---
_id: '48881'
abstract:
- lang: eng
text: 'Classic automated algorithm selection (AS) for (combinatorial) optimization
problems heavily relies on so-called instance features, i.e., numerical characteristics
of the problem at hand ideally extracted with computationally low-demanding routines.
For the traveling salesperson problem (TSP) a plethora of features have been suggested.
Most of these features are, if at all, only normalized imprecisely raising the
issue of feature values being strongly affected by the instance size. Such artifacts
may have detrimental effects on algorithm selection models. We propose a normalization
for two feature groups which stood out in multiple AS studies on the TSP: (a)
features based on a minimum spanning tree (MST) and (b) a k-nearest neighbor graph
(NNG) transformation of the input instance. To this end we theoretically derive
minimum and maximum values for properties of MSTs and k-NNGs of Euclidean graphs.
We analyze the differences in feature space between normalized versions of these
features and their unnormalized counterparts. Our empirical investigations on
various TSP benchmark sets point out that the feature scaling succeeds in eliminating
the effect of the instance size. Eventually, a proof-of-concept AS-study shows
promising results: models trained with normalized features tend to outperform
those trained with the respective vanilla features.'
author:
- first_name: Jonathan
full_name: Heins, Jonathan
last_name: Heins
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Janina
full_name: Pohl, Janina
last_name: Pohl
- first_name: Moritz
full_name: Seiler, Moritz
last_name: Seiler
- first_name: Heike
full_name: Trautmann, Heike
last_name: Trautmann
- first_name: Pascal
full_name: Kerschke, Pascal
last_name: Kerschke
citation:
ama: 'Heins J, Bossek J, Pohl J, Seiler M, Trautmann H, Kerschke P. On the Potential
of Normalized TSP Features for Automated Algorithm Selection. In: Proceedings
of the 16th ACM/SIGEVO Conference on Foundations of Genetic Algorithms. Association
for Computing Machinery; 2021:1–15.'
apa: Heins, J., Bossek, J., Pohl, J., Seiler, M., Trautmann, H., & Kerschke,
P. (2021). On the Potential of Normalized TSP Features for Automated Algorithm
Selection. In Proceedings of the 16th ACM/SIGEVO Conference on Foundations
of Genetic Algorithms (pp. 1–15). Association for Computing Machinery.
bibtex: '@inbook{Heins_Bossek_Pohl_Seiler_Trautmann_Kerschke_2021, place={New York,
NY, USA}, title={On the Potential of Normalized TSP Features for Automated Algorithm
Selection}, booktitle={Proceedings of the 16th ACM/SIGEVO Conference on Foundations
of Genetic Algorithms}, publisher={Association for Computing Machinery}, author={Heins,
Jonathan and Bossek, Jakob and Pohl, Janina and Seiler, Moritz and Trautmann,
Heike and Kerschke, Pascal}, year={2021}, pages={1–15} }'
chicago: 'Heins, Jonathan, Jakob Bossek, Janina Pohl, Moritz Seiler, Heike Trautmann,
and Pascal Kerschke. “On the Potential of Normalized TSP Features for Automated
Algorithm Selection.” In Proceedings of the 16th ACM/SIGEVO Conference on Foundations
of Genetic Algorithms, 1–15. New York, NY, USA: Association for Computing
Machinery, 2021.'
ieee: 'J. Heins, J. Bossek, J. Pohl, M. Seiler, H. Trautmann, and P. Kerschke, “On
the Potential of Normalized TSP Features for Automated Algorithm Selection,” in
Proceedings of the 16th ACM/SIGEVO Conference on Foundations of Genetic Algorithms,
New York, NY, USA: Association for Computing Machinery, 2021, pp. 1–15.'
mla: Heins, Jonathan, et al. “On the Potential of Normalized TSP Features for Automated
Algorithm Selection.” Proceedings of the 16th ACM/SIGEVO Conference on Foundations
of Genetic Algorithms, Association for Computing Machinery, 2021, pp. 1–15.
