
id: '28647'
last_name: Schemmel
citation:
ama: Schemmel R. Enhanced Process Development by Simulation of Ultrasonic Heavy
Wire Bonding. Vol 13. Shaker; 2022. doi:10.17619/UNIPB/1-1280
apa: Schemmel, R. (2022). Enhanced process development by simulation of ultrasonic
heavy wire bonding (Vol. 13). Shaker. https://doi.org/10.17619/UNIPB/1-1280
bibtex: '@book{Schemmel_2022, series={Schriften des Lehrstuhls für Dynamik und Mechatronik},
title={Enhanced process development by simulation of ultrasonic heavy wire bonding},
volume={13}, DOI={10.17619/UNIPB/1-1280},
publisher={Shaker}, author={Schemmel, Reinhard}, year={2022}, collection={Schriften
des Lehrstuhls für Dynamik und Mechatronik} }'
chicago: Schemmel, Reinhard. Enhanced Process Development by Simulation of Ultrasonic
Heavy Wire Bonding. Vol. 13. Schriften Des Lehrstuhls Für Dynamik Und Mechatronik.
Shaker, 2022. https://doi.org/10.17619/UNIPB/1-1280.
ieee: R. Schemmel, Enhanced process development by simulation of ultrasonic heavy
wire bonding, vol. 13. Shaker, 2022.
mla: Schemmel, Reinhard. Enhanced Process Development by Simulation of Ultrasonic
Heavy Wire Bonding. Shaker, 2022, doi:10.17619/UNIPB/1-1280.
short: R. Schemmel, Enhanced Process Development by Simulation of Ultrasonic Heavy
Wire Bonding, Shaker, 2022.
date_created: 2022-12-07T14:03:17Z
date_updated: 2022-12-07T14:15:23Z
department:
- _id: '151'
doi: 10.17619/UNIPB/1-1280
intvolume: ' 13'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://digital.ub.uni-paderborn.de/hs/id/6223291
oa: '1'
page: '174'
publication_identifier:
isbn:
- "\t978-3-8440-8527-3"
publication_status: published
publisher: Shaker
related_material:
link:
- relation: dissertation_contains
url: https://www.shaker.eu/en/content/catalogue/index.asp?lang=en&ID=8&ISBN=978-3-8440-8527-3&search=yes
series_title: Schriften des Lehrstuhls für Dynamik und Mechatronik
status: public
supervisor:
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
title: Enhanced process development by simulation of ultrasonic heavy wire bonding
type: dissertation
user_id: '210'
volume: 13
year: '2022'
...
---
_id: '34316'
abstract:
- lang: ger
text: Eines der Lernziele des Physikstudiums stellt der Erwerb literaler Fähigkeiten
für das Verfassen wissenschaftlicher Arbeiten dar. Die Student:innen werden allerdings
im Rahmen ihres Studiums bisher kaum systematisch beim Erwerb dieser Fähigkeiten
unterstützt. Eine Übungsgelegenheit für das Verfassen von Texten nach wissenschaftlichem
Vorbild stellt das Laborpraktikum dar, in dem die Student:innen zu den absolvierten
Experimenten Laborberichte verfassen. Im Paderborner Physik Praktikum 3P wurden
in den letzten Jahren vier unterschiedliche Unterstützungsangebote für das Erlernen
des wissenschaftlichen Schreibens entwickelt und mittels Zufriedenheitswerten
evaluiert. In dem Beitrag werden die vier Angebote auf inhaltlicher Ebene hinsichtlich
der Lernwirksamkeit mittels einer schriftproduktbasierten Evaluation analysiert.
Durch die vergleichende Analyse können Potenziale und Grenzen der Angebote diskutiert
und Implikationen für die Gestaltung von Unterstützungsangeboten zum Erlernen
des wissenschaftlichen Schreibens in der Physik abgeleitet werden.
article_type: original
author:
- first_name: Anna Brigitte
full_name: Bauer, Anna Brigitte
id: '24755'
last_name: Bauer
orcid: 0000-0002-1742-3099
- first_name: Simon Zacharias
full_name: Lahme, Simon Zacharias
last_name: Lahme
- first_name: Marc
full_name: Sacher, Marc
id: '26883'
last_name: Sacher
citation:
ama: Bauer AB, Lahme SZ, Sacher M. Potenziale und Grenzen von Unterstützungsmaßnahmen
zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P. PhyDid
A - Physik und Didaktik in Schule und Hochschule . 2022;21(1):23-34.
