---
_id: '19738'
author:
- first_name: Marc
  full_name: Wende, Marc
  id: '71302'
  last_name: Wende
- first_name: Kai
  full_name: Philippi, Kai
  last_name: Philippi
- first_name: Eugeny
  full_name: Kenig, Eugeny
  id: '665'
  last_name: Kenig
citation:
  ama: 'Wende M, Philippi K, Kenig E. Numerische Simulation von Gravidestillationsapparaten
    zur Trennung eines binären Ethanol/Wasser-Gemisches. In: <i>10. ProcessNet-Jahrestagung
    Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>. 10. ProcessNet-Jahrestagung
    und 34. DECHEMA-Jahrestagung der Biotechnologen . ; 2020.'
  apa: Wende, M., Philippi, K., &#38; Kenig, E. (2020). Numerische Simulation von
    Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches.
    <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen
    </i>. 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen
    2020, Aachen.
  bibtex: '@inproceedings{Wende_Philippi_Kenig_2020, series={10. ProcessNet-Jahrestagung
    und 34. DECHEMA-Jahrestagung der Biotechnologen }, title={Numerische Simulation
    von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches},
    booktitle={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen
    }, author={Wende, Marc and Philippi, Kai and Kenig, Eugeny}, year={2020}, collection={10.
    ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen } }'
  chicago: Wende, Marc, Kai Philippi, and Eugeny Kenig. “Numerische Simulation von
    Gravidestillationsapparaten Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.”
    In <i>10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen
    </i>. 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen
    , 2020.
  ieee: M. Wende, K. Philippi, and E. Kenig, “Numerische Simulation von Gravidestillationsapparaten
    zur Trennung eines binären Ethanol/Wasser-Gemisches,” presented at the 10. ProcessNet-Jahrestagung
    und 34. DECHEMA-Jahrestagung der Biotechnologen 2020, Aachen, 2020.
  mla: Wende, Marc, et al. “Numerische Simulation von Gravidestillationsapparaten
    Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.” <i>10. ProcessNet-Jahrestagung
    Und 34. DECHEMA-Jahrestagung Der Biotechnologen </i>, 2020.
  short: 'M. Wende, K. Philippi, E. Kenig, in: 10. ProcessNet-Jahrestagung Und 34.
    DECHEMA-Jahrestagung Der Biotechnologen , 2020.'
conference:
  end_date: 24.09.2020
  location: Aachen
  name: 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen
    2020
  start_date: 21.09.2020
date_created: 2020-09-28T14:09:47Z
date_updated: 2022-01-06T06:54:11Z
department:
- _id: '9'
- _id: '145'
language:
- iso: eng
publication: '10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen '
series_title: '10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen '
status: public
title: Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären
  Ethanol/Wasser-Gemisches
type: conference
user_id: '71302'
year: '2020'
...
---
_id: '19739'
author:
- first_name: Daniel
  full_name: Szopinski, Daniel
  id: '36372'
  last_name: Szopinski
citation:
  ama: 'Szopinski D. Active Business Model Development Tools: Design Requirements.
    In: <i>Proceedings of the 15th International Conference on Design Science Research
    in Information Systems and Technology (DESRIST)</i>. ; 2020.'
  apa: 'Szopinski, D. (2020). Active Business Model Development Tools: Design Requirements.
    In <i>Proceedings of the 15th International Conference on Design Science Research
    in Information Systems and Technology (DESRIST)</i>. Virtual Conference/Workshop.'
  bibtex: '@inproceedings{Szopinski_2020, title={Active Business Model Development
    Tools: Design Requirements}, booktitle={Proceedings of the 15th International
    Conference on Design Science Research in Information Systems and Technology (DESRIST)},
    author={Szopinski, Daniel}, year={2020} }'
  chicago: 'Szopinski, Daniel. “Active Business Model Development Tools: Design Requirements.”
    In <i>Proceedings of the 15th International Conference on Design Science Research
    in Information Systems and Technology (DESRIST)</i>, 2020.'
  ieee: 'D. Szopinski, “Active Business Model Development Tools: Design Requirements,”
    in <i>Proceedings of the 15th International Conference on Design Science Research
    in Information Systems and Technology (DESRIST)</i>, Virtual Conference/Workshop,
    2020.'
  mla: 'Szopinski, Daniel. “Active Business Model Development Tools: Design Requirements.”
    <i>Proceedings of the 15th International Conference on Design Science Research
    in Information Systems and Technology (DESRIST)</i>, 2020.'
  short: 'D. Szopinski, in: Proceedings of the 15th International Conference on Design
    Science Research in Information Systems and Technology (DESRIST), 2020.'
conference:
  location: Virtual Conference/Workshop
  name: 15th International Conference on Design Science Research in Information Systems
    and Technology (DESRIST)
date_created: 2020-09-28T14:23:55Z
date_updated: 2022-01-06T06:54:11Z
ddc:
- '040'
department:
- _id: '276'
file:
- access_level: closed
  content_type: application/pdf
  creator: dsz
  date_created: 2020-09-29T07:46:30Z
  date_updated: 2020-09-29T07:46:30Z
  file_id: '19762'
  file_name: DESRIST2020_ABMDT_REVISED.pdf
  file_size: 194137
  relation: main_file
  success: 1
file_date_updated: 2020-09-29T07:46:30Z
has_accepted_license: '1'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '17'
  name: SFB 901 - Subproject C5
publication: Proceedings of the 15th International Conference on Design Science Research
  in Information Systems and Technology (DESRIST)
status: public
title: 'Active Business Model Development Tools: Design Requirements'
type: conference
user_id: '16205'
year: '2020'
...
---
_id: '19741'
author:
- first_name: Daniel
  full_name: Szopinski, Daniel
  id: '36372'
  last_name: Szopinski
citation:
  ama: 'Szopinski D. Exploring design principles for stimuli in business model development
    tools. In: <i>Proceedings of the 41st International Conference on Information
    Systems (ICIS)</i>. ; 2020.'
  apa: Szopinski, D. (2020). Exploring design principles for stimuli in business model
    development tools. In <i>Proceedings of the 41st International Conference on Information
    Systems (ICIS)</i>. Virtual Conference/Workshop.
  bibtex: '@inproceedings{Szopinski_2020, title={Exploring design principles for stimuli
    in business model development tools}, booktitle={Proceedings of the 41st International
    Conference on Information Systems (ICIS)}, author={Szopinski, Daniel}, year={2020}
    }'
  chicago: Szopinski, Daniel. “Exploring Design Principles for Stimuli in Business
    Model Development Tools.” In <i>Proceedings of the 41st International Conference
    on Information Systems (ICIS)</i>, 2020.
  ieee: D. Szopinski, “Exploring design principles for stimuli in business model development
    tools,” in <i>Proceedings of the 41st International Conference on Information
    Systems (ICIS)</i>, Virtual Conference/Workshop, 2020.
  mla: Szopinski, Daniel. “Exploring Design Principles for Stimuli in Business Model
    Development Tools.” <i>Proceedings of the 41st International Conference on Information
    Systems (ICIS)</i>, 2020.
  short: 'D. Szopinski, in: Proceedings of the 41st International Conference on Information
    Systems (ICIS), 2020.'
conference:
  location: Virtual Conference/Workshop
  name: 41st International Conference on Information Systems (ICIS)
date_created: 2020-09-28T14:28:27Z
date_updated: 2022-01-06T06:54:12Z
ddc:
- '040'
department:
- _id: '276'
file:
- access_level: closed
  content_type: application/pdf
  creator: dsz
  date_created: 2020-10-27T15:05:49Z
  date_updated: 2020-10-27T15:05:49Z
  file_id: '20216'
  file_name: ICIS2020_BMDT_ShortPaper_RevisedManuscript_final.pdf
  file_size: 292196
  relation: main_file
  success: 1
file_date_updated: 2020-10-27T15:05:49Z
has_accepted_license: '1'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '17'
  name: SFB 901 - Subproject C5
publication: Proceedings of the 41st International Conference on Information Systems
  (ICIS)
status: public
title: Exploring design principles for stimuli in business model development tools
type: conference
user_id: '16205'
year: '2020'
...