short: 'J. Heins, J. Bossek, J. Pohl, M. Seiler, H. Trautmann, P. Kerschke, in:
Proceedings of the 16th ACM/SIGEVO Conference on Foundations of Genetic Algorithms,
Association for Computing Machinery, New York, NY, USA, 2021, pp. 1–15.'
date_created: 2023-11-14T15:58:58Z
date_updated: 2023-12-13T10:47:23Z
department:
- _id: '819'
extern: '1'
keyword:
- automated algorithm selection
- graph theory
- instance features
- normalization
- traveling salesperson problem (TSP)
language:
- iso: eng
page: 1–15
place: New York, NY, USA
publication: Proceedings of the 16th ACM/SIGEVO Conference on Foundations of Genetic
Algorithms
publication_identifier:
isbn:
- 978-1-4503-8352-3
publisher: Association for Computing Machinery
status: public
title: On the Potential of Normalized TSP Features for Automated Algorithm Selection
type: book_chapter
user_id: '102979'
year: '2021'
...
---
_id: '48876'
abstract:
- lang: eng
text: In recent years, Evolutionary Algorithms (EAs) have frequently been adopted
to evolve instances for optimization problems that pose difficulties for one algorithm
while being rather easy for a competitor and vice versa. Typically, this is achieved
by either minimizing or maximizing the performance difference or ratio which serves
as the fitness function. Repeating this process is useful to gain insights into
strengths/weaknesses of certain algorithms or to build a set of instances with
strong performance differences as a foundation for automatic per-instance algorithm
selection or configuration. We contribute to this branch of research by proposing
fitness-functions to evolve instances that show large performance differences
for more than just two algorithms simultaneously. As a proof-of-principle, we
evolve instances of the multi-component Traveling Thief Problem (TTP) for three
incomplete TTP-solvers. Our results point out that our strategies are promising,
but unsurprisingly their success strongly relies on the algorithms’ performance
complementarity.
author:
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Markus
full_name: Wagner, Markus
last_name: Wagner
citation:
ama: 'Bossek J, Wagner M. Generating Instances with Performance Differences for
More than Just Two Algorithms. In: Proceedings of the Genetic and Evolutionary
Computation Conference Companion. GECCO’21. Association for Computing Machinery;
2021:1423–1432. doi:10.1145/3449726.3463165'
apa: Bossek, J., & Wagner, M. (2021). Generating Instances with Performance
Differences for More than Just Two Algorithms. Proceedings of the Genetic and
Evolutionary Computation Conference Companion, 1423–1432. https://doi.org/10.1145/3449726.3463165
bibtex: '@inproceedings{Bossek_Wagner_2021, place={New York, NY, USA}, series={GECCO’21},
title={Generating Instances with Performance Differences for More than Just Two
Algorithms}, DOI={10.1145/3449726.3463165},
booktitle={Proceedings of the Genetic and Evolutionary Computation Conference
Companion}, publisher={Association for Computing Machinery}, author={Bossek, Jakob
and Wagner, Markus}, year={2021}, pages={1423–1432}, collection={GECCO’21} }'
chicago: 'Bossek, Jakob, and Markus Wagner. “Generating Instances with Performance
Differences for More than Just Two Algorithms.” In Proceedings of the Genetic
and Evolutionary Computation Conference Companion, 1423–1432. GECCO’21. New
York, NY, USA: Association for Computing Machinery, 2021. https://doi.org/10.1145/3449726.3463165.'
ieee: 'J. Bossek and M. Wagner, “Generating Instances with Performance Differences
for More than Just Two Algorithms,” in Proceedings of the Genetic and Evolutionary
Computation Conference Companion, 2021, pp. 1423–1432, doi: 10.1145/3449726.3463165.'
mla: Bossek, Jakob, and Markus Wagner. “Generating Instances with Performance Differences
for More than Just Two Algorithms.” Proceedings of the Genetic and Evolutionary
Computation Conference Companion, Association for Computing Machinery, 2021,
pp. 1423–1432, doi:10.1145/3449726.3463165.
short: 'J. Bossek, M. Wagner, in: Proceedings of the Genetic and Evolutionary Computation
Conference Companion, Association for Computing Machinery, New York, NY, USA,
2021, pp. 1423–1432.'