apa: Bauer, A. B., Lahme, S. Z., & Sacher, M. (2022). Potenziale und Grenzen
von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik
Praktikum 3P. PhyDid A - Physik und Didaktik in Schule und Hochschule ,
21(1), 23–34.
bibtex: '@article{Bauer_Lahme_Sacher_2022, title={Potenziale und Grenzen von Unterstützungsmaßnahmen
zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P}, volume={21},
number={1}, journal={PhyDid A - Physik und Didaktik in Schule und Hochschule },
author={Bauer, Anna Brigitte and Lahme, Simon Zacharias and Sacher, Marc}, year={2022},
pages={23–34} }'
chicago: 'Bauer, Anna Brigitte, Simon Zacharias Lahme, and Marc Sacher. “Potenziale
und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner
Physik Praktikum 3P.” PhyDid A - Physik und Didaktik in Schule und Hochschule
21, no. 1 (2022): 23–34.'
ieee: A. B. Bauer, S. Z. Lahme, and M. Sacher, “Potenziale und Grenzen von Unterstützungsmaßnahmen
zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P,” PhyDid
A - Physik und Didaktik in Schule und Hochschule , vol. 21, no. 1, pp. 23–34,
2022.
mla: Bauer, Anna Brigitte, et al. “Potenziale und Grenzen von Unterstützungsmaßnahmen
zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P.” PhyDid
A - Physik und Didaktik in Schule und Hochschule , vol. 21, no. 1, 2022, pp.
23–34.
short: A.B. Bauer, S.Z. Lahme, M. Sacher, PhyDid A - Physik und Didaktik in Schule
und Hochschule 21 (2022) 23–34.
date_created: 2022-12-09T15:45:40Z
date_updated: 2022-12-09T15:46:02Z
department:
- _id: '299'
- _id: '576'
- _id: '651'
intvolume: ' 21'
issue: '1'
keyword:
- Laborpraktikum
- Schreiben
language:
- iso: ger
main_file_link:
- open_access: '1'
url: http://phydid.physik.fu-berlin.de/index.php/phydid/article/view/1200
oa: '1'
page: 23-34
publication: 'PhyDid A - Physik und Didaktik in Schule und Hochschule '
publication_identifier:
unknown:
- 1865-5521
publication_status: published
quality_controlled: '1'
status: public
title: Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben
im Paderborner Physik Praktikum 3P
type: journal_article
user_id: '24755'
volume: 21
year: '2022'
...
---
_id: '34417'
abstract:
- lang: eng
text: Given strict emission targets and legal requirements, especially in the automotive
industry, environmentally friendly and simultaneously versatile applicable production
technologies are gaining importance. In this regard, the use of mechanical joining
processes, such as clinching, enable assembly sheet metals to achieve strength
properties similar to those of established thermal joining technologies. However,
to guarantee a high reliability of the generated joint connection, the selection
of a best-fitting joining technology as well as the meaningful description of
individual joint properties is essential. In the context of clinching, few contributions
have to date investigated the metamodel-based estimation and optimization of joint
characteristics, such as neck or interlock thickness, by applying machine learning
and genetic algorithms. Therefore, several regression models have been trained
on varying databases and amounts of input parameters. However, if product engineers
can only provide limited data for a new joining task, such as incomplete information
on applied joining tool dimensions, previously trained metamodels often reach
their limits. This often results in a significant loss of prediction quality and
leads to increasing uncertainties and inaccuracies within the metamodel-based
design of a clinch joint connection. Motivated by this, the presented contribution
investigates different machine learning algorithms regarding their ability to
achieve a satisfying estimation accuracy on limited input data applying a statistically
based feature selection method. Through this, it is possible to identify which
regression models are suitable to predict clinch joint characteristics considering
only a minimum set of required input features. Thus, in addition to the opportunity
to decrease the training effort as well as the model complexity, the subsequent
formulation of design equations can pave the way to a more versatile application
and reuse of pretrained metamodels on varying tool configurations for a given
clinch joining task.
author:
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
citation:
ama: Zirngibl C, Schleich B, Wartzack S. Estimation of Clinch Joint Characteristics
Based on Limited Input Data Using Pre-Trained Metamodels. AI. 2022;3(4):990-1006.
doi:10.3390/ai3040059
apa: Zirngibl, C., Schleich, B., & Wartzack, S. (2022). Estimation of Clinch
Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels.