---
_id: '19743'
author:
- first_name: Jan
  full_name: Ditter, Jan
  id: '22488'
  last_name: Ditter
citation:
  ama: Ditter J. <i>Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen bei
    tiefen Temperaturen</i>.; 2020.
  apa: Ditter, J. (2020). <i>Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen
    bei tiefen Temperaturen</i>.
  bibtex: '@book{Ditter_2020, title={Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen
    bei tiefen Temperaturen}, author={Ditter, Jan}, year={2020} }'
  chicago: Ditter, Jan. <i>Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen
    bei tiefen Temperaturen</i>, 2020.
  ieee: J. Ditter, <i>Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen
    bei tiefen Temperaturen</i>. 2020.
  mla: Ditter, Jan. <i>Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen
    bei tiefen Temperaturen</i>. 2020.
  short: J. Ditter, Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen bei
    tiefen Temperaturen, 2020.
date_created: 2020-09-28T14:38:12Z
date_updated: 2022-01-06T06:54:12Z
department:
- _id: '157'
language:
- iso: ger
publication_identifier:
  isbn:
  - 978-3-8440-7530-4
publication_status: published
status: public
supervisor:
- first_name: Gerson
  full_name: Meschut, Gerson
  last_name: Meschut
title: Methodenentwicklung zum Entfügen von Stahl-Klebverbindungen bei tiefen Temperaturen
type: dissertation
user_id: '22488'
year: '2020'
...
---
_id: '19753'
author:
- first_name: Jan
  full_name: Ditter, Jan
  id: '22488'
  last_name: Ditter
- first_name: Tobias
  full_name: Aubel, Tobias
  last_name: Aubel
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Ditter J, Aubel T, Meschut G. Simple Determination of Fast Curing Parameters
    for Bonded Structures. <i>adhesion ADHESIVES + SEALANTS</i>. 2020;(1).
  apa: Ditter, J., Aubel, T., &#38; Meschut, G. (2020). Simple Determination of Fast
    Curing Parameters for Bonded Structures. <i>Adhesion ADHESIVES + SEALANTS</i>,
    (1).
  bibtex: '@article{Ditter_Aubel_Meschut_2020, title={Simple Determination of Fast
    Curing Parameters for Bonded Structures}, number={1}, journal={adhesion ADHESIVES
    + SEALANTS}, author={Ditter, Jan and Aubel, Tobias and Meschut, Gerson}, year={2020}
    }'
  chicago: Ditter, Jan, Tobias Aubel, and Gerson Meschut. “Simple Determination of
    Fast Curing Parameters for Bonded Structures.” <i>Adhesion ADHESIVES + SEALANTS</i>,
    no. 1 (2020).
  ieee: J. Ditter, T. Aubel, and G. Meschut, “Simple Determination of Fast Curing
    Parameters for Bonded Structures,” <i>adhesion ADHESIVES + SEALANTS</i>, no. 1,
    2020.
  mla: Ditter, Jan, et al. “Simple Determination of Fast Curing Parameters for Bonded
    Structures.” <i>Adhesion ADHESIVES + SEALANTS</i>, no. 1, 2020.
  short: J. Ditter, T. Aubel, G. Meschut, Adhesion ADHESIVES + SEALANTS (2020).
date_created: 2020-09-29T07:03:09Z
date_updated: 2022-01-06T06:54:12Z
department:
- _id: '157'
issue: '1'
language:
- iso: eng
publication: adhesion ADHESIVES + SEALANTS
status: public
title: Simple Determination of Fast Curing Parameters for Bonded Structures
type: journal_article
user_id: '22488'
year: '2020'
...
---
_id: '19782'
author:
- first_name: Michelle
  full_name: Müller, Michelle
  id: '50286'
  last_name: Müller
- first_name: Jürgen
  full_name: Neumann, Jürgen
  id: '32456'
  last_name: Neumann
- first_name: Dominik
  full_name: Gutt, Dominik
  id: '14368'
  last_name: Gutt
- first_name: Dennis
  full_name: Kundisch, Dennis
  id: '21117'
  last_name: Kundisch
citation:
  ama: 'Müller M, Neumann J, Gutt D, Kundisch D. Toss a Coin to your Host - How Guests
    End up Paying for the Cost of Regulatory Policies. In: <i>Proceedings of the 41th
    International Conference on Information Systems (ICIS)</i>. ; 2020.'
  apa: Müller, M., Neumann, J., Gutt, D., &#38; Kundisch, D. (2020). Toss a Coin to
    your Host - How Guests End up Paying for the Cost of Regulatory Policies. In <i>Proceedings
    of the 41th International Conference on Information Systems (ICIS)</i>. Virtual
    Conference/Workshop.
  bibtex: '@inproceedings{Müller_Neumann_Gutt_Kundisch_2020, title={Toss a Coin to
    your Host - How Guests End up Paying for the Cost of Regulatory Policies}, booktitle={Proceedings
    of the 41th International Conference on Information Systems (ICIS)}, author={Müller,
    Michelle and Neumann, Jürgen and Gutt, Dominik and Kundisch, Dennis}, year={2020}
    }'
  chicago: Müller, Michelle, Jürgen Neumann, Dominik Gutt, and Dennis Kundisch. “Toss
    a Coin to Your Host - How Guests End up Paying for the Cost of Regulatory Policies.”
    In <i>Proceedings of the 41th International Conference on Information Systems
    (ICIS)</i>, 2020.
  ieee: M. Müller, J. Neumann, D. Gutt, and D. Kundisch, “Toss a Coin to your Host
    - How Guests End up Paying for the Cost of Regulatory Policies,” in <i>Proceedings
    of the 41th International Conference on Information Systems (ICIS)</i>, Virtual
    Conference/Workshop, 2020.
  mla: Müller, Michelle, et al. “Toss a Coin to Your Host - How Guests End up Paying
    for the Cost of Regulatory Policies.” <i>Proceedings of the 41th International
    Conference on Information Systems (ICIS)</i>, 2020.
  short: 'M. Müller, J. Neumann, D. Gutt, D. Kundisch, in: Proceedings of the 41th
    International Conference on Information Systems (ICIS), 2020.'
conference:
  location: Virtual Conference/Workshop
  name: 41th International Conference on Information Systems (ICIS)
date_created: 2020-09-30T09:08:41Z
date_updated: 2022-01-06T06:54:12Z
department:
- _id: '276'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '8'
  name: SFB 901 - Subproject A4
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '17'
  name: SFB 901 - Subproject C5
publication: Proceedings of the 41th International Conference on Information Systems
  (ICIS)
status: public
title: Toss a Coin to your Host - How Guests End up Paying for the Cost of Regulatory
  Policies
type: conference
user_id: '16205'
year: '2020'
...
---
_id: '19823'
abstract:
- lang: eng
  text: 'Individual grains of chalcopyrite solar cell absorbers can facet in different
    crystallographic directions at their surfaces. To gain a deeper understanding
    of the junction formation in these devices, we correlate variations in the surface
    facet orientation with the defect electronic properties. We use a combined analytical
    approach based on scanning tunneling spectroscopy (STS), scanning electron microscopy,
    and electron back scatter diffraction (EBSD), where we perform these experiments
    on identical surface areas as small as 2 × 2 µm2 with a lateral resolution well
    below 50 nm. The topography of the absorber surfaces indicates two main morphological
    features: micro-faceted, long basalt-like columns and their short nano-faceted
    terminations. Our STS results reveal that the long columns exhibit spectral signatures
    typical for the presence of pronounced oxidation-induced surface dipoles in conjunction
    with an increased density of electronic defect levels. In contrast, the nano-faceted
    terminations of the basalt-like columns are largely passivated in terms of electronic
    defect levels within the band gap region. Corresponding crystallographic data
    based on EBSD experiments show that the surface of the basalt-like columns can
    be assigned to intrinsically polar facet orientations, while the passivated terminations
    are assigned to non-polar planes. Ab-initio calculations suggest that the polar
    surfaces are more prone to oxidation and resulting O-induced defects, in comparison
    to non-polar planes. Our results emphasize the correlation between morphology,
    surface facet orientations and surface electronic properties. Furthermore, this
    work aids in gaining a fundamental understanding of oxidation induced lateral
    inhomogeneities in view of the p-n junction formation in chalcopyrite thin-film
    solar cells.'
