---
_id: '24011'
author:
- first_name: Tintu David
full_name: Joy, Tintu David
id: '30821'
last_name: Joy
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Lena
full_name: Risse, Lena
id: '27356'
last_name: Risse
citation:
ama: 'Joy TD, Kullmer G, Risse L. Vorhersage der Rissinitiierung in 3D-Strukturen
mit ADAPCRACK3D. In: Vol DVM-Bericht 252. ; 2020:207-216.'
apa: Joy, T. D., Kullmer, G., & Risse, L. (2020). Vorhersage der Rissinitiierung
in 3D-Strukturen mit ADAPCRACK3D. DVM-Bericht 252, 207–216.
bibtex: '@inproceedings{Joy_Kullmer_Risse_2020, title={Vorhersage der Rissinitiierung
in 3D-Strukturen mit ADAPCRACK3D}, volume={DVM-Bericht 252}, author={Joy, Tintu
David and Kullmer, Gunter and Risse, Lena}, year={2020}, pages={207–216} }'
chicago: Joy, Tintu David, Gunter Kullmer, and Lena Risse. “Vorhersage der Rissinitiierung
in 3D-Strukturen mit ADAPCRACK3D,” DVM-Bericht 252:207–16, 2020.
ieee: T. D. Joy, G. Kullmer, and L. Risse, “Vorhersage der Rissinitiierung in 3D-Strukturen
mit ADAPCRACK3D,” Hamburg, 2020, vol. DVM-Bericht 252, pp. 207–216.
mla: Joy, Tintu David, et al. Vorhersage der Rissinitiierung in 3D-Strukturen
mit ADAPCRACK3D. 2020, pp. 207–16.
short: 'T.D. Joy, G. Kullmer, L. Risse, in: 2020, pp. 207–216.'
conference:
end_date: 2020-02-20
location: Hamburg
name: 'Arbeitskreis: Bruchmechanische Werkstoff- und Bauteilbewertung: Beanspruchungsanalyse,
Prüfmethoden und Anwendungen'
start_date: 2020-02-19
date_created: 2021-09-09T10:11:40Z
date_updated: 2022-01-06T06:56:05Z
department:
- _id: '143'
language:
- iso: ger
page: 207-216
status: public
title: Vorhersage der Rissinitiierung in 3D-Strukturen mit ADAPCRACK3D
type: conference
user_id: '45673'
volume: DVM-Bericht 252
year: '2020'
...
---
_id: '20372'
abstract:
- lang: eng
text: A stepwise angular spectrum method (SASM) for curved interfaces is presented
to calculate the wave propagation in planar lens-like integrated optical structures
based on photonic slab waveguides. The method is derived and illustrated for an
effective 2D setup first and then for 3D slab waveguide lenses. We employ slab
waveguides of different thicknesses connected by curved surfaces to realize a
lens-like structure. To simulate the wave propagation in 3D including reflection
and scattering losses, the stepwise angular spectrum method is combined with full
vectorial finite element computations for subproblems with lower complexity. Our
SASM results show excellent agreement with rigorous numerical simulations of the
full structures with a substantially lower computational effort and can be utilized
for the simulation-based design and optimization of complex and large scale setups.
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Ebers L, Hammer M, Förstner J. Light diffraction in slab waveguide lenses simulated
with the stepwise angular spectrum method. Optics Express. 2020;28(24):36361.
doi:10.1364/oe.409612
apa: Ebers, L., Hammer, M., & Förstner, J. (2020). Light diffraction in slab
waveguide lenses simulated with the stepwise angular spectrum method. Optics
Express, 28(24), 36361. https://doi.org/10.1364/oe.409612
bibtex: '@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide
lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={10.1364/oe.409612}, number={24},
journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner,
Jens}, year={2020}, pages={36361} }'
chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in
Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” Optics
Express 28, no. 24 (2020): 36361. https://doi.org/10.1364/oe.409612.'
ieee: L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide
lenses simulated with the stepwise angular spectrum method,” Optics Express,
vol. 28, no. 24, p. 36361, 2020.
mla: Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with
the Stepwise Angular Spectrum Method.” Optics Express, vol. 28, no. 24,
2020, p. 36361, doi:10.1364/oe.409612.
short: L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361.
date_created: 2020-11-17T09:52:47Z
date_updated: 2022-01-06T06:54:26Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/oe.409612
intvolume: ' 28'
issue: '24'
keyword:
- tet_topic_waveguides
language:
- iso: eng
page: '36361'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '74'
name: TRR 142 - Subproject C4
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Light diffraction in slab waveguide lenses simulated with the stepwise angular
spectrum method
type: journal_article
user_id: '158'
volume: 28
year: '2020'
...
---
_id: '20512'
author:
- first_name: Stefan
full_name: Krüger, Stefan
last_name: Krüger
- first_name: Karim
full_name: Ali, Karim
last_name: Ali
- first_name: Eric
full_name: Bodden, Eric
last_name: Bodden
citation:
ama: 'Krüger S, Ali K, Bodden E. CogniCrypt_GEN - Generating Code for the Secure
Usage of Crypto APIs. In: International Symposium on Code Generation and Optimization
(CGO). ; 2020:185-198.'
apa: Krüger, S., Ali, K., & Bodden, E. (2020). CogniCrypt_GEN - Generating Code
for the Secure Usage of Crypto APIs. International Symposium on Code Generation
and Optimization (CGO), 185–198.
bibtex: '@inproceedings{Krüger_Ali_Bodden_2020, title={CogniCrypt_GEN - Generating
Code for the Secure Usage of Crypto APIs}, booktitle={International Symposium
on Code Generation and Optimization (CGO)}, author={Krüger, Stefan and Ali, Karim
and Bodden, Eric}, year={2020}, pages={185–198} }'
chicago: Krüger, Stefan, Karim Ali, and Eric Bodden. “CogniCrypt_GEN - Generating
Code for the Secure Usage of Crypto APIs.” In International Symposium on Code
Generation and Optimization (CGO), 185–98, 2020.
ieee: S. Krüger, K. Ali, and E. Bodden, “CogniCrypt_GEN - Generating Code for the
Secure Usage of Crypto APIs,” in International Symposium on Code Generation
and Optimization (CGO), 2020, pp. 185–198.
mla: Krüger, Stefan, et al. “CogniCrypt_GEN - Generating Code for the Secure Usage
of Crypto APIs.” International Symposium on Code Generation and Optimization
(CGO), 2020, pp. 185–98.
short: 'S. Krüger, K. Ali, E. Bodden, in: International Symposium on Code Generation
and Optimization (CGO), 2020, pp. 185–198.'
date_created: 2020-11-26T08:51:01Z
date_updated: 2022-01-06T06:54:29Z
department:
- _id: '76'
language:
- iso: eng
page: 185-198
publication: International Symposium on Code Generation and Optimization (CGO)
related_material:
link:
- relation: confirmation
url: http://www.bodden.de/pubs/krueger20cognicryptgen.pdf
status: public
title: CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs
type: conference
user_id: '5786'
year: '2020'
...
---
_id: '20854'
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: Camberg AA, Tröster T. A simplified method for the evaluation of the layer
compression test using one 3D digital image correlation system and considering
the material anisotropy by the equibiaxial Lankford parameter. 2020. doi:10.1088/1757-899X/967/1/012077
apa: Camberg, A. A., & Tröster, T. (2020). A simplified method for the evaluation
of the layer compression test using one 3D digital image correlation system and
considering the material anisotropy by the equibiaxial Lankford parameter. Presented
at the International Deep-Drawing Research Group (IDDRG 2020), Seoul, South Korea.
https://doi.org/10.1088/1757-899X/967/1/012077
bibtex: '@article{Camberg_Tröster_2020, series={ IOP Conference Series: Materials
Science and Engineering}, title={A simplified method for the evaluation of the
layer compression test using one 3D digital image correlation system and considering
the material anisotropy by the equibiaxial Lankford parameter}, DOI={10.1088/1757-899X/967/1/012077},
author={Camberg, Alan Adam and Tröster, Thomas}, year={2020}, collection={ IOP
Conference Series: Materials Science and Engineering} }'
chicago: 'Camberg, Alan Adam, and Thomas Tröster. “A Simplified Method for the Evaluation
of the Layer Compression Test Using One 3D Digital Image Correlation System and
Considering the Material Anisotropy by the Equibiaxial Lankford Parameter.” IOP
Conference Series: Materials Science and Engineering, 2020. https://doi.org/10.1088/1757-899X/967/1/012077.'
ieee: A. A. Camberg and T. Tröster, “A simplified method for the evaluation of the
layer compression test using one 3D digital image correlation system and considering
the material anisotropy by the equibiaxial Lankford parameter.” 2020.
mla: Camberg, Alan Adam, and Thomas Tröster. A Simplified Method for the Evaluation
of the Layer Compression Test Using One 3D Digital Image Correlation System and
Considering the Material Anisotropy by the Equibiaxial Lankford Parameter.