AI, 3(4), 990–1006. https://doi.org/10.3390/ai3040059
bibtex: '@article{Zirngibl_Schleich_Wartzack_2022, title={Estimation of Clinch Joint
Characteristics Based on Limited Input Data Using Pre-Trained Metamodels}, volume={3},
DOI={10.3390/ai3040059}, number={4},
journal={AI}, publisher={MDPI AG}, author={Zirngibl, Christoph and Schleich, Benjamin
and Wartzack, Sandro}, year={2022}, pages={990–1006} }'
chicago: 'Zirngibl, Christoph, Benjamin Schleich, and Sandro Wartzack. “Estimation
of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained
Metamodels.” AI 3, no. 4 (2022): 990–1006. https://doi.org/10.3390/ai3040059.'
ieee: 'C. Zirngibl, B. Schleich, and S. Wartzack, “Estimation of Clinch Joint Characteristics
Based on Limited Input Data Using Pre-Trained Metamodels,” AI, vol. 3,
no. 4, pp. 990–1006, 2022, doi: 10.3390/ai3040059.'
mla: Zirngibl, Christoph, et al. “Estimation of Clinch Joint Characteristics Based
on Limited Input Data Using Pre-Trained Metamodels.” AI, vol. 3, no. 4,
MDPI AG, 2022, pp. 990–1006, doi:10.3390/ai3040059.
short: C. Zirngibl, B. Schleich, S. Wartzack, AI 3 (2022) 990–1006.
date_created: 2022-12-14T12:32:29Z
date_updated: 2022-12-14T13:43:53Z
doi: 10.3390/ai3040059
intvolume: ' 3'
issue: '4'
keyword:
- Industrial and Manufacturing Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2673-2688/3/4/59
oa: '1'
page: 990-1006
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
publication: AI
publication_identifier:
issn:
- 2673-2688
publication_status: published
publisher: MDPI AG
status: public
title: Estimation of Clinch Joint Characteristics Based on Limited Input Data Using
Pre-Trained Metamodels
type: journal_article
user_id: '7850'
volume: 3
year: '2022'
...
---
_id: '34549'
author:
- first_name: Korinna
full_name: Schönhärl, Korinna
id: '89037'
last_name: Schönhärl
orcid: 0000-0002-7967-3261
citation:
ama: 'Schönhärl K. Review on: Daniel Benedikt Stienen: Verkauftes Vaterland. Sehepunkte.
2022;22(11).'
apa: 'Schönhärl, K. (2022). Review on: Daniel Benedikt Stienen: Verkauftes Vaterland.
In Sehepunkte (Vol. 22, Issue 11).'
bibtex: '@article{Schönhärl_2022, title={Review on: Daniel Benedikt Stienen: Verkauftes
Vaterland}, volume={22}, number={11}, journal={Sehepunkte}, author={Schönhärl,
Korinna}, year={2022} }'
chicago: 'Schönhärl, Korinna. “Review on: Daniel Benedikt Stienen: Verkauftes Vaterland.”
Sehepunkte, 2022.'
ieee: 'K. Schönhärl, “Review on: Daniel Benedikt Stienen: Verkauftes Vaterland,”
Sehepunkte, vol. 22, no. 11. 2022.'
mla: 'Schönhärl, Korinna. “Review on: Daniel Benedikt Stienen: Verkauftes Vaterland.”
Sehepunkte, vol. 22, no. 11, 2022.'
short: K. Schönhärl, Sehepunkte 22 (2022).
date_created: 2022-12-19T11:01:46Z
date_updated: 2022-12-19T11:01:55Z
department:
- _id: '445'
intvolume: ' 22'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.sehepunkte.de /2022/11/36727.html
oa: '1'
publication: Sehepunkte
publication_date: 2022-11-15
quality_controlled: '1'
status: public
title: 'Review on: Daniel Benedikt Stienen: Verkauftes Vaterland'
type: review
user_id: '89037'
volume: 22
year: '2022'
...