date_created: 2023-11-14T15:58:57Z
date_updated: 2023-12-13T10:47:41Z
department:
- _id: '819'
doi: 10.1145/3449726.3463165
extern: '1'
keyword:
- evolutionary algorithms
- evolving instances
- fitness function
- instance hardness
- traveling thief problem (TTP)
language:
- iso: eng
page: 1423–1432
place: New York, NY, USA
publication: Proceedings of the Genetic and Evolutionary Computation Conference Companion
publication_identifier:
isbn:
- 978-1-4503-8351-6
publisher: Association for Computing Machinery
series_title: GECCO’21
status: public
title: Generating Instances with Performance Differences for More than Just Two Algorithms
type: conference
user_id: '102979'
year: '2021'
...
---
_id: '48854'
abstract:
- lang: eng
text: We contribute to the theoretical understanding of randomized search heuristics
for dynamic problems. We consider the classical vertex coloring problem on graphs
and investigate the dynamic setting where edges are added to the current graph.
We then analyze the expected time for randomized search heuristics to recompute
high quality solutions. The (1+1) Evolutionary Algorithm and RLS operate in a
setting where the number of colors is bounded and we are minimizing the number
of conflicts. Iterated local search algorithms use an unbounded color palette
and aim to use the smallest colors and, consequently, the smallest number of colors.
We identify classes of bipartite graphs where reoptimization is as hard as or
even harder than optimization from scratch, i.e., starting with a random initialization.
Even adding a single edge can lead to hard symmetry problems. However, graph classes
that are hard for one algorithm turn out to be easy for others. In most cases
our bounds show that reoptimization is faster than optimizing from scratch. We
further show that tailoring mutation operators to parts of the graph where changes
have occurred can significantly reduce the expected reoptimization time. In most
settings the expected reoptimization time for such tailored algorithms is linear
in the number of added edges. However, tailored algorithms cannot prevent exponential
times in settings where the original algorithm is inefficient.
author:
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Frank
full_name: Neumann, Frank
last_name: Neumann
- first_name: Pan
full_name: Peng, Pan
last_name: Peng
- first_name: Dirk
full_name: Sudholt, Dirk
last_name: Sudholt
citation:
ama: Bossek J, Neumann F, Peng P, Sudholt D. Time Complexity Analysis of Randomized
Search Heuristics for the Dynamic Graph Coloring Problem. Algorithmica.
2021;83(10):3148–3179. doi:10.1007/s00453-021-00838-3
apa: Bossek, J., Neumann, F., Peng, P., & Sudholt, D. (2021). Time Complexity
Analysis of Randomized Search Heuristics for the Dynamic Graph Coloring Problem.
Algorithmica, 83(10), 3148–3179. https://doi.org/10.1007/s00453-021-00838-3
bibtex: '@article{Bossek_Neumann_Peng_Sudholt_2021, title={Time Complexity Analysis
of Randomized Search Heuristics for the Dynamic Graph Coloring Problem}, volume={83},
DOI={10.1007/s00453-021-00838-3},
number={10}, journal={Algorithmica}, author={Bossek, Jakob and Neumann, Frank
and Peng, Pan and Sudholt, Dirk}, year={2021}, pages={3148–3179} }'
chicago: 'Bossek, Jakob, Frank Neumann, Pan Peng, and Dirk Sudholt. “Time Complexity
Analysis of Randomized Search Heuristics for the Dynamic Graph Coloring Problem.”