author:
- first_name: Amala
  full_name: Elizabeth, Amala
  last_name: Elizabeth
- first_name: Hauke
  full_name: Conradi, Hauke
  last_name: Conradi
- first_name: Sudhir
  full_name: K. Sahoo, Sudhir
  last_name: K. Sahoo
- first_name: Tim
  full_name: Kodalle, Tim
  last_name: Kodalle
- first_name: Christian
  full_name: A. Kaufmann, Christian
  last_name: A. Kaufmann
- first_name: Thomas
  full_name: Kühne, Thomas
  id: '49079'
  last_name: Kühne
- first_name: Hossein
  full_name: Mirhosseini, Hossein
  id: '71051'
  last_name: Mirhosseini
  orcid: https://orcid.org/0000-0001-6179-1545
- first_name: Daniel
  full_name: Abou-Ras, Daniel
  last_name: Abou-Ras
- first_name: Harry
  full_name: Mönig, Harry
  last_name: Mönig
citation:
  ama: Elizabeth A, Conradi H, K. Sahoo S, et al. Correlating facet orientation, defect-level
    density and dipole layer formation at the surface of polycrystalline CuInSe2 thin
    films. <i>Acta Materialia</i>. 2020;200. doi:<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>
  apa: Elizabeth, A., Conradi, H., K. Sahoo, S., Kodalle, T., A. Kaufmann, C., Kühne,
    T., … Mönig, H. (2020). Correlating facet orientation, defect-level density and
    dipole layer formation at the surface of polycrystalline CuInSe2 thin films. <i>Acta
    Materialia</i>, <i>200</i>. <a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>
  bibtex: '@article{Elizabeth_Conradi_K. Sahoo_Kodalle_A. Kaufmann_Kühne_Mirhosseini_Abou-Ras_Mönig_2020,
    title={Correlating facet orientation, defect-level density and dipole layer formation
    at the surface of polycrystalline CuInSe2 thin films}, volume={200}, DOI={<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>},
    journal={Acta Materialia}, author={Elizabeth, Amala and Conradi, Hauke and K.
    Sahoo, Sudhir and Kodalle, Tim and A. Kaufmann, Christian and Kühne, Thomas and
    Mirhosseini, Hossein and Abou-Ras, Daniel and Mönig, Harry}, year={2020} }'
  chicago: Elizabeth, Amala, Hauke Conradi, Sudhir K. Sahoo, Tim Kodalle, Christian
    A. Kaufmann, Thomas Kühne, Hossein Mirhosseini, Daniel Abou-Ras, and Harry Mönig.
    “Correlating Facet Orientation, Defect-Level Density and Dipole Layer Formation
    at the Surface of Polycrystalline CuInSe2 Thin Films.” <i>Acta Materialia</i>
    200 (2020). <a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>.
  ieee: A. Elizabeth <i>et al.</i>, “Correlating facet orientation, defect-level density
    and dipole layer formation at the surface of polycrystalline CuInSe2 thin films,”
    <i>Acta Materialia</i>, vol. 200, 2020.
  mla: Elizabeth, Amala, et al. “Correlating Facet Orientation, Defect-Level Density
    and Dipole Layer Formation at the Surface of Polycrystalline CuInSe2 Thin Films.”
    <i>Acta Materialia</i>, vol. 200, 2020, doi:<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>.
  short: A. Elizabeth, H. Conradi, S. K. Sahoo, T. Kodalle, C. A. Kaufmann, T. Kühne,
    H. Mirhosseini, D. Abou-Ras, H. Mönig, Acta Materialia 200 (2020).
date_created: 2020-10-01T09:19:55Z
date_updated: 2022-01-06T06:54:13Z
department:
- _id: '613'
doi: https://doi.org/10.1016/j.actamat.2020.09.028
intvolume: '       200'
keyword:
- Chalcopyrite absorber
- Scanning tunneling spectroscopy
- Electron backscatter diffraction
- Density functional theory
- Surface dipole
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Acta Materialia
publication_identifier:
  issn:
  - 1359-6454
status: public
title: Correlating facet orientation, defect-level density and dipole layer formation
  at the surface of polycrystalline CuInSe2 thin films
type: journal_article
user_id: '71692'
volume: 200
year: '2020'
...
---
_id: '19864'
article_type: original
author:
- first_name: Maurice
  full_name: Meyer, Maurice
  id: '77201'
  last_name: Meyer
  orcid: 0000-0003-0606-7321
- first_name: Maximilian
  full_name: Frank, Maximilian
  last_name: Frank
- first_name: Melina
  full_name: Massmann, Melina
  last_name: Massmann
- first_name: Roman
  full_name: Dumitrescu, Roman
  id: '16190'
  last_name: Dumitrescu
citation:
  ama: Meyer M, Frank M, Massmann M, Dumitrescu R. Research and Consulting in Data-Driven
    Strategic Product Planning. <i>Proceedings of The 11th International Multi-Conference
    on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>. 2020.
  apa: Meyer, M., Frank, M., Massmann, M., &#38; Dumitrescu, R. (2020). Research and
    Consulting in Data-Driven Strategic Product Planning. <i>Proceedings of The 11th
    International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC
    2020)</i>.
  bibtex: '@article{Meyer_Frank_Massmann_Dumitrescu_2020, title={Research and Consulting
    in Data-Driven Strategic Product Planning}, journal={Proceedings of The 11th International
    Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)}, author={Meyer,
    Maurice and Frank, Maximilian and Massmann, Melina and Dumitrescu, Roman}, year={2020}
    }'
  chicago: Meyer, Maurice, Maximilian Frank, Melina Massmann, and Roman Dumitrescu.
    “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Proceedings
    of The 11th International Multi-Conference on Complexity, Informatics and Cybernetics
    (IMCIC 2020)</i>, 2020.
  ieee: M. Meyer, M. Frank, M. Massmann, and R. Dumitrescu, “Research and Consulting
    in Data-Driven Strategic Product Planning,” <i>Proceedings of The 11th International
    Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020)</i>,
    2020.
  mla: Meyer, Maurice, et al. “Research and Consulting in Data-Driven Strategic Product
    Planning.” <i>Proceedings of The 11th International Multi-Conference on Complexity,
    Informatics and Cybernetics (IMCIC 2020)</i>, 2020.
  short: M. Meyer, M. Frank, M. Massmann, R. Dumitrescu, Proceedings of The 11th International
    Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2020) (2020).
date_created: 2020-10-02T16:19:50Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '563'
language:
- iso: eng
publication: Proceedings of The 11th International Multi-Conference on Complexity,
  Informatics and Cybernetics (IMCIC 2020)
status: public
title: Research and Consulting in Data-Driven Strategic Product Planning
type: journal_article
user_id: '77201'
year: '2020'
...
---
_id: '19866'
article_type: original
author:
- first_name: Maurice
  full_name: Meyer, Maurice
  id: '77201'
  last_name: Meyer
  orcid: 0000-0003-0606-7321
- first_name: Maximilian
  full_name: Frank, Maximilian
  last_name: Frank
- first_name: Melina
  full_name: Massmann, Melina
  last_name: Massmann
- first_name: Roman
  full_name: Dumitrescu, Roman
  id: '16190'
  last_name: Dumitrescu
citation:
  ama: Meyer M, Frank M, Massmann M, Dumitrescu R. Research and Consulting in Data-Driven
    Strategic Product Planning. <i>Journal of Systemics, Cybernetics and Informatics</i>.
    2020;18(2):55-61.
  apa: Meyer, M., Frank, M., Massmann, M., &#38; Dumitrescu, R. (2020). Research and
    Consulting in Data-Driven Strategic Product Planning. <i>Journal of Systemics,
    Cybernetics and Informatics</i>, <i>18</i>(2), 55–61.
  bibtex: '@article{Meyer_Frank_Massmann_Dumitrescu_2020, title={Research and Consulting
    in Data-Driven Strategic Product Planning}, volume={18}, number={2}, journal={Journal
    of Systemics, Cybernetics and Informatics}, author={Meyer, Maurice and Frank,
    Maximilian and Massmann, Melina and Dumitrescu, Roman}, year={2020}, pages={55–61}
    }'
  chicago: 'Meyer, Maurice, Maximilian Frank, Melina Massmann, and Roman Dumitrescu.