---
_id: '34554'
author:
- first_name: Korinna
full_name: Schönhärl, Korinna
id: '89037'
last_name: Schönhärl
orcid: 0000-0002-7967-3261
citation:
ama: 'Schönhärl K. Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice
Approach . HSozKult. Published online 2022.'
apa: 'Schönhärl, K. (2022). Review on: Sven Steinmo: Willing to Pay? A Reasonable
Choice Approach . In HSozKult.'
bibtex: '@article{Schönhärl_2022, title={Review on: Sven Steinmo: Willing to Pay?
A Reasonable Choice Approach }, journal={HSozKult}, author={Schönhärl, Korinna},
year={2022} }'
chicago: 'Schönhärl, Korinna. “Review on: Sven Steinmo: Willing to Pay? A Reasonable
Choice Approach .” HSozKult, 2022.'
ieee: 'K. Schönhärl, “Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice
Approach ,” HSozKult. 2022.'
mla: 'Schönhärl, Korinna. “Review on: Sven Steinmo: Willing to Pay? A Reasonable
Choice Approach .” HSozKult, 2022.'
short: K. Schönhärl, HSozKult (2022).
date_created: 2022-12-19T11:13:08Z
date_updated: 2022-12-19T11:13:13Z
department:
- _id: '445'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: HSozKult
publication_date: 2022-6-23
quality_controlled: '1'
related_material:
link:
- relation: confirmation
url: https://www.hsozkult.de/publicationreview/id/reb-115613
status: public
title: 'Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach '
type: review
user_id: '89037'
year: '2022'
...
---
_id: '34618'
abstract:
- lang: eng
text: "In this article, we show how second-order derivative information can be\r\nincorporated
into gradient sampling methods for nonsmooth optimization. The\r\nsecond-order
information we consider is essentially the set of coefficients of\r\nall second-order
Taylor expansions of the objective in a closed ball around a\r\ngiven point. Based
on this concept, we define a model of the objective as the\r\nmaximum of these
Taylor expansions. Iteratively minimizing this model\r\n(constrained to the closed
ball) results in a simple descent method, for which\r\nwe prove convergence to
minimal points in case the objective is convex. To\r\nobtain an implementable
method, we construct an approximation scheme for the\r\nsecond-order information
based on sampling objective values, gradients and\r\nHessian matrices at finitely
many points. Using a set of test problems, we\r\ncompare the resulting method
to five other available solvers. Considering the\r\nnumber of function evaluations,
the results suggest that the method we propose\r\nis superior to the standard
gradient sampling method, and competitive compared\r\nto other methods."
author:
- first_name: Bennet
full_name: Gebken, Bennet
id: '32643'
last_name: Gebken
citation:
ama: Gebken B. Using second-order information in gradient sampling methods for
nonsmooth optimization. arXiv:221004579. Published online 2022.
apa: Gebken, B. (2022). Using second-order information in gradient sampling methods
for nonsmooth optimization. In arXiv:2210.04579.
bibtex: '@article{Gebken_2022, title={Using second-order information in gradient
sampling methods for nonsmooth optimization}, journal={arXiv:2210.04579}, author={Gebken,
Bennet}, year={2022} }'
chicago: Gebken, Bennet. “Using Second-Order Information in Gradient Sampling Methods
for Nonsmooth Optimization.” ArXiv:2210.04579, 2022.
ieee: B. Gebken, “Using second-order information in gradient sampling methods for
nonsmooth optimization,” arXiv:2210.04579. 2022.
mla: Gebken, Bennet. “Using Second-Order Information in Gradient Sampling Methods
for Nonsmooth Optimization.” ArXiv:2210.04579, 2022.
short: B. Gebken, ArXiv:2210.04579 (2022).
date_created: 2022-12-20T15:25:17Z
date_updated: 2022-12-20T15:28:54Z
department:
- _id: '101'
external_id:
arxiv:
- '2210.04579'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/pdf/2210.04579
oa: '1'
publication: arXiv:2210.04579
status: public
title: Using second-order information in gradient sampling methods for nonsmooth
optimization
type: preprint
user_id: '32643'
year: '2022'
...