2020, doi:10.1088/1757-899X/967/1/012077.
short: A.A. Camberg, T. Tröster, (2020).
conference:
end_date: 2020-10-30
location: Seoul, South Korea
name: International Deep-Drawing Research Group (IDDRG 2020)
start_date: 2020-10-26
date_created: 2021-01-04T15:11:08Z
date_updated: 2022-01-06T06:54:40Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.1088/1757-899X/967/1/012077
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://iopscience.iop.org/article/10.1088/1757-899X/967/1/012077/pdf
oa: '1'
series_title: ' IOP Conference Series: Materials Science and Engineering'
status: public
title: A simplified method for the evaluation of the layer compression test using
one 3D digital image correlation system and considering the material anisotropy
by the equibiaxial Lankford parameter
type: conference
user_id: '60544'
year: '2020'
...
---
_id: '18014'
author:
- first_name: Adil
full_name: El Mesaoudi-Paul, Adil
last_name: El Mesaoudi-Paul
- first_name: Dimitri
full_name: Weiß, Dimitri
last_name: Weiß
- first_name: Viktor
full_name: Bengs, Viktor
id: '76599'
last_name: Bengs
- first_name: Eyke
full_name: Hüllermeier, Eyke
id: '48129'
last_name: Hüllermeier
- first_name: Kevin
full_name: Tierney, Kevin
last_name: Tierney
citation:
ama: 'El Mesaoudi-Paul A, Weiß D, Bengs V, Hüllermeier E, Tierney K. Pool-Based
Realtime Algorithm Configuration: A Preselection Bandit Approach. In: Learning
and Intelligent Optimization. LION 2020. Vol 12096. Lecture Notes in Computer
Science. Cham: Springer; 2020:216-232. doi:10.1007/978-3-030-53552-0_22'
apa: 'El Mesaoudi-Paul, A., Weiß, D., Bengs, V., Hüllermeier, E., & Tierney,
K. (2020). Pool-Based Realtime Algorithm Configuration: A Preselection Bandit
Approach. In Learning and Intelligent Optimization. LION 2020. (Vol. 12096,
pp. 216–232). Cham: Springer. https://doi.org/10.1007/978-3-030-53552-0_22'
bibtex: '@inbook{El Mesaoudi-Paul_Weiß_Bengs_Hüllermeier_Tierney_2020, place={Cham},
series={Lecture Notes in Computer Science}, title={Pool-Based Realtime Algorithm
Configuration: A Preselection Bandit Approach}, volume={12096}, DOI={10.1007/978-3-030-53552-0_22},
booktitle={Learning and Intelligent Optimization. LION 2020.}, publisher={Springer},
author={El Mesaoudi-Paul, Adil and Weiß, Dimitri and Bengs, Viktor and Hüllermeier,
Eyke and Tierney, Kevin}, year={2020}, pages={216–232}, collection={Lecture Notes
in Computer Science} }'
chicago: 'El Mesaoudi-Paul, Adil, Dimitri Weiß, Viktor Bengs, Eyke Hüllermeier,
and Kevin Tierney. “Pool-Based Realtime Algorithm Configuration: A Preselection
Bandit Approach.” In Learning and Intelligent Optimization. LION 2020.,
12096:216–32. Lecture Notes in Computer Science. Cham: Springer, 2020. https://doi.org/10.1007/978-3-030-53552-0_22.'
ieee: 'A. El Mesaoudi-Paul, D. Weiß, V. Bengs, E. Hüllermeier, and K. Tierney, “Pool-Based
Realtime Algorithm Configuration: A Preselection Bandit Approach,” in Learning
and Intelligent Optimization. LION 2020., vol. 12096, Cham: Springer, 2020,
pp. 216–232.'
mla: 'El Mesaoudi-Paul, Adil, et al. “Pool-Based Realtime Algorithm Configuration:
A Preselection Bandit Approach.” Learning and Intelligent Optimization. LION
2020., vol. 12096, Springer, 2020, pp. 216–32, doi:10.1007/978-3-030-53552-0_22.'
short: 'A. El Mesaoudi-Paul, D. Weiß, V. Bengs, E. Hüllermeier, K. Tierney, in:
Learning and Intelligent Optimization. LION 2020., Springer, Cham, 2020, pp. 216–232.'
date_created: 2020-08-17T11:44:37Z
date_updated: 2022-01-06T06:53:25Z
department:
- _id: '34'
- _id: '7'
- _id: '355'
doi: 10.1007/978-3-030-53552-0_22
intvolume: ' 12096'
language:
- iso: eng
page: 216 - 232
place: Cham
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Learning and Intelligent Optimization. LION 2020.
publication_identifier:
isbn:
- '9783030535513'
- '9783030535520'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science
status: public
title: 'Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach'
type: book_chapter
user_id: '76599'
volume: 12096
year: '2020'
...
---
_id: '18249'
abstract:
- lang: eng
text: Augmented Reality (AR) has recently found high attention in mobile shopping
apps such as in domains like furniture or decoration. Here, the developers of
the apps focus on the positioning of atomic 3D objects in the physical environment.
With this focus, they neglect the configuration of multi-faceted 3D object composition
according to the user needs and environmental constraints. To tackle these challenges,
we present a model-based approach to support AR-assisted product con-figuration
based on the concept of Dynamic Software Product Lines. Our approach splits products
(e.g. table) into parts (e.g. tabletop, ta-ble legs, funnier) with their 3D objects
and additional information (e.g. name, price). The possible products, which can
be configured out of these parts, are stored in a feature model. At runtime, this
feature model can be used to configure 3D object compositions out of the product
parts and adapt to user needs and environmental constraints. The benefits of this
approach are demonstrated by a case study of configuring modular kitchens with
the help of a prototypical mobile-based implementation.
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: Eugen
full_name: Schmidt, Eugen
last_name: Schmidt
- first_name: Gregor
full_name: Engels, Gregor
id: '107'
last_name: Engels
citation:
ama: 'Gottschalk S, Yigitbas E, Schmidt E, Engels G. Model-based Product Configuration
in Augmented Reality Applications. In: Bernhaupt R, Ardito C, Sauer S, eds. Human-Centered
Software Engineering. HCSE 2020. Vol 12481. Lecture Notes in Computer Science.
Cham: Springer; 2020. doi:10.1007/978-3-030-64266-2_5'
apa: 'Gottschalk, S., Yigitbas, E., Schmidt, E., & Engels, G. (2020). Model-based
Product Configuration in Augmented Reality Applications. In R. Bernhaupt, C. Ardito,
& S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020 (Vol.
12481). Cham: Springer. https://doi.org/10.1007/978-3-030-64266-2_5'
bibtex: '@inproceedings{Gottschalk_Yigitbas_Schmidt_Engels_2020, place={Cham}, series={Lecture
Notes in Computer Science}, title={Model-based Product Configuration in Augmented
Reality Applications}, volume={12481}, DOI={10.1007/978-3-030-64266-2_5},
booktitle={Human-Centered Software Engineering. HCSE 2020}, publisher={Springer},
author={Gottschalk, Sebastian and Yigitbas, Enes and Schmidt, Eugen and Engels,
Gregor}, editor={Bernhaupt, Regina and Ardito, Carmelo and Sauer, StefanEditors},
year={2020}, collection={Lecture Notes in Computer Science} }'
chicago: 'Gottschalk, Sebastian, Enes Yigitbas, Eugen Schmidt, and Gregor Engels.
“Model-Based Product Configuration in Augmented Reality Applications.” In Human-Centered
Software Engineering. HCSE 2020, edited by Regina Bernhaupt, Carmelo Ardito,
and Stefan Sauer, Vol. 12481. Lecture Notes in Computer Science. Cham: Springer,
2020. https://doi.org/10.1007/978-3-030-64266-2_5.'
ieee: S. Gottschalk, E. Yigitbas, E. Schmidt, and G. Engels, “Model-based Product
Configuration in Augmented Reality Applications,” in Human-Centered Software
Engineering. HCSE 2020, Eindhoven, 2020, vol. 12481.
mla: Gottschalk, Sebastian, et al. “Model-Based Product Configuration in Augmented
Reality Applications.” Human-Centered Software Engineering. HCSE 2020,
edited by Regina Bernhaupt et al., vol. 12481, Springer, 2020, doi:10.1007/978-3-030-64266-2_5.
short: 'S. Gottschalk, E. Yigitbas, E. Schmidt, G. Engels, in: R. Bernhaupt, C.