    “Research and Consulting in Data-Driven Strategic Product Planning.” <i>Journal
    of Systemics, Cybernetics and Informatics</i> 18, no. 2 (2020): 55–61.'
  ieee: M. Meyer, M. Frank, M. Massmann, and R. Dumitrescu, “Research and Consulting
    in Data-Driven Strategic Product Planning,” <i>Journal of Systemics, Cybernetics
    and Informatics</i>, vol. 18, no. 2, pp. 55–61, 2020.
  mla: Meyer, Maurice, et al. “Research and Consulting in Data-Driven Strategic Product
    Planning.” <i>Journal of Systemics, Cybernetics and Informatics</i>, vol. 18,
    no. 2, 2020, pp. 55–61.
  short: M. Meyer, M. Frank, M. Massmann, R. Dumitrescu, Journal of Systemics, Cybernetics
    and Informatics 18 (2020) 55–61.
date_created: 2020-10-02T16:21:47Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '563'
intvolume: '        18'
issue: '2'
language:
- iso: eng
page: 55-61
publication: Journal of Systemics, Cybernetics and Informatics
status: public
title: Research and Consulting in Data-Driven Strategic Product Planning
type: journal_article
user_id: '77201'
volume: 18
year: '2020'
...
---
_id: '19895'
author:
- first_name: Sören
  full_name: Steiger, Sören
  last_name: Steiger
- first_name: Matthias
  full_name: Pelster, Matthias
  id: '67265'
  last_name: Pelster
  orcid: ' https://orcid.org/0000-0001-5740-2420'
citation:
  ama: Steiger S, Pelster M. Social interactions and asset pricing bubbles. <i>Journal
    of Economic Behavior &#38; Organization</i>. 2020;179:503-522. doi:<a href="https://doi.org/10.1016/j.jebo.2020.09.020">10.1016/j.jebo.2020.09.020</a>
  apa: Steiger, S., &#38; Pelster, M. (2020). Social interactions and asset pricing
    bubbles. <i>Journal of Economic Behavior &#38; Organization</i>, <i>179</i>, 503–522.
    <a href="https://doi.org/10.1016/j.jebo.2020.09.020">https://doi.org/10.1016/j.jebo.2020.09.020</a>
  bibtex: '@article{Steiger_Pelster_2020, title={Social interactions and asset pricing
    bubbles}, volume={179}, DOI={<a href="https://doi.org/10.1016/j.jebo.2020.09.020">10.1016/j.jebo.2020.09.020</a>},
    journal={Journal of Economic Behavior &#38; Organization}, author={Steiger, Sören
    and Pelster, Matthias}, year={2020}, pages={503–522} }'
  chicago: 'Steiger, Sören, and Matthias Pelster. “Social Interactions and Asset Pricing
    Bubbles.” <i>Journal of Economic Behavior &#38; Organization</i> 179 (2020): 503–22.
    <a href="https://doi.org/10.1016/j.jebo.2020.09.020">https://doi.org/10.1016/j.jebo.2020.09.020</a>.'
  ieee: S. Steiger and M. Pelster, “Social interactions and asset pricing bubbles,”
    <i>Journal of Economic Behavior &#38; Organization</i>, vol. 179, pp. 503–522,
    2020.
  mla: Steiger, Sören, and Matthias Pelster. “Social Interactions and Asset Pricing
    Bubbles.” <i>Journal of Economic Behavior &#38; Organization</i>, vol. 179, 2020,
    pp. 503–22, doi:<a href="https://doi.org/10.1016/j.jebo.2020.09.020">10.1016/j.jebo.2020.09.020</a>.
  short: S. Steiger, M. Pelster, Journal of Economic Behavior &#38; Organization 179
    (2020) 503–522.
date_created: 2020-10-06T06:17:16Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '186'
- _id: '578'
doi: 10.1016/j.jebo.2020.09.020
intvolume: '       179'
language:
- iso: eng
page: 503-522
publication: Journal of Economic Behavior & Organization
publication_identifier:
  issn:
  - 0167-2681
publication_status: published
status: public
title: Social interactions and asset pricing bubbles
type: journal_article
user_id: '67265'
volume: 179
year: '2020'
...
---
_id: '19899'
abstract:
- lang: eng
  text: "Most existing robot formation problems seek a target formation of a certain\r\nminimal
    and, thus, efficient structure. Examples include the Gathering\r\nand the Chain-Formation
    problem. In this work, we study formation problems that\r\ntry to reach a maximal
    structure, supporting for example an efficient\r\ncoverage in exploration scenarios.
    A recent example is the NASA Shapeshifter\r\nproject, which describes how the
    robots form a relay chain along which gathered\r\ndata from extraterrestrial cave
    explorations may be sent to a home base.\r\n  As a first step towards understanding
    such maximization tasks, we introduce\r\nand study the Max-Chain-Formation problem,
    where $n$ robots are ordered along a\r\nwinding, potentially self-intersecting
    chain and must form a connected,\r\nstraight line of maximal length connecting
    its two endpoints. We propose and\r\nanalyze strategies in a discrete and in a
    continuous time model. In the\r\ndiscrete case, we give a complete analysis if
    all robots are initially\r\ncollinear, showing that the worst-case time to reach
    an\r\n$\\varepsilon$-approximation is upper bounded by $\\mathcal{O}(n^2 \\cdot
    \\log\r\n(n/\\varepsilon))$ and lower bounded by $\\Omega(n^2 \\cdot~\\log\r\n(1/\\varepsilon))$.
    If one endpoint of the chain remains stationary, this result\r\ncan be extended
    to the non-collinear case. If both endpoints move, we identify\r\na family of
    instances whose runtime is unbounded. For the continuous model, we\r\ngive a strategy
    with an optimal runtime bound of $\\Theta(n)$. Avoiding an\r\nunbounded runtime
    similar to the discrete case relies crucially on a\r\ncounter-intuitive aspect
    of the strategy: slowing down the endpoints while all\r\nother robots move at
    full speed. Surprisingly, we can show that a similar trick\r\ndoes not work in
    the discrete model."
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Peter
  full_name: Kling, Peter
  last_name: Kling
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Kling P, Knollmann T, Meyer auf der Heide F. A Discrete and Continuous
    Study of the Max-Chain-Formation Problem – Slow Down to Speed Up. In: Devismes  S,
    Mittal N, eds. <i>Stabilization, Safety, and Security of Distributed Systems -
    22nd International Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020,
    Proceedings</i>. Vol 12514. Lecture Notes in Computer Science (LNCS). Springer;
    2020:65-80. doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>'
  apa: Castenow, J., Kling, P., Knollmann, T., &#38; Meyer auf der Heide, F. (2020).
    A Discrete and Continuous Study of the Max-Chain-Formation Problem – Slow Down
    to Speed Up. In S. Devismes  &#38; N. Mittal (Eds.), <i>Stabilization, Safety,
    and Security of Distributed Systems - 22nd International Symposium, SSS 2020,
    Austin, Texas, USA, November 18-21, 2020, Proceedings</i> (Vol. 12514, pp. 65–80).
    Springer. <a href="https://doi.org/10.1007/978-3-030-64348-5_6">https://doi.org/10.1007/978-3-030-64348-5_6</a>
  bibtex: '@inproceedings{Castenow_Kling_Knollmann_Meyer auf der Heide_2020, series={Lecture
    Notes in Computer Science (LNCS)}, title={A Discrete and Continuous Study of the
    Max-Chain-Formation Problem – Slow Down to Speed Up}, volume={12514}, DOI={<a
    href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>},
    booktitle={Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings}, publisher={Springer},
    author={Castenow, Jannik and Kling, Peter and Knollmann, Till and Meyer auf der
    Heide, Friedhelm}, editor={Devismes , Stéphane  and Mittal, Neeraj Editors}, year={2020},
    pages={65–80}, collection={Lecture Notes in Computer Science (LNCS)} }'
  chicago: Castenow, Jannik, Peter Kling, Till Knollmann, and Friedhelm Meyer auf
    der Heide. “A Discrete and Continuous Study of the Max-Chain-Formation Problem
    – Slow Down to Speed Up.” In <i>Stabilization, Safety, and Security of Distributed
    Systems - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November
    18-21, 2020, Proceedings</i>, edited by Stéphane  Devismes  and Neeraj  Mittal,
    12514:65–80. Lecture Notes in Computer Science (LNCS). Springer, 2020. <a href="https://doi.org/10.1007/978-3-030-64348-5_6">https://doi.org/10.1007/978-3-030-64348-5_6</a>.
  ieee: J. Castenow, P. Kling, T. Knollmann, and F. Meyer auf der Heide, “A Discrete
    and Continuous Study of the Max-Chain-Formation Problem – Slow Down to Speed Up,”
    in <i>Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings</i>,
    2020, vol. 12514, pp. 65–80.