---
_id: '29220'
abstract:
- lang: eng
text: "Modern services often comprise several components, such as chained virtual
network functions, microservices, or\r\nmachine learning functions. Providing
such services requires to decide how often to instantiate each component, where
to place these instances in the network, how to chain them and route traffic through
them. \r\nTo overcome limitations of conventional, hardwired heuristics, deep
reinforcement learning (DRL) approaches for self-learning network and service
management have emerged recently. These model-free DRL approaches are more flexible
but typically learn tabula rasa, i.e., disregard existing understanding of networks,
services, and their coordination. \r\n\r\nInstead, we propose FutureCoord, a novel
model-based AI approach that leverages existing understanding of networks and
services for more efficient and effective coordination without time-intensive
training. FutureCoord combines Monte Carlo Tree Search with a stochastic traffic
model. This allows FutureCoord to estimate the impact of future incoming traffic
and effectively optimize long-term effects, taking fluctuating demand and Quality
of Service (QoS) requirements into account. Our extensive evaluation based on
real-world network topologies, services, and traffic traces indicates that FutureCoord
clearly outperforms state-of-the-art model-free and model-based approaches with
up to 51% higher flow success ratios."
author:
- first_name: Stefan
full_name: Werner, Stefan
last_name: Werner
- first_name: Stefan Balthasar
full_name: Schneider, Stefan Balthasar
id: '35343'
last_name: Schneider
orcid: 0000-0001-8210-4011
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Werner S, Schneider SB, Karl H. Use What You Know: Network and Service Coordination
Beyond Certainty. In: IEEE/IFIP Network Operations and Management Symposium
(NOMS). IEEE; 2022.'
apa: 'Werner, S., Schneider, S. B., & Karl, H. (2022). Use What You Know: Network
and Service Coordination Beyond Certainty. IEEE/IFIP Network Operations and
Management Symposium (NOMS). IEEE/IFIP Network Operations and Management Symposium
(NOMS), Budapest.'
bibtex: '@inproceedings{Werner_Schneider_Karl_2022, title={Use What You Know: Network
and Service Coordination Beyond Certainty}, booktitle={IEEE/IFIP Network Operations
and Management Symposium (NOMS)}, publisher={IEEE}, author={Werner, Stefan and
Schneider, Stefan Balthasar and Karl, Holger}, year={2022} }'
chicago: 'Werner, Stefan, Stefan Balthasar Schneider, and Holger Karl. “Use What
You Know: Network and Service Coordination Beyond Certainty.” In IEEE/IFIP
Network Operations and Management Symposium (NOMS). IEEE, 2022.'
ieee: 'S. Werner, S. B. Schneider, and H. Karl, “Use What You Know: Network and
Service Coordination Beyond Certainty,” presented at the IEEE/IFIP Network Operations
and Management Symposium (NOMS), Budapest, 2022.'
mla: 'Werner, Stefan, et al. “Use What You Know: Network and Service Coordination
Beyond Certainty.” IEEE/IFIP Network Operations and Management Symposium (NOMS),
IEEE, 2022.'
short: 'S. Werner, S.B. Schneider, H. Karl, in: IEEE/IFIP Network Operations and
Management Symposium (NOMS), IEEE, 2022.'
conference:
end_date: 2022-04-29
location: Budapest
name: IEEE/IFIP Network Operations and Management Symposium (NOMS)
start_date: 2022-04-25
date_created: 2022-01-11T08:43:26Z
date_updated: 2022-01-11T08:44:04Z
ddc:
- '004'
department:
- _id: '75'
file:
- access_level: open_access
content_type: application/pdf
creator: stschn
date_created: 2022-01-11T08:39:57Z
date_updated: 2022-01-11T08:39:57Z
file_id: '29222'
file_name: author_version.pdf
file_size: 528653
relation: main_file
file_date_updated: 2022-01-11T08:39:57Z
has_accepted_license: '1'
keyword:
- network management
- service management
- AI
- Monte Carlo Tree Search
- model-based
- QoS
language:
- iso: eng
oa: '1'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '16'
name: 'SFB 901 - C4: SFB 901 - Subproject C4'
publication: IEEE/IFIP Network Operations and Management Symposium (NOMS)
publisher: IEEE
quality_controlled: '1'
status: public
title: 'Use What You Know: Network and Service Coordination Beyond Certainty'
type: conference
user_id: '35343'
year: '2022'
...
---
_id: '23415'
author:
- first_name: Martina
full_name: Sperling, Martina
id: '76460'
last_name: Sperling
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Sperling M, Schryen G. Decision Support for Disaster Relief: Coordinating
Spontaneous Volunteers. European Journal of Operational Research (EJOR).