Ardito, S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020, Springer,
Cham, 2020.'
conference:
end_date: 2020-12-02
location: Eindhoven
name: 8th International Working Conference on Human-Centered Software Engineering
(HCSE'20)
start_date: 2020-11-30
date_created: 2020-08-25T08:27:38Z
date_updated: 2022-01-06T06:53:28Z
ddc:
- '000'
department:
- _id: '66'
- _id: '534'
doi: 10.1007/978-3-030-64266-2_5
editor:
- first_name: Regina
full_name: Bernhaupt, Regina
last_name: Bernhaupt
- first_name: Carmelo
full_name: Ardito, Carmelo
last_name: Ardito
- first_name: Stefan
full_name: Sauer, Stefan
last_name: Sauer
file:
- access_level: open_access
content_type: application/pdf
creator: sego
date_created: 2020-11-30T08:33:30Z
date_updated: 2020-11-30T08:36:52Z
file_id: '20541'
file_name: HCSE20_full.pdf
file_size: 2258601
relation: main_file
file_date_updated: 2020-11-30T08:36:52Z
has_accepted_license: '1'
intvolume: ' 12481'
keyword:
- Product Configuration
- Augmented Reality
- Runtime Adaptation
- Dynamic Software Product Lines
language:
- iso: eng
oa: '1'
place: Cham
project:
- _id: '1'
name: SFB 901
- _id: '4'
name: SFB 901 - Project Area C
- _id: '17'
name: SFB 901 - Subproject C5
publication: Human-Centered Software Engineering. HCSE 2020
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science
status: public
title: Model-based Product Configuration in Augmented Reality Applications
type: conference
user_id: '47208'
volume: 12481
year: '2020'
...
---
_id: '22963'
author:
- first_name: Patrick
full_name: Biemelt, Patrick
id: '24876'
last_name: Biemelt
- first_name: Sandra
full_name: Gausemeier, Sandra
id: '17793'
last_name: Gausemeier
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
citation:
ama: Biemelt P, Gausemeier S, Trächtler A. Design and Objective Evaluation of Filter-
and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics Driving
Simulator with 5 Degrees of Freedom. International Journal On Advances in Systems
and Measurements. 2020;13(3 & 4):203-219.
apa: Biemelt, P., Gausemeier, S., & Trächtler, A. (2020). Design and Objective
Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid
Kinematics Driving Simulator with 5 Degrees of Freedom. International Journal
On Advances in Systems and Measurements, 13(3 & 4), 203–219.
bibtex: '@article{Biemelt_Gausemeier_Trächtler_2020, title={Design and Objective
Evaluation of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid
Kinematics Driving Simulator with 5 Degrees of Freedom}, volume={13}, number={3
& 4}, journal={International Journal On Advances in Systems and Measurements},
author={Biemelt, Patrick and Gausemeier, Sandra and Trächtler, Ansgar}, year={2020},
pages={203–219} }'
chicago: 'Biemelt, Patrick, Sandra Gausemeier, and Ansgar Trächtler. “Design and
Objective Evaluation of Filter- and Optimization-Based Motion Cueing Strategies
for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom.” International
Journal On Advances in Systems and Measurements 13, no. 3 & 4 (2020):
203–19.'
ieee: P. Biemelt, S. Gausemeier, and A. Trächtler, “Design and Objective Evaluation
of Filter- and Optimization-based Motion Cueing Strategies for a Hybrid Kinematics
Driving Simulator with 5 Degrees of Freedom,” International Journal On Advances
in Systems and Measurements, vol. 13, no. 3 & 4, pp. 203–219, 2020.
mla: Biemelt, Patrick, et al. “Design and Objective Evaluation of Filter- and Optimization-Based
Motion Cueing Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees
of Freedom.” International Journal On Advances in Systems and Measurements,
vol. 13, no. 3 & 4, 2020, pp. 203–19.
short: P. Biemelt, S. Gausemeier, A. Trächtler, International Journal On Advances
in Systems and Measurements 13 (2020) 203–219.
date_created: 2021-08-09T05:16:48Z
date_updated: 2022-01-06T06:55:44Z
department:
- _id: '153'
intvolume: ' 13'
issue: 3 & 4
language:
- iso: eng
page: 203-219
publication: International Journal On Advances in Systems and Measurements
status: public
title: Design and Objective Evaluation of Filter- and Optimization-based Motion Cueing
Strategies for a Hybrid Kinematics Driving Simulator with 5 Degrees of Freedom
type: journal_article
user_id: '24876'
volume: 13
year: '2020'
...
---
_id: '16939'
author:
- first_name: Marcel
full_name: Triebus, Marcel
id: '66036'
last_name: Triebus
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Triebus M, Tröster T. A Holistic Approach to Optimization-Based Design of
Hybrid Materials. In: Proceedings 4th International Conference Hybrid Materials
& Structures. ; 2020.'
apa: Triebus, M., & Tröster, T. (2020). A Holistic Approach to Optimization-Based
Design of Hybrid Materials. In Proceedings 4th International Conference Hybrid
Materials & Structures. Web-Conference.
bibtex: '@inproceedings{Triebus_Tröster_2020, title={A Holistic Approach to Optimization-Based
Design of Hybrid Materials}, booktitle={Proceedings 4th International Conference
Hybrid Materials & Structures}, author={Triebus, Marcel and Tröster, Thomas},
year={2020} }'
chicago: Triebus, Marcel, and Thomas Tröster. “A Holistic Approach to Optimization-Based
Design of Hybrid Materials.” In Proceedings 4th International Conference Hybrid
Materials & Structures, 2020.
ieee: M. Triebus and T. Tröster, “A Holistic Approach to Optimization-Based Design
of Hybrid Materials,” in Proceedings 4th International Conference Hybrid Materials
& Structures, Web-Conference, 2020.
mla: Triebus, Marcel, and Thomas Tröster. “A Holistic Approach to Optimization-Based
Design of Hybrid Materials.” Proceedings 4th International Conference Hybrid
Materials & Structures, 2020.
short: 'M. Triebus, T. Tröster, in: Proceedings 4th International Conference Hybrid
Materials & Structures, 2020.'
conference:
end_date: 2020-04-29
location: Web-Conference
name: 4th International Conference Hybrid Materials & Structures 2020
start_date: 2020-04-28
date_created: 2020-05-06T10:45:19Z
date_updated: 2022-01-06T06:52:59Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hybrid2020.dgm.de/fileadmin/Tagungen/2020/2020-04-Hybrid-Materials/02-Graphik-Druckwerke/2020-Hybrid-Proceedings.pdf
oa: '1'
publication: Proceedings 4th International Conference Hybrid Materials & Structures
status: public
title: A Holistic Approach to Optimization-Based Design of Hybrid Materials
type: conference
user_id: '66036'
year: '2020'
...
---
_id: '16968'
abstract:
- lang: eng
text: "In this work, we initiate the research about the Gathering problem for robots\r\nwith
limited viewing range in the three-dimensional Euclidean space. In the\r\nGathering
problem, a set of initially scattered robots is required to gather at\r\nthe same
position. The robots' capabilities are very restricted -- they do not\r\nagree
on any coordinate system or compass, have a limited viewing range, have\r\nno
memory of the past and cannot communicate. We study the problem in two\r\ndifferent
time models, in FSYNC (fully synchronized discrete rounds) and the\r\ncontinuous
time model. For FSYNC, we introduce the 3D-Go-To-The-Center-strategy\r\nand prove
a runtime of $\\Theta(n^2)$ that matches the currently best runtime\r\nbound for
the same model in the Euclidean plane [SPAA'11]. Our main result is\r\nthe generalization
of contracting strategies (continuous time) from\r\n[Algosensors'17] to three
dimensions. In contracting strategies, every robot\r\nthat is located on the global
convex hull of all robots' positions moves with\r\nfull speed towards the inside
of the convex hull. We prove a runtime bound of\r\n$O(\\Delta \\cdot n^{3/2})$
for any three-dimensional contracting strategy, where\r\n$\\Delta$ denotes the
diameter of the initial configuration. This comes up to a\r\nfactor of $\\sqrt{n}$
close to the lower bound of $\\Omega (\\Delta \\cdot n)$\r\nwhich is already true
in two dimensions. In general, it might be hard for\r\nrobots with limited viewing
range to decide whether they are located on the\r\nglobal convex hull and which
movement maintains the connectivity of the swarm,\r\nrendering the design of concrete
contracting strategies a challenging task. We\r\nprove that the continuous variant
of 3D-Go-To-The-Center is contracting and\r\nkeeps the swarm connected. Moreover,
we give a simple design criterion for\r\nthree-dimensional contracting strategies
that maintains the connectivity of the\r\nswarm and introduce an exemplary strategy
based on this criterion."
- lang: eng
text: Best Student Paper Award
author:
- first_name: Michael
full_name: Braun, Michael
last_name: Braun
- first_name: Jannik
full_name: Castenow, Jannik
id: '38705'
last_name: Castenow
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
citation:
ama: 'Braun M, Castenow J, Meyer auf der Heide F. Local Gathering of Mobile Robots
in Three Dimensions. In: Proceedings of the 27th Conference on Structural Information
and Communication Complexity (SIROCCO). Springer; 2020. doi:10.1007/978-3-030-54921-3_4'
apa: 'Braun, M., Castenow, J., & Meyer auf der Heide, F. (2020). Local Gathering
of Mobile Robots in Three Dimensions. In Proceedings of the 27th Conference
on Structural Information and Communication Complexity (SIROCCO). Paderborn:
Springer. https://doi.org/10.1007/978-3-030-54921-3_4'
bibtex: '@inproceedings{Braun_Castenow_Meyer auf der Heide_2020, title={Local Gathering
of Mobile Robots in Three Dimensions}, DOI={10.1007/978-3-030-54921-3_4},
booktitle={Proceedings of the 27th Conference on Structural Information and Communication
Complexity (SIROCCO)}, publisher={Springer}, author={Braun, Michael and Castenow,
Jannik and Meyer auf der Heide, Friedhelm}, year={2020} }'
chicago: Braun, Michael, Jannik Castenow, and Friedhelm Meyer auf der Heide. “Local
Gathering of Mobile Robots in Three Dimensions.” In Proceedings of the 27th
Conference on Structural Information and Communication Complexity (SIROCCO).