  mla: Castenow, Jannik, et al. “A Discrete and Continuous Study of the Max-Chain-Formation
    Problem – Slow Down to Speed Up.” <i>Stabilization, Safety, and Security of Distributed
    Systems - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November
    18-21, 2020, Proceedings</i>, edited by Stéphane  Devismes  and Neeraj  Mittal,
    vol. 12514, Springer, 2020, pp. 65–80, doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>.
  short: 'J. Castenow, P. Kling, T. Knollmann, F. Meyer auf der Heide, in: S. Devismes
    , N. Mittal (Eds.), Stabilization, Safety, and Security of Distributed Systems
    - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November 18-21,
    2020, Proceedings, Springer, 2020, pp. 65–80.'
date_created: 2020-10-06T07:27:10Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '63'
doi: 10.1007/978-3-030-64348-5_6
editor:
- first_name: 'Stéphane '
  full_name: 'Devismes , Stéphane '
  last_name: 'Devismes '
- first_name: 'Neeraj '
  full_name: 'Mittal, Neeraj '
  last_name: Mittal
external_id:
  arxiv:
  - '2010.02043 '
intvolume: '     12514'
language:
- iso: eng
page: 65-80
publication: Stabilization, Safety, and Security of Distributed Systems - 22nd International
  Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings
publication_identifier:
  isbn:
  - 978-3-030-64347-8
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science (LNCS)
status: public
title: A Discrete and Continuous Study of the Max-Chain-Formation Problem – Slow Down
  to Speed Up
type: conference
user_id: '38705'
volume: 12514
year: '2020'
...
---
_id: '19938'
abstract:
- lang: eng
  text: 'We show that symplectic integrators preserve bifurcations of Hamiltonian
    boundary value problems and that nonsymplectic integrators do not. We provide
    a universal description of the breaking of umbilic bifurcations by nonysmplectic
    integrators. We discover extra structure induced from certain types of boundary
    value problems, including classical Dirichlet problems, that is useful to locate
    bifurcations. Geodesics connecting two points are an example of a Hamiltonian
    boundary value problem, and we introduce the jet-RATTLE method, a symplectic integrator
    that easily computes geodesics and their bifurcations. Finally, we study the periodic
    pitchfork bifurcation, a codimension-1 bifurcation arising in integrable Hamiltonian
    systems. It is not preserved by either symplectic on nonsymplectic integrators,
    but in some circumstances symplecticity greatly reduces the error. '
article_type: original
author:
- first_name: Robert I
  full_name: McLachlan, Robert I
  last_name: McLachlan
- first_name: Christian
  full_name: Offen, Christian
  id: '85279'
  last_name: Offen
  orcid: https://orcid.org/0000-0002-5940-8057
citation:
  ama: McLachlan RI, Offen C. Preservation of Bifurcations of Hamiltonian Boundary
    Value Problems Under Discretisation. <i>Foundations of Computational Mathematics</i>.
    2020;20(6):1363-1400. doi:<a href="https://doi.org/10.1007/s10208-020-09454-z">10.1007/s10208-020-09454-z</a>
  apa: McLachlan, R. I., &#38; Offen, C. (2020). Preservation of Bifurcations of Hamiltonian
    Boundary Value Problems Under Discretisation. <i>Foundations of Computational
    Mathematics</i>, <i>20</i>(6), 1363–1400. <a href="https://doi.org/10.1007/s10208-020-09454-z">https://doi.org/10.1007/s10208-020-09454-z</a>
  bibtex: '@article{McLachlan_Offen_2020, title={Preservation of Bifurcations of Hamiltonian
    Boundary Value Problems Under Discretisation}, volume={20}, DOI={<a href="https://doi.org/10.1007/s10208-020-09454-z">10.1007/s10208-020-09454-z</a>},
    number={6}, journal={Foundations of Computational Mathematics}, author={McLachlan,
    Robert I and Offen, Christian}, year={2020}, pages={1363–1400} }'
  chicago: 'McLachlan, Robert I, and Christian Offen. “Preservation of Bifurcations
    of Hamiltonian Boundary Value Problems Under Discretisation.” <i>Foundations of
    Computational Mathematics</i> 20, no. 6 (2020): 1363–1400. <a href="https://doi.org/10.1007/s10208-020-09454-z">https://doi.org/10.1007/s10208-020-09454-z</a>.'
  ieee: R. I. McLachlan and C. Offen, “Preservation of Bifurcations of Hamiltonian
    Boundary Value Problems Under Discretisation,” <i>Foundations of Computational
    Mathematics</i>, vol. 20, no. 6, pp. 1363–1400, 2020.
  mla: McLachlan, Robert I., and Christian Offen. “Preservation of Bifurcations of
    Hamiltonian Boundary Value Problems Under Discretisation.” <i>Foundations of Computational
    Mathematics</i>, vol. 20, no. 6, 2020, pp. 1363–400, doi:<a href="https://doi.org/10.1007/s10208-020-09454-z">10.1007/s10208-020-09454-z</a>.
  short: R.I. McLachlan, C. Offen, Foundations of Computational Mathematics 20 (2020)
    1363–1400.
date_created: 2020-10-06T16:31:46Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '636'
doi: 10.1007/s10208-020-09454-z
extern: '1'
intvolume: '        20'
issue: '6'
language:
- iso: eng
main_file_link:
- url: https://rdcu.be/b79aB
page: 1363-1400
publication: Foundations of Computational Mathematics
publication_status: published
status: public
title: Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation
type: journal_article
user_id: '85279'
volume: 20
year: '2020'
...
---
_id: '19939'
article_type: original
author:
- first_name: Lisa Maria
  full_name: Kreusser, Lisa Maria
  last_name: Kreusser
- first_name: Robert I
  full_name: McLachlan, Robert I
  last_name: McLachlan
- first_name: Christian
  full_name: Offen, Christian
  id: '85279'
  last_name: Offen
  orcid: https://orcid.org/0000-0002-5940-8057
citation:
  ama: Kreusser LM, McLachlan RI, Offen C. Detection of high codimensional bifurcations
    in variational PDEs. <i>Nonlinearity</i>. 2020;33(5):2335-2363. doi:<a href="https://doi.org/10.1088/1361-6544/ab7293">10.1088/1361-6544/ab7293</a>
  apa: Kreusser, L. M., McLachlan, R. I., &#38; Offen, C. (2020). Detection of high
    codimensional bifurcations in variational PDEs. <i>Nonlinearity</i>, <i>33</i>(5),
    2335–2363. <a href="https://doi.org/10.1088/1361-6544/ab7293">https://doi.org/10.1088/1361-6544/ab7293</a>
  bibtex: '@article{Kreusser_McLachlan_Offen_2020, title={Detection of high codimensional
    bifurcations in variational PDEs}, volume={33}, DOI={<a href="https://doi.org/10.1088/1361-6544/ab7293">10.1088/1361-6544/ab7293</a>},
    number={5}, journal={Nonlinearity}, author={Kreusser, Lisa Maria and McLachlan,
    Robert I and Offen, Christian}, year={2020}, pages={2335–2363} }'
  chicago: 'Kreusser, Lisa Maria, Robert I McLachlan, and Christian Offen. “Detection
    of High Codimensional Bifurcations in Variational PDEs.” <i>Nonlinearity</i> 33,
    no. 5 (2020): 2335–63. <a href="https://doi.org/10.1088/1361-6544/ab7293">https://doi.org/10.1088/1361-6544/ab7293</a>.'
  ieee: L. M. Kreusser, R. I. McLachlan, and C. Offen, “Detection of high codimensional
    bifurcations in variational PDEs,” <i>Nonlinearity</i>, vol. 33, no. 5, pp. 2335–2363,
    2020.
  mla: Kreusser, Lisa Maria, et al. “Detection of High Codimensional Bifurcations
    in Variational PDEs.” <i>Nonlinearity</i>, vol. 33, no. 5, 2020, pp. 2335–63,
    doi:<a href="https://doi.org/10.1088/1361-6544/ab7293">10.1088/1361-6544/ab7293</a>.
  short: L.M. Kreusser, R.I. McLachlan, C. Offen, Nonlinearity 33 (2020) 2335–2363.
date_created: 2020-10-06T16:32:04Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '636'
doi: 10.1088/1361-6544/ab7293
extern: '1'
intvolume: '        33'
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1088/1361-6544/ab7293
oa: '1'
page: 2335-2363
publication: Nonlinearity
publication_identifier:
  issn:
  - 0951-7715
  - 1361-6544
publication_status: published
status: public
title: Detection of high codimensional bifurcations in variational PDEs
type: journal_article
user_id: '85279'
volume: 33
year: '2020'
...