2022;299(2):690-705.'
apa: 'Sperling, M., & Schryen, G. (2022). Decision Support for Disaster Relief:
Coordinating Spontaneous Volunteers. European Journal of Operational Research
(EJOR), 299(2), 690–705.'
bibtex: '@article{Sperling_Schryen_2022, title={Decision Support for Disaster Relief:
Coordinating Spontaneous Volunteers}, volume={299}, number={2}, journal={European
Journal of Operational Research (EJOR)}, author={Sperling, Martina and Schryen,
Guido}, year={2022}, pages={690–705} }'
chicago: 'Sperling, Martina, and Guido Schryen. “Decision Support for Disaster Relief:
Coordinating Spontaneous Volunteers.” European Journal of Operational Research
(EJOR) 299, no. 2 (2022): 690–705.'
ieee: 'M. Sperling and G. Schryen, “Decision Support for Disaster Relief: Coordinating
Spontaneous Volunteers,” European Journal of Operational Research (EJOR),
vol. 299, no. 2, pp. 690–705, 2022.'
mla: 'Sperling, Martina, and Guido Schryen. “Decision Support for Disaster Relief:
Coordinating Spontaneous Volunteers.” European Journal of Operational Research
(EJOR), vol. 299, no. 2, 2022, pp. 690–705.'
short: M. Sperling, G. Schryen, European Journal of Operational Research (EJOR)
299 (2022) 690–705.
date_created: 2021-08-16T13:47:12Z
date_updated: 2022-01-19T14:55:21Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2021-08-16T13:46:57Z
date_updated: 2021-08-16T13:46:57Z
file_id: '23416'
file_name: CoordinatingSpontaneousVolunteers.pdf
file_size: 1275918
relation: main_file
file_date_updated: 2021-08-16T13:46:57Z
has_accepted_license: '1'
intvolume: ' 299'
issue: '2'
language:
- iso: eng
oa: '1'
page: 690 - 705
publication: European Journal of Operational Research (EJOR)
status: public
title: 'Decision Support for Disaster Relief: Coordinating Spontaneous Volunteers'
type: journal_article
user_id: '61579'
volume: 299
year: '2022'
...
---
_id: '29539'
abstract:
- lang: eng
text: Explainable Artificial Intelligence (XAI) is currently an important topic
for the application of Machine Learning (ML) in high-stakes decision scenarios.
Related research focuses on evaluating ML algorithms in terms of interpretability.
However, providing a human understandable explanation of an intelligent system
does not only relate to the used ML algorithm. The data and features used also
have a considerable impact on interpretability. In this paper, we develop a taxonomy
for describing XAI systems based on aspects about the algorithm and data. The
proposed taxonomy gives researchers and practitioners opportunities to describe
and evaluate current XAI systems with respect to interpretability and guides the
future development of this class of systems.
author:
- first_name: Jan-Peter
full_name: Kucklick, Jan-Peter
id: '77066'
last_name: Kucklick
citation:
ama: 'Kucklick J-P. Towards a model- and data-focused taxonomy of XAI systems. In:
Wirtschaftsinformatik 2022 Proceedings. ; 2022.'
apa: Kucklick, J.-P. (2022). Towards a model- and data-focused taxonomy of XAI systems.
Wirtschaftsinformatik 2022 Proceedings. Wirtschaftsinformatik 2022 (WI22),
Nürnberg (online).
bibtex: '@inproceedings{Kucklick_2022, title={Towards a model- and data-focused
taxonomy of XAI systems}, booktitle={Wirtschaftsinformatik 2022 Proceedings},
author={Kucklick, Jan-Peter}, year={2022} }'
chicago: Kucklick, Jan-Peter. “Towards a Model- and Data-Focused Taxonomy of XAI
Systems.” In Wirtschaftsinformatik 2022 Proceedings, 2022.
ieee: J.-P. Kucklick, “Towards a model- and data-focused taxonomy of XAI systems,”
presented at the Wirtschaftsinformatik 2022 (WI22), Nürnberg (online), 2022.
mla: Kucklick, Jan-Peter. “Towards a Model- and Data-Focused Taxonomy of XAI Systems.”