Springer, 2020. https://doi.org/10.1007/978-3-030-54921-3_4.
ieee: M. Braun, J. Castenow, and F. Meyer auf der Heide, “Local Gathering of Mobile
Robots in Three Dimensions,” in Proceedings of the 27th Conference on Structural
Information and Communication Complexity (SIROCCO), Paderborn, 2020.
mla: Braun, Michael, et al. “Local Gathering of Mobile Robots in Three Dimensions.”
Proceedings of the 27th Conference on Structural Information and Communication
Complexity (SIROCCO), Springer, 2020, doi:10.1007/978-3-030-54921-3_4.
short: 'M. Braun, J. Castenow, F. Meyer auf der Heide, in: Proceedings of the 27th
Conference on Structural Information and Communication Complexity (SIROCCO), Springer,
2020.'
conference:
end_date: 2020-07-01
location: Paderborn
name: SIROCCO 2020
start_date: 2020-06-29
date_created: 2020-05-18T06:48:35Z
date_updated: 2022-01-06T06:53:00Z
ddc:
- '000'
department:
- _id: '63'
doi: 10.1007/978-3-030-54921-3_4
external_id:
arxiv:
- arXiv:2005.07495
file:
- access_level: closed
content_type: application/pdf
creator: janniksu
date_created: 2020-07-31T08:22:16Z
date_updated: 2020-07-31T08:22:16Z
file_id: '17504'
file_name: localGathering.pdf
file_size: 505712
relation: main_file
success: 1
file_date_updated: 2020-07-31T08:22:16Z
has_accepted_license: '1'
language:
- iso: eng
publication: Proceedings of the 27th Conference on Structural Information and Communication
Complexity (SIROCCO)
publisher: Springer
status: public
title: Local Gathering of Mobile Robots in Three Dimensions
type: conference
user_id: '38705'
year: '2020'
...
---
_id: '17019'
abstract:
- lang: eng
text: The scientific impact of research papers is multi-dimensional and can be determined
quantitatively by means of citation analysis and qualitatively by means of content
analysis. Accounting for the widely acknowledged limitations of pure citation
analysis, we adopt a knowledge-based perspective on scientific impact to develop
a methodology for content-based citation analysis which allows determining how
papers have enabled knowledge development in subsequent research (knowledge impact).
As knowledge development differs between research genres, we develop a new knowledgebased
citation analysis methodology for the genre of standalone literature reviews (LRs).
We apply the suggested methodology to the IS business value domain by manually
coding 22 LRs and 1,228 citing papers (CPs) and show that the results challenge
the assumption that citations indicate knowledge impact. We derive implications
for distinguishing knowledge impact from citation impact in the LR genre. Finally,
we develop recommendations for authors of LRs, scientific evaluation committees
and editorial boards of journals how to apply and benefit from the suggested methodology,
and we discuss its efficiency and automatization.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Gerit
full_name: Wagner, Gerit
last_name: Wagner
- first_name: Alexander
full_name: Benlian, Alexander
last_name: Benlian
citation:
ama: 'Schryen G, Wagner G, Benlian A. Distinguishing Knowledge Impact from Citation
Impact: A Methodology for Analysing Knowledge Impact for the Literature Review
Genre.; 2020.'
apa: 'Schryen, G., Wagner, G., & Benlian, A. (2020). Distinguishing Knowledge
Impact from Citation Impact: A Methodology for Analysing Knowledge Impact for
the Literature Review Genre.'
bibtex: '@book{Schryen_Wagner_Benlian_2020, title={Distinguishing Knowledge Impact
from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature
Review Genre}, author={Schryen, Guido and Wagner, Gerit and Benlian, Alexander},
year={2020} }'
chicago: 'Schryen, Guido, Gerit Wagner, and Alexander Benlian. Distinguishing
Knowledge Impact from Citation Impact: A Methodology for Analysing Knowledge Impact
for the Literature Review Genre, 2020.'
ieee: 'G. Schryen, G. Wagner, and A. Benlian, Distinguishing Knowledge Impact
from Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature
Review Genre. 2020.'
mla: 'Schryen, Guido, et al. Distinguishing Knowledge Impact from Citation Impact:
A Methodology for Analysing Knowledge Impact for the Literature Review Genre.
2020.'
short: 'G. Schryen, G. Wagner, A. Benlian, Distinguishing Knowledge Impact from
Citation Impact: A Methodology for Analysing Knowledge Impact for the Literature
Review Genre, 2020.'
date_created: 2020-05-19T15:12:33Z
date_updated: 2022-01-06T06:53:02Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2020-05-19T15:09:28Z
date_updated: 2020-05-19T15:09:28Z
file_id: '17020'
file_name: SSRN-id3581789.pdf
file_size: 487351
relation: main_file
file_date_updated: 2020-05-19T15:09:28Z
has_accepted_license: '1'
keyword:
- Scientific impact
- knowledge impact
- content-based citation analysis
- methodology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://ssrn.com/abstract=3581789
oa: '1'
status: public
title: 'Distinguishing Knowledge Impact from Citation Impact: A Methodology for Analysing
Knowledge Impact for the Literature Review Genre'
type: working_paper
user_id: '61579'
year: '2020'
...
---
_id: '17082'
abstract:
- lang: eng
text: Data-parallel applications run on cluster of servers in a datacenter and their
communication triggers correlated resource demand on multiple links that can be
abstracted as coflow. They often desire predictable network performance, which
can be passed to network via coflow abstraction for application-aware network
scheduling. In this paper, we propose a heuristic and an optimization algorithm
for predictable network performance such that they guarantee coflows completion
within their deadlines. The algorithms also ensure high network utilization, i.e.,
it's work-conserving, and avoids starvation of coflows. We evaluate both algorithms
via trace-driven simulation and show that they admit 1.1x more coflows than the
Varys scheme while meeting their deadlines.
author:
- first_name: Asif
full_name: Hasnain, Asif
id: '63288'
last_name: Hasnain
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Hasnain A, Karl H. Coflow Scheduling with Performance Guarantees for Data
Center Applications. In: 2020 20th IEEE/ACM International Symposium on Cluster,
Cloud and Internet Computing (CCGRID). IEEE Computer Society; 2020. doi:https://doi.org/10.1109/CCGrid49817.2020.00010'
apa: 'Hasnain, A., & Karl, H. (2020). Coflow Scheduling with Performance Guarantees
for Data Center Applications. In 2020 20th IEEE/ACM International Symposium
on Cluster, Cloud and Internet Computing (CCGRID). Melbourne, Australia: IEEE
Computer Society. https://doi.org/10.1109/CCGrid49817.2020.00010'
bibtex: '@inproceedings{Hasnain_Karl_2020, title={Coflow Scheduling with Performance
Guarantees for Data Center Applications}, DOI={https://doi.org/10.1109/CCGrid49817.2020.00010},
booktitle={2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet
Computing (CCGRID)}, publisher={IEEE Computer Society}, author={Hasnain, Asif
and Karl, Holger}, year={2020} }'
chicago: Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees
for Data Center Applications.” In 2020 20th IEEE/ACM International Symposium
on Cluster, Cloud and Internet Computing (CCGRID). IEEE Computer Society,
2020. https://doi.org/10.1109/CCGrid49817.2020.00010.
ieee: A. Hasnain and H. Karl, “Coflow Scheduling with Performance Guarantees for
Data Center Applications,” in 2020 20th IEEE/ACM International Symposium on
Cluster, Cloud and Internet Computing (CCGRID), Melbourne, Australia, 2020.
mla: Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees
for Data Center Applications.” 2020 20th IEEE/ACM International Symposium on
Cluster, Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020,
doi:https://doi.org/10.1109/CCGrid49817.2020.00010.
short: 'A. Hasnain, H. Karl, in: 2020 20th IEEE/ACM International Symposium on Cluster,
Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020.'
conference:
location: Melbourne, Australia
name: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet
Computing (CCGRID)
date_created: 2020-06-06T07:40:45Z
date_updated: 2022-01-06T06:53:04Z
ddc:
- '000'
department:
- _id: '75'
doi: https://doi.org/10.1109/CCGrid49817.2020.00010
keyword:
- Coflow
- Scheduling
- Deadlines
- Data centers
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9139642
project:
- _id: '4'
name: SFB 901 - Project Area C
- _id: '16'
name: SFB 901 - Subproject C4
- _id: '1'
name: SFB 901
publication: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet
Computing (CCGRID)
publication_status: published
publisher: IEEE Computer Society
status: public
title: Coflow Scheduling with Performance Guarantees for Data Center Applications
type: conference
user_id: '63288'
year: '2020'
...