---
_id: '19947'
abstract:
- lang: eng
  text: "Ordinary differential equations (ODEs) and partial differential equations
    (PDEs) arise\r\nin most scientific disciplines that make use of mathematical techniques.
    As exact solutions are in general not computable, numerical methods are used to
    obtain approximate\r\nsolutions. In order to draw valid conclusions from numerical
    computations, it is crucial\r\nto understand which qualitative aspects numerical
    solutions have in common with the\r\nexact solution. Symplecticity is a subtle
    notion that is related to a rich family of geometric properties of Hamiltonian
    systems. While the effects of preserving symplecticity\r\nunder discretisation
    on long-term behaviour of motions is classically well known, in this\r\nthesis\r\n(a)
    the role of symplecticity for the bifurcation behaviour of solutions to Hamiltonian\r\nboundary
    value problems is explained. In parameter dependent systems at a bifurcation\r\npoint
    the solution set to a boundary value problem changes qualitatively. Bifurcation\r\nproblems
    are systematically translated into the framework of classical catastrophe theory.
    It is proved that existing classification results in catastrophe theory apply
    to\r\npersistent bifurcations of Hamiltonian boundary value problems. Further
    results for\r\nsymmetric settings are derived.\r\n(b) It is proved that to preserve
    generic bifurcations under discretisation it is necessary and sufficient to preserve
    the symplectic structure of the problem.\r\n(c) The catastrophe theory framework
    for Hamiltonian ODEs is extended to PDEs\r\nwith variational structure. Recognition
    equations for A-series singularities for functionals on Banach spaces are derived
    and used in a numerical example to locate high-codimensional bifurcations.\r\n(d)
    The potential of symplectic integration for infinite-dimensional Lie-Poisson systems
    (Burgers’ equation, KdV, fluid equations, . . . ) using Clebsch variables is analysed.\r\nIt
    is shown that the advantages of symplectic integration can outweigh the disadvantages
    of integrating over a larger phase space introduced by a Clebsch representation.\r\n(e)
    Finally, the preservation of variational structure of symmetric solutions in multisymplectic
    PDEs by multisymplectic integrators on the example of (phase-rotating)\r\ntravelling
    waves in the nonlinear wave equation is discussed."
alternative_title:
- A thesis presented in partial fulfilment of the requirements for the degree of Doctor
  of Philosophy in Mathematics at Massey University, Manawatū, New Zealand.
author:
- first_name: Christian
  full_name: Offen, Christian
  id: '85279'
  last_name: Offen
  orcid: https://orcid.org/0000-0002-5940-8057
citation:
  ama: 'Offen C. <i>Analysis of Hamiltonian Boundary Value Problems and Symplectic
    Integration</i>. Palmerston North, New Zealand: Massey University; 2020.'
  apa: 'Offen, C. (2020). <i>Analysis of Hamiltonian boundary value problems and symplectic
    integration</i>. Palmerston North, New Zealand: Massey University.'
  bibtex: '@book{Offen_2020, place={Palmerston North, New Zealand}, title={Analysis
    of Hamiltonian boundary value problems and symplectic integration}, publisher={Massey
    University}, author={Offen, Christian}, year={2020} }'
  chicago: 'Offen, Christian. <i>Analysis of Hamiltonian Boundary Value Problems and
    Symplectic Integration</i>. Palmerston North, New Zealand: Massey University,
    2020.'
  ieee: 'C. Offen, <i>Analysis of Hamiltonian boundary value problems and symplectic
    integration</i>. Palmerston North, New Zealand: Massey University, 2020.'
  mla: Offen, Christian. <i>Analysis of Hamiltonian Boundary Value Problems and Symplectic
    Integration</i>. Massey University, 2020.
  short: C. Offen, Analysis of Hamiltonian Boundary Value Problems and Symplectic
    Integration, Massey University, Palmerston North, New Zealand, 2020.
date_created: 2020-10-06T18:56:44Z
date_updated: 2022-01-06T06:54:16Z
ddc:
- '510'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: coffen
  date_created: 2020-10-06T18:54:53Z
  date_updated: 2020-10-07T14:01:58Z
  description: |-
    A thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in
    Mathematics at Massey University, Manawatū, New Zealand.
  file_id: '19948'
  file_name: ths_all_signatures.pdf
  file_size: 19465740
  relation: main_file
  title: Thesis Christian Offen
file_date_updated: 2020-10-07T14:01:58Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hdl.handle.net/10179/16155
oa: '1'
place: Palmerston North, New Zealand
publication_status: published
publisher: Massey University
status: public
supervisor:
- first_name: Robert I
  full_name: McLachlan, Robert I
  last_name: McLachlan
title: Analysis of Hamiltonian boundary value problems and symplectic integration
type: dissertation
user_id: '85279'
year: '2020'
...
---
_id: '19953'
abstract:
- lang: eng
  text: Current GNN architectures use a vertex neighborhood aggregation scheme, which
    limits their discriminative power to that of the 1-dimensional Weisfeiler-Lehman
    (WL) graph isomorphism test. Here, we propose a novel graph convolution operator
    that is based on the 2-dimensional WL test. We formally show that the resulting
    2-WL-GNN architecture is more discriminative than existing GNN approaches. This
    theoretical result is complemented by experimental studies using synthetic and
    real data. On multiple common graph classification benchmarks, we demonstrate
    that the proposed model is competitive with state-of-the-art graph kernels and
    GNNs.
author:
- first_name: Clemens
  full_name: Damke, Clemens
  id: '48192'
  last_name: Damke
  orcid: 0000-0002-0455-0048
- first_name: Vitaly
  full_name: Melnikov, Vitaly
  id: '58747'
  last_name: Melnikov
- first_name: Eyke
  full_name: Hüllermeier, Eyke
  id: '48129'
  last_name: Hüllermeier
citation:
  ama: 'Damke C, Melnikov V, Hüllermeier E. A Novel Higher-order Weisfeiler-Lehman
    Graph Convolution. In: Jialin Pan S, Sugiyama M, eds. <i>Proceedings of the 12th
    Asian Conference on Machine Learning (ACML 2020)</i>. Vol 129. Proceedings of
    Machine Learning Research. Bangkok, Thailand: PMLR; 2020:49-64.'
  apa: 'Damke, C., Melnikov, V., &#38; Hüllermeier, E. (2020). A Novel Higher-order
    Weisfeiler-Lehman Graph Convolution. In S. Jialin Pan &#38; M. Sugiyama (Eds.),
    <i>Proceedings of the 12th Asian Conference on Machine Learning (ACML 2020)</i>
    (Vol. 129, pp. 49–64). Bangkok, Thailand: PMLR.'
  bibtex: '@inproceedings{Damke_Melnikov_Hüllermeier_2020, place={Bangkok, Thailand},
    series={Proceedings of Machine Learning Research}, title={A Novel Higher-order
    Weisfeiler-Lehman Graph Convolution}, volume={129}, booktitle={Proceedings of
    the 12th Asian Conference on Machine Learning (ACML 2020)}, publisher={PMLR},
    author={Damke, Clemens and Melnikov, Vitaly and Hüllermeier, Eyke}, editor={Jialin
    Pan, Sinno and Sugiyama, MasashiEditors}, year={2020}, pages={49–64}, collection={Proceedings
    of Machine Learning Research} }'
  chicago: 'Damke, Clemens, Vitaly Melnikov, and Eyke Hüllermeier. “A Novel Higher-Order
    Weisfeiler-Lehman Graph Convolution.” In <i>Proceedings of the 12th Asian Conference
    on Machine Learning (ACML 2020)</i>, edited by Sinno Jialin Pan and Masashi Sugiyama,
    129:49–64. Proceedings of Machine Learning Research. Bangkok, Thailand: PMLR,
    2020.'
  ieee: C. Damke, V. Melnikov, and E. Hüllermeier, “A Novel Higher-order Weisfeiler-Lehman
    Graph Convolution,” in <i>Proceedings of the 12th Asian Conference on Machine
    Learning (ACML 2020)</i>, Bangkok, Thailand, 2020, vol. 129, pp. 49–64.
  mla: Damke, Clemens, et al. “A Novel Higher-Order Weisfeiler-Lehman Graph Convolution.”