Wirtschaftsinformatik 2022 Proceedings, 2022.
short: 'J.-P. Kucklick, in: Wirtschaftsinformatik 2022 Proceedings, 2022.'
conference:
end_date: 2022-02-23
location: Nürnberg (online)
name: Wirtschaftsinformatik 2022 (WI22)
start_date: 2022-02-21
date_created: 2022-01-26T08:22:03Z
date_updated: 2022-01-26T08:24:30Z
department:
- _id: '195'
- _id: '196'
keyword:
- Explainable Artificial Intelligence
- XAI
- Interpretability
- Decision Support Systems
- Taxonomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://aisel.aisnet.org/cgi/viewcontent.cgi?article=1056&context=wi2022
oa: '1'
publication: Wirtschaftsinformatik 2022 Proceedings
status: public
title: Towards a model- and data-focused taxonomy of XAI systems
type: conference
user_id: '77066'
year: '2022'
...
---
_id: '29763'
abstract:
- lang: eng
text: "Modern-day communication has become more and more digital. While this comes
with many advantages such as a more efficient economy, it has also created more
and more opportunities for various adversaries to manipulate communication or
eavesdrop on it. The Snowden revelations in 2013 further highlighted the seriousness
of these threats. To protect the communication of people, companies, and states
from such threats, we require cryptography with strong security guarantees.\r\nDifferent
applications may require different security properties from cryptographic schemes.
For most applications, however, so-called adaptive security is considered a reasonable
minimal requirement of security. Cryptographic schemes with adaptive security
remain secure in the presence of an adversary that can corrupt communication partners
to respond to messages of the adversaries choice, while the adversary may choose
the messages based on previously observed interactions.\r\nWhile cryptography
is associated the most with encryption, this is only one of many primitives that
are essential for the security of digital interactions. This thesis presents novel
identity-based encryption (IBE) schemes and verifiable random functions (VRFs)
that achieve adaptive security as outlined above. Moreover, the cryptographic
schemes presented in this thesis are proven secure in the standard model. That
is without making use of idealized models like the random oracle model."
author:
- first_name: David
full_name: Niehues, David
id: '36113'
last_name: Niehues
citation:
ama: Niehues D. More Efficient Techniques for Adaptively-Secure Cryptography.;
2022. doi:10.25926/rdtq-jw45
apa: Niehues, D. (2022). More Efficient Techniques for Adaptively-Secure Cryptography.
https://doi.org/10.25926/rdtq-jw45
bibtex: '@book{Niehues_2022, title={More Efficient Techniques for Adaptively-Secure
Cryptography}, DOI={10.25926/rdtq-jw45},
author={Niehues, David}, year={2022} }'
chicago: Niehues, David. More Efficient Techniques for Adaptively-Secure Cryptography,
2022. https://doi.org/10.25926/rdtq-jw45.
ieee: D. Niehues, More Efficient Techniques for Adaptively-Secure Cryptography.
2022.
mla: Niehues, David. More Efficient Techniques for Adaptively-Secure Cryptography.
2022, doi:10.25926/rdtq-jw45.
short: D. Niehues, More Efficient Techniques for Adaptively-Secure Cryptography,
2022.
date_created: 2022-02-07T13:29:07Z
date_updated: 2022-02-07T13:32:28Z
ddc:
- '000'
department:
- _id: '558'
doi: 10.25926/rdtq-jw45
file:
- access_level: closed
content_type: application/pdf
creator: davnie
date_created: 2022-02-07T13:26:05Z
date_updated: 2022-02-07T13:26:05Z
file_id: '29764'
file_name: de2107.pdf
file_size: 1542089
relation: main_file
success: 1
file_date_updated: 2022-02-07T13:26:05Z
has_accepted_license: '1'
keyword:
- public-key cryptography
- lattices
- pairings
- verifiable random functions
- identity-based encryption
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://elpub.bib.uni-wuppertal.de/servlets/DerivateServlet/Derivate-14686/de2107.pdf
oa: '1'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '13'
name: 'SFB 901 - C1: SFB 901 - Subproject C1'
publication_status: published
status: public
supervisor:
- first_name: Tibor
full_name: Jager, Tibor
id: '64669'
last_name: Jager
- first_name: Anja
full_name: Lehmann, Anja
last_name: Lehmann
title: More Efficient Techniques for Adaptively-Secure Cryptography
type: dissertation
user_id: '36113'
year: '2022'
...