---
_id: '10596'
abstract:
- lang: eng
text: Multi-objective optimization is an active field of research that has many
applications. Owing to its success and because decision-making processes are becoming
more and more complex, there is a recent trend for incorporating many objectives
into such problems. The challenge with such problems, however, is that the dimensions
of the solution sets—the so-called Pareto sets and fronts—grow with the number
of objectives. It is thus no longer possible to compute or to approximate the
entire solution set of a given problem that contains many (e.g. more than three)
objectives. On the other hand, the computation of single solutions (e.g. via scalarization
methods) leads to unsatisfying results in many cases, even if user preferences
are incorporated. In this article, the Pareto Explorer tool is presented—a global/local
exploration tool for the treatment of many-objective optimization problems (MaOPs).
In the first step, a solution of the problem is computed via a global search algorithm
that ideally already includes user preferences. In the second step, a local search
along the Pareto set/front of the given MaOP is performed in user specified directions.
For this, several continuation-like procedures are proposed that can incorporate
preferences defined in decision, objective, or in weight space. The applicability
and usefulness of Pareto Explorer is demonstrated on benchmark problems as well
as on an application from industrial laundry design.
article_type: original
author:
- first_name: Oliver
full_name: Schütze, Oliver
last_name: Schütze
- first_name: Oliver
full_name: Cuate, Oliver
last_name: Cuate
- first_name: Adanay
full_name: Martín, Adanay
last_name: Martín
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: https://orcid.org/0000-0002-3389-793X
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
citation:
ama: 'Schütze O, Cuate O, Martín A, Peitz S, Dellnitz M. Pareto Explorer: a global/local
exploration tool for many-objective optimization problems. Engineering Optimization.
2020;52(5):832-855. doi:10.1080/0305215x.2019.1617286'
apa: 'Schütze, O., Cuate, O., Martín, A., Peitz, S., & Dellnitz, M. (2020).
Pareto Explorer: a global/local exploration tool for many-objective optimization
problems. Engineering Optimization, 52(5), 832–855. https://doi.org/10.1080/0305215x.2019.1617286'
bibtex: '@article{Schütze_Cuate_Martín_Peitz_Dellnitz_2020, title={Pareto Explorer:
a global/local exploration tool for many-objective optimization problems}, volume={52},
DOI={10.1080/0305215x.2019.1617286},
number={5}, journal={Engineering Optimization}, author={Schütze, Oliver and Cuate,
Oliver and Martín, Adanay and Peitz, Sebastian and Dellnitz, Michael}, year={2020},
pages={832–855} }'
chicago: 'Schütze, Oliver, Oliver Cuate, Adanay Martín, Sebastian Peitz, and Michael
Dellnitz. “Pareto Explorer: A Global/Local Exploration Tool for Many-Objective
Optimization Problems.” Engineering Optimization 52, no. 5 (2020): 832–55.
https://doi.org/10.1080/0305215x.2019.1617286.'
ieee: 'O. Schütze, O. Cuate, A. Martín, S. Peitz, and M. Dellnitz, “Pareto Explorer:
a global/local exploration tool for many-objective optimization problems,” Engineering
Optimization, vol. 52, no. 5, pp. 832–855, 2020.'
mla: 'Schütze, Oliver, et al. “Pareto Explorer: A Global/Local Exploration Tool
for Many-Objective Optimization Problems.” Engineering Optimization, vol.
52, no. 5, 2020, pp. 832–55, doi:10.1080/0305215x.2019.1617286.'
short: O. Schütze, O. Cuate, A. Martín, S. Peitz, M. Dellnitz, Engineering Optimization
52 (2020) 832–855.
date_created: 2019-07-10T08:14:39Z
date_updated: 2022-01-06T06:50:46Z
department:
- _id: '101'
doi: 10.1080/0305215x.2019.1617286
intvolume: ' 52'
issue: '5'
language:
- iso: eng
page: 832-855
publication: Engineering Optimization
publication_identifier:
issn:
- 0305-215X
- 1029-0273
publication_status: published
status: public
title: 'Pareto Explorer: a global/local exploration tool for many-objective optimization
problems'
type: journal_article
user_id: '47427'
volume: 52
year: '2020'
...
---
_id: '15628'
abstract:
- lang: eng
text: The three-dimensional (3D) crystal structures of the GAF3 domain of
cyanobacteriochrome Slr1393 (Synechocystis PCC6803)
carrying a phycocyanobilin chromophore could be solved in both 15-Z
dark-adapted state, Pr, λmax = 649 nm, and 15-E
photoproduct, Pg, λmax = 536 nm (resolution, 1.6 and 1.86
Å, respectively). The structural data allowed identifying the large spectral shift
of the Pr-to-Pg conversion as resulting from an out-of-plane rotation of the chromophore’s
peripheral rings and an outward movement of a short helix formed from a formerly
unstructured loop. In addition, a third structure (2.1-Å resolution) starting
from the photoproduct crystals allowed identification of elements that regulate
the absorption maxima. In this peculiar form, generated during X-ray exposition,
protein and chromophore conformation still resemble the photoproduct state, except
for the D-ring already in 15-Z configuration and tilted
out of plane akin the dark state. Due to its formation from the photoproduct,
it might be considered an early conformational change initiating the parental
state-recovering photocycle. The high quality and the distinct features of the
three forms allowed for applying quantum-chemical calculations in the framework
of multiscale modeling to rationalize the absorption maxima changes. A systematic
analysis of the PCB chromophore in the presence and absence of the protein environment
showed that the direct electrostatic effect is negligible on the spectral tuning.
However, the protein forces the outer pyrrole rings of the chromophore to deviate
from coplanarity, which is identified as the dominating factor for the color regulation.
article_number: '201910208'
author:
- first_name: Xiuling
full_name: Xu, Xiuling
last_name: Xu
- first_name: Astrid
full_name: Port, Astrid
last_name: Port
- first_name: Christian
full_name: Wiebeler, Christian
last_name: Wiebeler
- first_name: Kai-Hong
full_name: Zhao, Kai-Hong
last_name: Zhao
- first_name: Igor
full_name: Schapiro, Igor
last_name: Schapiro
- first_name: Wolfgang
full_name: Gärtner, Wolfgang
last_name: Gärtner
citation:
ama: Xu X, Port A, Wiebeler C, Zhao K-H, Schapiro I, Gärtner W. Structural Elements
Regulating the Photochromicity in a Cyanobacteriochrome. Proceedings of the
National Academy of Sciences. 2020. doi:10.1073/pnas.1910208117
apa: Xu, X., Port, A., Wiebeler, C., Zhao, K.-H., Schapiro, I., & Gärtner, W.
(2020). Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1910208117
bibtex: '@article{Xu_Port_Wiebeler_Zhao_Schapiro_Gärtner_2020, title={Structural
Elements Regulating the Photochromicity in a Cyanobacteriochrome}, DOI={10.1073/pnas.1910208117},
number={201910208}, journal={Proceedings of the National Academy of Sciences},
author={Xu, Xiuling and Port, Astrid and Wiebeler, Christian and Zhao, Kai-Hong
and Schapiro, Igor and Gärtner, Wolfgang}, year={2020} }'
chicago: Xu, Xiuling, Astrid Port, Christian Wiebeler, Kai-Hong Zhao, Igor Schapiro,
and Wolfgang Gärtner. “Structural Elements Regulating the Photochromicity in a
Cyanobacteriochrome.” Proceedings of the National Academy of Sciences,
2020. https://doi.org/10.1073/pnas.1910208117.
ieee: X. Xu, A. Port, C. Wiebeler, K.-H. Zhao, I. Schapiro, and W. Gärtner, “Structural
Elements Regulating the Photochromicity in a Cyanobacteriochrome,” Proceedings
of the National Academy of Sciences, 2020.
mla: Xu, Xiuling, et al. “Structural Elements Regulating the Photochromicity in
a Cyanobacteriochrome.” Proceedings of the National Academy of Sciences,
201910208, 2020, doi:10.1073/pnas.1910208117.
short: X. Xu, A. Port, C. Wiebeler, K.-H. Zhao, I. Schapiro, W. Gärtner, Proceedings
of the National Academy of Sciences (2020).
date_created: 2020-01-23T08:16:24Z
date_updated: 2022-01-06T06:52:30Z
doi: 10.1073/pnas.1910208117
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
status: public
title: Structural Elements Regulating the Photochromicity in a Cyanobacteriochrome
type: journal_article
user_id: '40778'
year: '2020'
...