    <i>Proceedings of the 12th Asian Conference on Machine Learning (ACML 2020)</i>,
    edited by Sinno Jialin Pan and Masashi Sugiyama, vol. 129, PMLR, 2020, pp. 49–64.
  short: 'C. Damke, V. Melnikov, E. Hüllermeier, in: S. Jialin Pan, M. Sugiyama (Eds.),
    Proceedings of the 12th Asian Conference on Machine Learning (ACML 2020), PMLR,
    Bangkok, Thailand, 2020, pp. 49–64.'
conference:
  end_date: 2020-11-20
  location: Bangkok, Thailand
  name: Asian Conference on Machine Learning
  start_date: 2020-11-18
date_created: 2020-10-08T10:48:38Z
date_updated: 2022-01-06T06:54:17Z
ddc:
- '006'
department:
- _id: '355'
editor:
- first_name: Sinno
  full_name: Jialin Pan, Sinno
  last_name: Jialin Pan
- first_name: Masashi
  full_name: Sugiyama, Masashi
  last_name: Sugiyama
external_id:
  arxiv:
  - '2007.00346'
file:
- access_level: open_access
  content_type: application/pdf
  creator: cdamke
  date_created: 2020-10-08T10:54:48Z
  date_updated: 2020-10-08T11:21:00Z
  file_id: '19954'
  file_name: damke20.pdf
  file_size: 771137
  relation: main_file
- access_level: open_access
  content_type: application/pdf
  creator: cdamke
  date_created: 2020-10-08T10:54:59Z
  date_updated: 2020-10-08T11:24:29Z
  file_id: '19955'
  file_name: damke20-supp.pdf
  file_size: 613163
  relation: supplementary_material
file_date_updated: 2020-10-08T11:24:29Z
has_accepted_license: '1'
intvolume: '       129'
keyword:
- graph neural networks
- Weisfeiler-Lehman test
- cycle detection
language:
- iso: eng
oa: '1'
page: 49-64
place: Bangkok, Thailand
publication: Proceedings of the 12th Asian Conference on Machine Learning (ACML 2020)
publication_status: published
publisher: PMLR
quality_controlled: '1'
series_title: Proceedings of Machine Learning Research
status: public
title: A Novel Higher-order Weisfeiler-Lehman Graph Convolution
type: conference
user_id: '48192'
volume: 129
year: '2020'
...
---
_id: '19999'
author:
- first_name: Stefan
  full_name: Mayer, Stefan
  last_name: Mayer
citation:
  ama: Mayer S. <i>Optimierung von JMCTest Beim Testen von Inter Method Contracts</i>.
    Universität Paderborn; 2020.
  apa: Mayer, S. (2020). <i>Optimierung von JMCTest beim Testen von Inter Method Contracts</i>.
    Universität Paderborn.
  bibtex: '@book{Mayer_2020, title={Optimierung von JMCTest beim Testen von Inter
    Method Contracts}, publisher={Universität Paderborn}, author={Mayer, Stefan},
    year={2020} }'
  chicago: Mayer, Stefan. <i>Optimierung von JMCTest Beim Testen von Inter Method
    Contracts</i>. Universität Paderborn, 2020.
  ieee: S. Mayer, <i>Optimierung von JMCTest beim Testen von Inter Method Contracts</i>.
    Universität Paderborn, 2020.
  mla: Mayer, Stefan. <i>Optimierung von JMCTest Beim Testen von Inter Method Contracts</i>.
    Universität Paderborn, 2020.
  short: S. Mayer, Optimierung von JMCTest Beim Testen von Inter Method Contracts,
    Universität Paderborn, 2020.
date_created: 2020-10-15T05:15:46Z
date_updated: 2022-01-06T06:54:18Z
department:
- _id: '7'
- _id: '77'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '3'
  name: SFB 901 - Project Area B
- _id: '11'
  name: SFB 901 - Subproject B3
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Heike
  full_name: Wehrheim, Heike
  id: '573'
  last_name: Wehrheim
title: Optimierung von JMCTest beim Testen von Inter Method Contracts
type: bachelorsthesis
user_id: '477'
year: '2020'
...
---
_id: '20116'
author:
- first_name: Zahra
  full_name: Nouri, Zahra
  id: '35802'
  last_name: Nouri
- first_name: Henning
  full_name: Wachsmuth, Henning
  id: '3900'
  last_name: Wachsmuth
- first_name: Gregor
  full_name: Engels, Gregor
  id: '107'
  last_name: Engels
citation:
  ama: 'Nouri Z, Wachsmuth H, Engels G. Mining Crowdsourcing Problems from Discussion
    Forums of Workers. In: <i>Proceedings of COLING 2020, the 28th International Conference
    on Computational Linguistics</i>. ; :6264-6276.'
  apa: Nouri, Z., Wachsmuth, H., &#38; Engels, G. (n.d.). Mining Crowdsourcing Problems
    from Discussion Forums of Workers. In <i>Proceedings of COLING 2020, the 28th
    International Conference on Computational Linguistics</i> (pp. 6264–6276). Barcelona,
    Spain.
  bibtex: '@inproceedings{Nouri_Wachsmuth_Engels, title={Mining Crowdsourcing Problems
    from Discussion Forums of Workers}, booktitle={Proceedings of COLING 2020, the
    28th International Conference on Computational Linguistics}, author={Nouri, Zahra
    and Wachsmuth, Henning and Engels, Gregor}, pages={6264–6276} }'
  chicago: Nouri, Zahra, Henning Wachsmuth, and Gregor Engels. “Mining Crowdsourcing
    Problems from Discussion Forums of Workers.” In <i>Proceedings of COLING 2020,
    the 28th International Conference on Computational Linguistics</i>, 6264–76, n.d.
  ieee: Z. Nouri, H. Wachsmuth, and G. Engels, “Mining Crowdsourcing Problems from
    Discussion Forums of Workers,” in <i>Proceedings of COLING 2020, the 28th International
    Conference on Computational Linguistics</i>, Barcelona, Spain, pp. 6264–6276.
  mla: Nouri, Zahra, et al. “Mining Crowdsourcing Problems from Discussion Forums
    of Workers.” <i>Proceedings of COLING 2020, the 28th International Conference
    on Computational Linguistics</i>, pp. 6264–76.
  short: 'Z. Nouri, H. Wachsmuth, G. Engels, in: Proceedings of COLING 2020, the 28th
    International Conference on Computational Linguistics, n.d., pp. 6264–6276.'
conference:
  end_date: 2020-12-13
  location: Barcelona, Spain
  name: The 28th International Conference on Computational Linguistics
  start_date: 2020-12-08
date_created: 2020-10-18T12:21:34Z
date_updated: 2022-01-06T06:54:19Z
ddc:
- '000'
department:
- _id: '600'
file:
- access_level: closed
  content_type: application/pdf
  creator: znouri
  date_created: 2020-11-10T14:25:56Z
  date_updated: 2020-11-10T14:25:56Z
  file_id: '20334'
  file_name: Mining Crowdsourcing Problems from Discussion Forums of Workers.pdf
  file_size: 610246
  relation: main_file
  success: 1
file_date_updated: 2020-11-10T14:25:56Z
has_accepted_license: '1'
language:
- iso: eng
page: 6264-6276
publication: Proceedings of COLING 2020, the 28th International Conference on Computational
  Linguistics
publication_status: accepted
status: public
title: Mining Crowdsourcing Problems from Discussion Forums of Workers
type: conference
user_id: '82920'
year: '2020'
...
---
_id: '20122'
author:
- first_name: Roxanne
  full_name: El Baff, Roxanne
  last_name: El Baff
- first_name: Khalid
  full_name: Al-Khatib, Khalid
  last_name: Al-Khatib
- first_name: Benno
  full_name: Stein, Benno
  last_name: Stein
- first_name: Henning
  full_name: Wachsmuth, Henning
  id: '3900'
  last_name: Wachsmuth
citation:
  ama: 'El Baff R, Al-Khatib K, Stein B, Wachsmuth H. Persuasiveness of News Editorials
    depending on Ideology and Personality. In: <i>Third Workshop on Computational
    Modeling of People’s Opinions, Personality, and Emotions in Social Media (PEOPLES
    2020)</i>. ; 2020:29-40.'
  apa: El Baff, R., Al-Khatib, K., Stein, B., &#38; Wachsmuth, H. (2020). Persuasiveness
    of News Editorials depending on Ideology and Personality. In <i>Third Workshop
    on Computational Modeling of People’s Opinions, Personality, and Emotions in Social
    Media (PEOPLES 2020)</i> (pp. 29–40).
  bibtex: '@inproceedings{El Baff_Al-Khatib_Stein_Wachsmuth_2020, title={Persuasiveness
    of News Editorials depending on Ideology and Personality}, booktitle={Third Workshop
    on Computational Modeling of People’s Opinions, Personality, and Emotions in Social
    Media (PEOPLES 2020)}, author={El Baff, Roxanne and Al-Khatib, Khalid and Stein,
    Benno and Wachsmuth, Henning}, year={2020}, pages={29–40} }'
  chicago: El Baff, Roxanne, Khalid Al-Khatib, Benno Stein, and Henning Wachsmuth.