Algorithmica 83, no. 10 (2021): 3148–3179. https://doi.org/10.1007/s00453-021-00838-3.'
ieee: 'J. Bossek, F. Neumann, P. Peng, and D. Sudholt, “Time Complexity Analysis
of Randomized Search Heuristics for the Dynamic Graph Coloring Problem,” Algorithmica,
vol. 83, no. 10, pp. 3148–3179, 2021, doi: 10.1007/s00453-021-00838-3.'
mla: Bossek, Jakob, et al. “Time Complexity Analysis of Randomized Search Heuristics
for the Dynamic Graph Coloring Problem.” Algorithmica, vol. 83, no. 10,
2021, pp. 3148–3179, doi:10.1007/s00453-021-00838-3.
short: J. Bossek, F. Neumann, P. Peng, D. Sudholt, Algorithmica 83 (2021) 3148–3179.
date_created: 2023-11-14T15:58:54Z
date_updated: 2023-12-13T10:51:34Z
department:
- _id: '819'
doi: 10.1007/s00453-021-00838-3
intvolume: ' 83'
issue: '10'
keyword:
- Dynamic optimization
- Evolutionary algorithms
- Running time analysis
language:
- iso: eng
page: 3148–3179
publication: Algorithmica
publication_identifier:
issn:
- 0178-4617
status: public
title: Time Complexity Analysis of Randomized Search Heuristics for the Dynamic Graph
Coloring Problem
type: journal_article
user_id: '102979'
volume: 83
year: '2021'
...
---
_id: '24101'
abstract:
- lang: eng
text: Arburg Plastic Freeforming (APF) is an additive manufacturing process with
which three-dimensional, thermoplastic components can be produced layer by layer.
Visual and geometrical properties are a major criterion for characterizing the
resulting component quality. The aim of this study was to investigate the influences
on visual and geometrical properties of APF components depending on process parameters.
Initially the focus was on the analysis of the shrinkage behavior of ABS-M30 (Stratasys).
On the basis of the results and an existing procedure by the machine manufacturer,
an optimized procedure for determining the scaling factors was developed to counteract
the shrinkage. With this procedure a higher dimensional accuracy of the components
can be achieved. In addition, it was investigated whether an adaption of the form
factor based on a mathematical model depending on the component geometry makes
sense. The results were transferred into manufacturing guidelines, which allow
the user of the APF-technology to optimize process parameters more efficiently.
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Felix
full_name: Hecker, Felix
id: '45537'
last_name: Hecker
- first_name: Christian Lennart
full_name: Elsner, Christian Lennart
id: '70729'
last_name: Elsner
- first_name: André
full_name: Hirsch, André
id: '27599'
last_name: Hirsch
citation:
ama: 'Moritzer E, Hecker F, Elsner CL, Hirsch A. Investigations for the Optimization
of Visual and Geometrical Properties of Arburg Plastic Freeforming Components.
In: Bourell D, ed. Proceedings: 2021 Annual International Solid Freeform Fabrication
Symposium (SFF Symp 2021). ; 2021:467-474. doi:10.26153/tsw/17567'
apa: 'Moritzer, E., Hecker, F., Elsner, C. L., & Hirsch, A. (2021). Investigations
for the Optimization of Visual and Geometrical Properties of Arburg Plastic Freeforming
Components. In D. Bourell (Ed.), Proceedings: 2021 Annual International Solid
Freeform Fabrication Symposium (SFF Symp 2021) (pp. 467–474). https://doi.org/10.26153/tsw/17567'
bibtex: '@inproceedings{Moritzer_Hecker_Elsner_Hirsch_2021, title={Investigations
for the Optimization of Visual and Geometrical Properties of Arburg Plastic Freeforming
Components}, DOI={10.26153/tsw/17567},
booktitle={Proceedings: 2021 Annual International Solid Freeform Fabrication Symposium
(SFF Symp 2021)}, author={Moritzer, Elmar and Hecker, Felix and Elsner, Christian
Lennart and Hirsch, André}, editor={Bourell, David}, year={2021}, pages={467–474}
}'
chicago: 'Moritzer, Elmar, Felix Hecker, Christian Lennart Elsner, and André Hirsch.