---
_id: '15022'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. Parallel computational optimization in operations research: A new
integrative framework, literature review and research directions. European
Journal of Operational Research. 2020;287(1):1-18.'
apa: 'Schryen, G. (2020). Parallel computational optimization in operations research:
A new integrative framework, literature review and research directions. European
Journal of Operational Research, 287(1), 1–18.'
bibtex: '@article{Schryen_2020, title={Parallel computational optimization in operations
research: A new integrative framework, literature review and research directions},
volume={287}, number={1}, journal={European Journal of Operational Research},
publisher={Elsevier}, author={Schryen, Guido}, year={2020}, pages={1–18} }'
chicago: 'Schryen, Guido. “Parallel Computational Optimization in Operations Research:
A New Integrative Framework, Literature Review and Research Directions.” European
Journal of Operational Research 287, no. 1 (2020): 1–18.'
ieee: 'G. Schryen, “Parallel computational optimization in operations research:
A new integrative framework, literature review and research directions,” European
Journal of Operational Research, vol. 287, no. 1, pp. 1–18, 2020.'
mla: 'Schryen, Guido. “Parallel Computational Optimization in Operations Research:
A New Integrative Framework, Literature Review and Research Directions.” European
Journal of Operational Research, vol. 287, no. 1, Elsevier, 2020, pp. 1–18.'
short: G. Schryen, European Journal of Operational Research 287 (2020) 1–18.
date_created: 2019-11-18T11:11:00Z
date_updated: 2022-01-06T06:52:15Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2019-11-18T11:11:56Z
date_updated: 2020-03-05T10:37:02Z
file_id: '15023'
file_name: LR - OR and parallelization.pdf
file_size: 832170
relation: main_file
file_date_updated: 2020-03-05T10:37:02Z
has_accepted_license: '1'
intvolume: ' 287'
issue: '1'
language:
- iso: eng
oa: '1'
page: 1 - 18
publication: European Journal of Operational Research
publisher: Elsevier
status: public
title: 'Parallel computational optimization in operations research: A new integrative
framework, literature review and research directions'
type: journal_article
user_id: '61579'
volume: 287
year: '2020'
...
---
_id: '16213'
abstract:
- lang: eng
text: 'Automated synthesis of approximate circuits via functional approximations
is of prominent importance to provide efficiency in energy, runtime, and chip
area required to execute an application. Approximate circuits are usually obtained
either through analytical approximation methods leveraging approximate transformations
such as bit-width scaling or via iterative search-based optimization methods when
a library of approximate components, e.g., approximate adders and multipliers,
is available. For the latter, exploring the extremely large design space is challenging
in terms of both computations and quality of results. While the combination of
both methods can create more room for further approximations, the \textit{Design
Space Exploration}~(DSE) becomes a crucial issue. In this paper, we present such
a hybrid synthesis methodology that applies a low-cost analytical method followed
by parallel stochastic search-based optimization. We address the DSE challenge
through efficient pruning of the design space and skipping unnecessary expensive
testing and/or verification steps. The experimental results reveal up to 10.57x
area savings in comparison with both purely analytical or search-based approaches. '
author:
- first_name: Muhammad
full_name: Awais, Muhammad
id: '64665'
last_name: Awais
orcid: https://orcid.org/0000-0003-4148-2969
- first_name: Hassan
full_name: Ghasemzadeh Mohammadi, Hassan
id: '61186'
last_name: Ghasemzadeh Mohammadi
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
citation:
ama: 'Awais M, Ghasemzadeh Mohammadi H, Platzner M. A Hybrid Synthesis Methodology
for Approximate Circuits. In: Proceedings of the 30th ACM Great Lakes Symposium
on VLSI (GLSVLSI) 2020. ACM; 2020:421-426. doi:10.1145/3386263.3406952'
apa: 'Awais, M., Ghasemzadeh Mohammadi, H., & Platzner, M. (2020). A Hybrid
Synthesis Methodology for Approximate Circuits. In Proceedings of the 30th
ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020 (pp. 421–426). Beijing, China:
ACM. https://doi.org/10.1145/3386263.3406952'
bibtex: '@inproceedings{Awais_Ghasemzadeh Mohammadi_Platzner_2020, title={A Hybrid
Synthesis Methodology for Approximate Circuits}, DOI={10.1145/3386263.3406952},
booktitle={Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI)
2020}, publisher={ACM}, author={Awais, Muhammad and Ghasemzadeh Mohammadi, Hassan
and Platzner, Marco}, year={2020}, pages={421–426} }'
chicago: Awais, Muhammad, Hassan Ghasemzadeh Mohammadi, and Marco Platzner. “A Hybrid
Synthesis Methodology for Approximate Circuits.” In Proceedings of the 30th
ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020, 421–26. ACM, 2020. https://doi.org/10.1145/3386263.3406952.
ieee: M. Awais, H. Ghasemzadeh Mohammadi, and M. Platzner, “A Hybrid Synthesis Methodology
for Approximate Circuits,” in Proceedings of the 30th ACM Great Lakes Symposium
on VLSI (GLSVLSI) 2020, Beijing, China, 2020, pp. 421–426.
mla: Awais, Muhammad, et al. “A Hybrid Synthesis Methodology for Approximate Circuits.”
Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020,
ACM, 2020, pp. 421–26, doi:10.1145/3386263.3406952.
short: 'M. Awais, H. Ghasemzadeh Mohammadi, M. Platzner, in: Proceedings of the
30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020, ACM, 2020, pp. 421–426.'
conference:
location: Beijing, China
name: ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020
date_created: 2020-03-02T15:49:38Z
date_updated: 2022-01-06T06:52:45Z
department:
- _id: '78'
doi: 10.1145/3386263.3406952
language:
- iso: eng
page: 421-426
publication: Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI) 2020
publication_status: published
publisher: ACM
status: public
title: A Hybrid Synthesis Methodology for Approximate Circuits
type: conference
user_id: '64665'
year: '2020'
...
---
_id: '16219'
abstract:
- lang: eng
text: "Network function virtualization (NFV) proposes\r\nto replace physical middleboxes
with more flexible virtual\r\nnetwork functions (VNFs). To dynamically adjust
to everchanging\r\ntraffic demands, VNFs have to be instantiated and\r\ntheir
allocated resources have to be adjusted on demand.\r\nDeciding the amount of allocated
resources is non-trivial.\r\nExisting optimization approaches often assume fixed
resource\r\nrequirements for each VNF instance. However, this can easily\r\nlead
to either waste of resources or bad service quality if too\r\nmany or too few
resources are allocated.\r\n\r\nTo solve this problem, we train machine learning
models\r\non real VNF data, containing measurements of performance\r\nand resource
requirements. For each VNF, the trained models\r\ncan then accurately predict
the required resources to handle\r\na certain traffic load. We integrate these
machine learning\r\nmodels into an algorithm for joint VNF scaling and placement\r\nand
evaluate their impact on resulting VNF placements. Our\r\nevaluation based on
real-world data shows that using suitable\r\nmachine learning models effectively
avoids over- and underallocation\r\nof resources, leading to up to 12 times lower
resource\r\nconsumption and better service quality with up to 4.5 times\r\nlower
total delay than using standard fixed resource allocation."
author:
- first_name: Stefan Balthasar
full_name: Schneider, Stefan Balthasar
id: '35343'
last_name: Schneider
orcid: 0000-0001-8210-4011
- first_name: Narayanan Puthenpurayil
full_name: Satheeschandran, Narayanan Puthenpurayil
last_name: Satheeschandran
- first_name: Manuel
full_name: Peuster, Manuel
id: '13271'
last_name: Peuster
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Schneider SB, Satheeschandran NP, Peuster M, Karl H. Machine Learning for
Dynamic Resource Allocation in Network Function Virtualization. In: IEEE Conference
on Network Softwarization (NetSoft). IEEE; 2020.'
apa: 'Schneider, S. B., Satheeschandran, N. P., Peuster, M., & Karl, H. (2020).
Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.