    “Persuasiveness of News Editorials Depending on Ideology and Personality.” In
    <i>Third Workshop on Computational Modeling of People’s Opinions, Personality,
    and Emotions in Social Media (PEOPLES 2020)</i>, 29–40, 2020.
  ieee: R. El Baff, K. Al-Khatib, B. Stein, and H. Wachsmuth, “Persuasiveness of News
    Editorials depending on Ideology and Personality,” in <i>Third Workshop on Computational
    Modeling of People’s Opinions, Personality, and Emotions in Social Media (PEOPLES
    2020)</i>, 2020, pp. 29–40.
  mla: El Baff, Roxanne, et al. “Persuasiveness of News Editorials Depending on Ideology
    and Personality.” <i>Third Workshop on Computational Modeling of People’s Opinions,
    Personality, and Emotions in Social Media (PEOPLES 2020)</i>, 2020, pp. 29–40.
  short: 'R. El Baff, K. Al-Khatib, B. Stein, H. Wachsmuth, in: Third Workshop on
    Computational Modeling of People’s Opinions, Personality, and Emotions in Social
    Media (PEOPLES 2020), 2020, pp. 29–40.'
date_created: 2020-10-19T08:49:05Z
date_updated: 2022-01-06T06:54:20Z
department:
- _id: '600'
language:
- iso: eng
main_file_link:
- url: https://www.aclweb.org/anthology/2020.peoples-1.4.pdf
page: 29-40
publication: Third Workshop on Computational Modeling of People's Opinions, Personality,
  and Emotions in Social Media (PEOPLES 2020)
status: public
title: Persuasiveness of News Editorials depending on Ideology and Personality
type: conference
user_id: '82920'
year: '2020'
...
---
_id: '20123'
author:
- first_name: Bardo
  full_name: Herzig, Bardo
  last_name: Herzig
- first_name: Alexander
  full_name: Martin, Alexander
  last_name: Martin
- first_name: Tilman-Mathies
  full_name: Klar, Tilman-Mathies
  id: '35771'
  last_name: Klar
citation:
  ama: 'Herzig B, Martin A, Klar T-M. Mobile Medien – Medienpädagogische und technische
    Grundlagen, Potential für den Deutschunterricht und Beispiele. In: Knopf J, Abraham
    U, eds. <i>Deutsch Digital. Band 1 Theorie (2. Aufl.)</i>. ; 2020:108-135.'
  apa: Herzig, B., Martin, A., &#38; Klar, T.-M. (2020). Mobile Medien – Medienpädagogische
    und technische Grundlagen, Potential für den Deutschunterricht und Beispiele.
    In J. Knopf &#38; U. Abraham (Eds.), <i>Deutsch Digital. Band 1 Theorie (2. Aufl.)</i>
    (pp. 108–135).
  bibtex: '@inbook{Herzig_Martin_Klar_2020, title={Mobile Medien – Medienpädagogische
    und technische Grundlagen, Potential für den Deutschunterricht und Beispiele.},
    booktitle={Deutsch Digital. Band 1 Theorie (2. Aufl.)}, author={Herzig, Bardo
    and Martin, Alexander and Klar, Tilman-Mathies}, editor={Knopf, Julia and Abraham,
    UlfEditors}, year={2020}, pages={108–135} }'
  chicago: Herzig, Bardo, Alexander Martin, and Tilman-Mathies Klar. “Mobile Medien
    – Medienpädagogische und technische Grundlagen, Potential für den Deutschunterricht
    und Beispiele.” In <i>Deutsch Digital. Band 1 Theorie (2. Aufl.)</i>, edited by
    Julia Knopf and Ulf Abraham, 108–35, 2020.
  ieee: B. Herzig, A. Martin, and T.-M. Klar, “Mobile Medien – Medienpädagogische
    und technische Grundlagen, Potential für den Deutschunterricht und Beispiele.,”
    in <i>Deutsch Digital. Band 1 Theorie (2. Aufl.)</i>, J. Knopf and U. Abraham,
    Eds. 2020, pp. 108–135.
  mla: Herzig, Bardo, et al. “Mobile Medien – Medienpädagogische und technische Grundlagen,
    Potential für den Deutschunterricht und Beispiele.” <i>Deutsch Digital. Band 1
    Theorie (2. Aufl.)</i>, edited by Julia Knopf and Ulf Abraham, 2020, pp. 108–35.
  short: 'B. Herzig, A. Martin, T.-M. Klar, in: J. Knopf, U. Abraham (Eds.), Deutsch
    Digital. Band 1 Theorie (2. Aufl.), 2020, pp. 108–135.'
date_created: 2020-10-19T12:48:19Z
date_updated: 2022-01-06T06:54:20Z
editor:
- first_name: Julia
  full_name: Knopf, Julia
  last_name: Knopf
- first_name: Ulf
  full_name: Abraham, Ulf
  last_name: Abraham
language:
- iso: ger
page: 108-135
publication: Deutsch Digital. Band 1 Theorie (2. Aufl.)
publication_identifier:
  isbn:
  - 978-3-8340-2048-2
status: public
title: Mobile Medien – Medienpädagogische und technische Grundlagen, Potential für
  den Deutschunterricht und Beispiele.
type: book_chapter
user_id: '35771'
year: '2020'
...
---
_id: '20131'
author:
- first_name: Dennis
  full_name: Kundisch, Dennis
  id: '21117'
  last_name: Kundisch
- first_name: Daniel
  full_name: Beverungen, Daniel
  id: '59677'
  last_name: Beverungen
citation:
  ama: Kundisch D, Beverungen D. <i>Als Wirtschaftsinformatiker die digitale Transformation
    in Organisationen gestalten</i>. Martin, Slovakia; 2020:22-26.
  apa: Kundisch, D., &#38; Beverungen, D. (2020). <i>Als Wirtschaftsinformatiker die
    digitale Transformation in Organisationen gestalten</i> (pp. 22–26). Martin, Slovakia.
  bibtex: '@book{Kundisch_Beverungen_2020, place={Martin, Slovakia}, series={Traumjob
    IT - Durchstarten leicht gemacht 2021, e-fellows.net}, title={Als Wirtschaftsinformatiker
    die digitale Transformation in Organisationen gestalten}, author={Kundisch, Dennis
    and Beverungen, Daniel}, year={2020}, pages={22–26}, collection={Traumjob IT -
    Durchstarten leicht gemacht 2021, e-fellows.net} }'
  chicago: Kundisch, Dennis, and Daniel Beverungen. <i>Als Wirtschaftsinformatiker
    die digitale Transformation in Organisationen gestalten</i>. Traumjob IT - Durchstarten
    leicht gemacht 2021, e-fellows.net. Martin, Slovakia, 2020.
  ieee: D. Kundisch and D. Beverungen, <i>Als Wirtschaftsinformatiker die digitale
    Transformation in Organisationen gestalten</i>. Martin, Slovakia, 2020, pp. 22–26.
  mla: Kundisch, Dennis, and Daniel Beverungen. <i>Als Wirtschaftsinformatiker die
    digitale Transformation in Organisationen gestalten</i>. 2020, pp. 22–26.
  short: D. Kundisch, D. Beverungen, Als Wirtschaftsinformatiker die digitale Transformation
    in Organisationen gestalten, Martin, Slovakia, 2020.
date_created: 2020-10-20T11:04:14Z
date_updated: 2022-01-06T06:54:20Z
department:
- _id: '276'
language:
- iso: ger
page: 22-26
place: Martin, Slovakia
series_title: Traumjob IT - Durchstarten leicht gemacht 2021, e-fellows.net
status: public
title: Als Wirtschaftsinformatiker die digitale Transformation in Organisationen gestalten
type: report
user_id: '16205'
year: '2020'
...