In IEEE Conference on Network Softwarization (NetSoft). Ghent, Belgium:
IEEE.'
bibtex: '@inproceedings{Schneider_Satheeschandran_Peuster_Karl_2020, title={Machine
Learning for Dynamic Resource Allocation in Network Function Virtualization},
booktitle={IEEE Conference on Network Softwarization (NetSoft)}, publisher={IEEE},
author={Schneider, Stefan Balthasar and Satheeschandran, Narayanan Puthenpurayil
and Peuster, Manuel and Karl, Holger}, year={2020} }'
chicago: Schneider, Stefan Balthasar, Narayanan Puthenpurayil Satheeschandran, Manuel
Peuster, and Holger Karl. “Machine Learning for Dynamic Resource Allocation in
Network Function Virtualization.” In IEEE Conference on Network Softwarization
(NetSoft). IEEE, 2020.
ieee: S. B. Schneider, N. P. Satheeschandran, M. Peuster, and H. Karl, “Machine
Learning for Dynamic Resource Allocation in Network Function Virtualization,”
in IEEE Conference on Network Softwarization (NetSoft), Ghent, Belgium,
2020.
mla: Schneider, Stefan Balthasar, et al. “Machine Learning for Dynamic Resource
Allocation in Network Function Virtualization.” IEEE Conference on Network
Softwarization (NetSoft), IEEE, 2020.
short: 'S.B. Schneider, N.P. Satheeschandran, M. Peuster, H. Karl, in: IEEE Conference
on Network Softwarization (NetSoft), IEEE, 2020.'
conference:
location: Ghent, Belgium
name: IEEE Conference on Network Softwarization (NetSoft)
date_created: 2020-03-03T11:42:22Z
date_updated: 2022-01-06T06:52:46Z
ddc:
- '000'
department:
- _id: '75'
file:
- access_level: open_access
content_type: application/pdf
creator: stschn
date_created: 2020-03-03T11:42:16Z
date_updated: 2020-03-03T11:42:16Z
file_id: '16220'
file_name: ris_preprint.pdf
file_size: 476590
relation: main_file
file_date_updated: 2020-03-03T11:42:16Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '28'
grant_number: '761493'
name: 5G Development and validation platform for global industry-specific network
services and Apps
- _id: '1'
name: SFB 901
- _id: '4'
name: SFB 901 - Project Area C
- _id: '16'
name: SFB 901 - Subproject C4
publication: IEEE Conference on Network Softwarization (NetSoft)
publisher: IEEE
status: public
title: Machine Learning for Dynamic Resource Allocation in Network Function Virtualization
type: conference
user_id: '35343'
year: '2020'
...
---
_id: '16289'
abstract:
- lang: eng
text: In the development of model predictive controllers for PDE-constrained problems,
the use of reduced order models is essential to enable real-time applicability.
Besides local linearization approaches, proper orthogonal decomposition (POD)
has been most widely used in the past in order to derive such models. Due to the
huge advances concerning both theory as well as the numerical approximation, a
very promising alternative based on the Koopman operator has recently emerged.
In this chapter, we present two control strategies for model predictive control
of nonlinear PDEs using data-efficient approximations of the Koopman operator.
In the first one, the dynamic control system is replaced by a small number of
autonomous systems with different yet constant inputs. The control problem is
consequently transformed into a switching problem. In the second approach, a bilinear
surrogate model is obtained via a convex combination of these autonomous systems.
Using a recent convergence result for extended dynamic mode decomposition (EDMD),
convergence of the reduced objective function can be shown. We study the properties
of these two strategies with respect to solution quality, data requirements, and
complexity of the resulting optimization problem using the 1-dimensional Burgers
equation and the 2-dimensional Navier–Stokes equations as examples. Finally, an
extension for online adaptivity is presented.
author:
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: https://orcid.org/0000-0002-3389-793X
- first_name: Stefan
full_name: Klus, Stefan
last_name: Klus
citation:
ama: 'Peitz S, Klus S. Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced
Order Models Based on the Koopman Operator. In: Lecture Notes in Control and
Information Sciences. Vol 484. Lecture Notes in Control and Information Sciences.
Cham: Springer; 2020:257-282. doi:10.1007/978-3-030-35713-9_10'
apa: 'Peitz, S., & Klus, S. (2020). Feedback Control of Nonlinear PDEs Using
Data-Efficient Reduced Order Models Based on the Koopman Operator. In Lecture
Notes in Control and Information Sciences (Vol. 484, pp. 257–282). Cham: Springer.
https://doi.org/10.1007/978-3-030-35713-9_10'
bibtex: '@inbook{Peitz_Klus_2020, place={Cham}, series={Lecture Notes in Control
and Information Sciences}, title={Feedback Control of Nonlinear PDEs Using Data-Efficient
Reduced Order Models Based on the Koopman Operator}, volume={484}, DOI={10.1007/978-3-030-35713-9_10},
booktitle={Lecture Notes in Control and Information Sciences}, publisher={Springer},
author={Peitz, Sebastian and Klus, Stefan}, year={2020}, pages={257–282}, collection={Lecture
Notes in Control and Information Sciences} }'
chicago: 'Peitz, Sebastian, and Stefan Klus. “Feedback Control of Nonlinear PDEs
Using Data-Efficient Reduced Order Models Based on the Koopman Operator.” In Lecture
Notes in Control and Information Sciences, 484:257–82. Lecture Notes in Control
and Information Sciences. Cham: Springer, 2020. https://doi.org/10.1007/978-3-030-35713-9_10.'
ieee: 'S. Peitz and S. Klus, “Feedback Control of Nonlinear PDEs Using Data-Efficient
Reduced Order Models Based on the Koopman Operator,” in Lecture Notes in Control
and Information Sciences, vol. 484, Cham: Springer, 2020, pp. 257–282.'
mla: Peitz, Sebastian, and Stefan Klus. “Feedback Control of Nonlinear PDEs Using
Data-Efficient Reduced Order Models Based on the Koopman Operator.” Lecture
Notes in Control and Information Sciences, vol. 484, Springer, 2020, pp. 257–82,
doi:10.1007/978-3-030-35713-9_10.
short: 'S. Peitz, S. Klus, in: Lecture Notes in Control and Information Sciences,
Springer, Cham, 2020, pp. 257–282.'
date_created: 2020-03-13T12:38:52Z
date_updated: 2022-01-06T06:52:48Z
department:
- _id: '101'
doi: 10.1007/978-3-030-35713-9_10
intvolume: ' 484'
language:
- iso: eng
page: 257-282
place: Cham
publication: Lecture Notes in Control and Information Sciences
publication_identifier:
isbn:
- '9783030357122'
- '9783030357139'
issn:
- 0170-8643
- 1610-7411
publication_status: published
publisher: Springer
series_title: Lecture Notes in Control and Information Sciences
status: public
title: Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models
Based on the Koopman Operator
type: book_chapter
user_id: '47427'
volume: 484
year: '2020'
...
---
_id: '29939'
abstract:
- lang: eng
text: In this paper, a full-bridge modular multilevel converter (MMC) and two half-bridge-based
MMCs are evaluated for high-current low-voltage e.g. 100 - 400V DC-applications
such as electrolysis, arc welding or datacenters with DC-power distribution. Usually,
modular multilevel converters are used in high-voltage DC-applications (HVDC)
in the multiple kV-range, but to meet the needs of a high-current demand at low
output voltage levels, the modular converter concept requires adaptations. In
the proposed concept, the MMC is used to step-down the three-phase medium-voltage
of 10kV, and provide up to 1 MW to the load. Therefore, each module is extended
by an LLC resonant converter to adapt to the specific electrolyzers DC-voltage
range of 142 - 220V and to provide galvanic isolation. The six-arm MMC converter
with half-bridge modules can be simplified and optimized by removing three arms,
and thus halving the number of modules. In addition, the module voltage ripple
and capacitor losses are decreased by 22% and 30% respectively. By rearranging
the components of the half-bridge MMC to build a MMC consisting of grid-side full-bridge
modules, the voltage ripple is further reduced by 78% and capacitor losses by
64%, while ensuring identical costs and volume for all MMCs. Finally, the LLC
resonant converter is designed for the most efficient full-bridge MMC. The LLC
can not operate at resonance with a fixed nominal module voltage of 770V because
the output voltage is varying between 142 - 220V. By decreasing the module voltage
down to 600V, additional points of operation can be operated in resonance, and
the remaining are closer to resonance. The option to decrease the module voltage
down to 600V, increases the number of required modules per arm from 12 to 15,
which requires to balance the losses of the LLCs and the grid-side stages.
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Unruh R, Schafmeister F, Böcker J. Evaluation of MMCs for High-Power Low-Voltage
DC-Applications in Combination with the Module LLC-Design. In: 2020 22nd European
Conference on Power Electronics and Applications (EPE’20 ECCE Europe). IEEE;
2020. doi:10.23919/epe20ecceeurope43536.2020.9215687'
apa: Unruh, R., Schafmeister, F., & Böcker, J. (2020). Evaluation of MMCs for
High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.
2020 22nd European Conference on Power Electronics and Applications (EPE’20
ECCE Europe). 22nd European Conference on Power Electronics and Applications
(EPE’20 ECCE Europe), Lyon, France. https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687
bibtex: '@inproceedings{Unruh_Schafmeister_Böcker_2020, title={Evaluation of MMCs
for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design},
DOI={10.23919/epe20ecceeurope43536.2020.9215687},
booktitle={2020 22nd European Conference on Power Electronics and Applications
(EPE’20 ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Schafmeister,
Frank and Böcker, Joachim}, year={2020} }'
chicago: Unruh, Roland, Frank Schafmeister, and Joachim Böcker. “Evaluation of MMCs
for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.”
In 2020 22nd European Conference on Power Electronics and Applications (EPE’20
ECCE Europe). IEEE, 2020. https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687.
ieee: 'R. Unruh, F. Schafmeister, and J. Böcker, “Evaluation of MMCs for High-Power
Low-Voltage DC-Applications in Combination with the Module LLC-Design,” presented
at the 22nd European Conference on Power Electronics and Applications (EPE’20
ECCE Europe), Lyon, France, 2020, doi: 10.23919/epe20ecceeurope43536.2020.9215687.'
mla: Unruh, Roland, et al. “Evaluation of MMCs for High-Power Low-Voltage DC-Applications
in Combination with the Module LLC-Design.” 2020 22nd European Conference on
Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020, doi:10.23919/epe20ecceeurope43536.2020.9215687.
short: 'R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference
on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.'
conference:
end_date: 2020-09-11
location: Lyon, France
name: 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE
Europe)
start_date: 2020-09-07
date_created: 2022-02-21T16:33:14Z
date_updated: 2022-02-21T17:00:16Z
department:
- _id: '52'
doi: 10.23919/epe20ecceeurope43536.2020.9215687
keyword:
- Multilevel converters
- Resonant converter
- High voltage power converters
- ZVS Converters
- Combination MMC LLC
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9215687
publication: 2020 22nd European Conference on Power Electronics and Applications (EPE'20
ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination
with the Module LLC-Design
type: conference
user_id: '34289'
year: '2020'
...
---
_id: '21623'
abstract:
- lang: eng
text: |-
Micro- and smart grids (MSG) play an important role both for integrating
renewable energy sources in conventional electricity grids and for providing
power supply in remote areas. Modern MSGs are largely driven by power
electronic converters due to their high efficiency and flexibility.
Nevertheless, controlling MSGs is a challenging task due to highest
requirements on energy availability, safety and voltage quality within a wide
range of different MSG topologies. This results in a high demand for
comprehensive testing of new control concepts during their development phase
and comparisons with the state of the art in order to ensure their feasibility.
This applies in particular to data-driven control approaches from the field of
reinforcement learning (RL), whose stability and operating behavior can hardly
be evaluated a priori. Therefore, the OpenModelica Microgrid Gym (OMG) package,
an open-source software toolbox for the simulation and control optimization of
MSGs, is proposed. It is capable of modeling and simulating arbitrary MSG
topologies and offers a Python-based interface for plug \& play controller
testing. In particular, the standardized OpenAI Gym interface allows for easy
RL-based controller integration. Besides the presentation of the OMG toolbox,
application examples are highlighted including safe Bayesian optimization for
low-level controller tuning.
author:
- first_name: Henrik
full_name: Bode, Henrik
last_name: Bode
- first_name: Stefan
full_name: Heid, Stefan
last_name: Heid
- first_name: Daniel
full_name: Weber, Daniel
last_name: Weber
- first_name: Eyke
full_name: Hüllermeier, Eyke
last_name: Hüllermeier
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: Bode H, Heid S, Weber D, Hüllermeier E, Wallscheid O. Towards a Scalable and
Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid
Control. arXiv:200504869. Published online 2020.
apa: Bode, H., Heid, S., Weber, D., Hüllermeier, E., & Wallscheid, O. (2020).
Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for
Intelligent Microgrid Control. In arXiv:2005.04869.
bibtex: '@article{Bode_Heid_Weber_Hüllermeier_Wallscheid_2020, title={Towards a
Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent
Microgrid Control}, journal={arXiv:2005.04869}, author={Bode, Henrik and Heid,
Stefan and Weber, Daniel and Hüllermeier, Eyke and Wallscheid, Oliver}, year={2020}
}'
chicago: Bode, Henrik, Stefan Heid, Daniel Weber, Eyke Hüllermeier, and Oliver Wallscheid.
“Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for
Intelligent Microgrid Control.” ArXiv:2005.04869, 2020.
ieee: H. Bode, S. Heid, D. Weber, E. Hüllermeier, and O. Wallscheid, “Towards a
Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent
Microgrid Control,” arXiv:2005.04869. 2020.
mla: Bode, Henrik, et al. “Towards a Scalable and Flexible Simulation and Testing
Environment Toolbox for Intelligent Microgrid Control.” ArXiv:2005.04869,
2020.
short: H. Bode, S. Heid, D. Weber, E. Hüllermeier, O. Wallscheid, ArXiv:2005.04869
(2020).
date_created: 2021-04-14T10:29:08Z
date_updated: 2022-02-28T08:14:53Z
publication: arXiv:2005.04869
status: public
title: |-
Towards a Scalable and Flexible Simulation and Testing Environment
Toolbox for Intelligent Microgrid Control
type: preprint
user_id: '40880'
year: '2020'
...
---
_id: '16297'
abstract:
- lang: eng
text: "In real-world problems, uncertainties (e.g., errors in the measurement,\r\nprecision
errors) often lead to poor performance of numerical algorithms when\r\nnot explicitly
taken into account. This is also the case for control problems,\r\nwhere optimal
solutions can degrade in quality or even become infeasible. Thus,\r\nthere is
the need to design methods that can handle uncertainty. In this work,\r\nwe consider
nonlinear multi-objective optimal control problems with uncertainty\r\non the
initial conditions, and in particular their incorporation into a\r\nfeedback loop
via model predictive control (MPC). In multi-objective optimal\r\ncontrol, an
optimal compromise between multiple conflicting criteria has to be\r\nfound. For
such problems, not much has been reported in terms of uncertainties.\r\nTo address
this problem class, we design an offline/online framework to compute\r\nan approximation
of efficient control strategies. This approach is closely\r\nrelated to explicit
MPC for nonlinear systems, where the potentially expensive\r\noptimization problem
is solved in an offline phase in order to enable fast\r\nsolutions in the online
phase. In order to reduce the numerical cost of the\r\noffline phase, we exploit
symmetries in the control problems. Furthermore, in\r\norder to ensure optimality
of the solutions, we include an additional online\r\noptimization step, which
is considerably cheaper than the original\r\nmulti-objective optimization problem.
We test our framework on a car\r\nmaneuvering problem where safety and speed are
the objectives. The\r\nmulti-objective framework allows for online adaptations
of the desired\r\nobjective. Alternatively, an automatic scalarizing procedure
yields very\r\nefficient feedback controls. Our results show that the method is
capable of\r\ndesigning driving strategies that deal better with uncertainties
in the initial\r\nconditions, which translates into potentially safer and faster
driving\r\nstrategies."
author:
- first_name: Carlos Ignacio
full_name: Hernández Castellanos, Carlos Ignacio
last_name: Hernández Castellanos
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: https://orcid.org/0000-0002-3389-793X
citation:
ama: Hernández Castellanos CI, Ober-Blöbaum S, Peitz S. Explicit Multi-objective
Model Predictive Control for Nonlinear Systems Under Uncertainty. International
Journal of Robust and Nonlinear Control. 2020;30(17):7593-7618. doi:10.1002/rnc.5197
apa: Hernández Castellanos, C. I., Ober-Blöbaum, S., & Peitz, S. (2020). Explicit
Multi-objective Model Predictive Control for Nonlinear Systems Under Uncertainty.
International Journal of Robust and Nonlinear Control, 30(17), 7593–7618.
https://doi.org/10.1002/rnc.5197
bibtex: '@article{Hernández Castellanos_Ober-Blöbaum_Peitz_2020, title={Explicit
Multi-objective Model Predictive Control for Nonlinear Systems Under Uncertainty},
volume={30(17)}, DOI={10.1002/rnc.5197},
journal={International Journal of Robust and Nonlinear Control}, author={Hernández
Castellanos, Carlos Ignacio and Ober-Blöbaum, Sina and Peitz, Sebastian}, year={2020},
pages={7593–7618} }'
chicago: 'Hernández Castellanos, Carlos Ignacio, Sina Ober-Blöbaum, and Sebastian
Peitz. “Explicit Multi-Objective Model Predictive Control for Nonlinear Systems
Under Uncertainty.” International Journal of Robust and Nonlinear Control
30(17) (2020): 7593–7618. https://doi.org/10.1002/rnc.5197.'
ieee: 'C. I. Hernández Castellanos, S. Ober-Blöbaum, and S. Peitz, “Explicit Multi-objective
Model Predictive Control for Nonlinear Systems Under Uncertainty,” International
Journal of Robust and Nonlinear Control, vol. 30(17), pp. 7593–7618, 2020,
doi: 10.1002/rnc.5197.'
mla: Hernández Castellanos, Carlos Ignacio, et al. “Explicit Multi-Objective Model
Predictive Control for Nonlinear Systems Under Uncertainty.” International
Journal of Robust and Nonlinear Control, vol. 30(17), 2020, pp. 7593–618,
doi:10.1002/rnc.5197.
short: C.I. Hernández Castellanos, S. Ober-Blöbaum, S. Peitz, International Journal
of Robust and Nonlinear Control 30(17) (2020) 7593–7618.
date_created: 2020-03-13T12:45:56Z
date_updated: 2022-01-21T09:55:39Z
department:
- _id: '101'
doi: 10.1002/rnc.5197
language:
- iso: eng
page: 7593-7618
publication: International Journal of Robust and Nonlinear Control
status: public
title: Explicit Multi-objective Model Predictive Control for Nonlinear Systems Under
Uncertainty
type: journal_article
user_id: '15694'
volume: 30(17)
year: '2020'
...