“Investigations for the Optimization of Visual and Geometrical Properties of Arburg
Plastic Freeforming Components.” In Proceedings: 2021 Annual International
Solid Freeform Fabrication Symposium (SFF Symp 2021), edited by David Bourell,
467–74, 2021. https://doi.org/10.26153/tsw/17567.'
ieee: 'E. Moritzer, F. Hecker, C. L. Elsner, and A. Hirsch, “Investigations for
the Optimization of Visual and Geometrical Properties of Arburg Plastic Freeforming
Components,” in Proceedings: 2021 Annual International Solid Freeform Fabrication
Symposium (SFF Symp 2021), Austin, Texas, USA, 2021, pp. 467–474, doi: 10.26153/tsw/17567.'
mla: 'Moritzer, Elmar, et al. “Investigations for the Optimization of Visual and
Geometrical Properties of Arburg Plastic Freeforming Components.” Proceedings:
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021),
edited by David Bourell, 2021, pp. 467–74, doi:10.26153/tsw/17567.'
short: 'E. Moritzer, F. Hecker, C.L. Elsner, A. Hirsch, in: D. Bourell (Ed.), Proceedings:
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021),
2021, pp. 467–474.'
conference:
end_date: 2021-08-04
location: Austin, Texas, USA
name: 2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
start_date: 2021-08-02
date_created: 2021-09-10T06:54:35Z
date_updated: 2024-01-08T11:32:53Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
- _id: '219'
- _id: '624'
doi: 10.26153/tsw/17567
editor:
- first_name: David
full_name: Bourell, David
last_name: Bourell
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://utw10945.utweb.utexas.edu/2021-table-contents
oa: '1'
page: 467-474
publication: 'Proceedings: 2021 Annual International Solid Freeform Fabrication Symposium
(SFF Symp 2021)'
publication_status: published
status: public
title: Investigations for the Optimization of Visual and Geometrical Properties of
Arburg Plastic Freeforming Components
type: conference
user_id: '45537'
year: '2021'
...
---
_id: '47564'
author:
- first_name: Arnulf
full_name: Reitze, Arnulf
last_name: Reitze
- first_name: Marcus
full_name: Grünewald, Marcus
last_name: Grünewald
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
citation:
ama: Reitze A, Grünewald M, Riese J. Characterization of Liquid-Phase Distribution
in 3D Printed Structured Packings with an Enclosed Column Wall. Industrial
& Engineering Chemistry Research. 2021;61(1):740-746. doi:10.1021/acs.iecr.1c03931
apa: Reitze, A., Grünewald, M., & Riese, J. (2021). Characterization of Liquid-Phase
Distribution in 3D Printed Structured Packings with an Enclosed Column Wall. Industrial
& Engineering Chemistry Research, 61(1), 740–746. https://doi.org/10.1021/acs.iecr.1c03931
bibtex: '@article{Reitze_Grünewald_Riese_2021, title={Characterization of Liquid-Phase
Distribution in 3D Printed Structured Packings with an Enclosed Column Wall},
volume={61}, DOI={10.1021/acs.iecr.1c03931},
number={1}, journal={Industrial & Engineering Chemistry Research}, publisher={American
Chemical Society (ACS)}, author={Reitze, Arnulf and Grünewald, Marcus and Riese,
Julia}, year={2021}, pages={740–746} }'
chicago: 'Reitze, Arnulf, Marcus Grünewald, and Julia Riese. “Characterization of
Liquid-Phase Distribution in 3D Printed Structured Packings with an Enclosed Column
Wall.” Industrial & Engineering Chemistry Research 61, no. 1 (2021):
740–46. https://doi.org/10.1021/acs.iecr.1c03931.'
ieee: 'A. Reitze, M. Grünewald, and J. Riese, “Characterization of Liquid-Phase
Distribution in 3D Printed Structured Packings with an Enclosed Column Wall,”
Industrial & Engineering Chemistry Research, vol. 61, no. 1, pp.
740–746, 2021, doi: 10.1021/acs.iecr.1c03931.'
mla: Reitze, Arnulf, et al. “Characterization of Liquid-Phase Distribution in 3D
Printed Structured Packings with an Enclosed Column Wall.” Industrial &
Engineering Chemistry Research, vol. 61, no. 1, American Chemical Society
(ACS), 2021, pp. 740–46, doi:10.1021/acs.iecr.1c03931.
short: A. Reitze, M. Grünewald, J. Riese, Industrial & Engineering Chemistry
Research 61 (2021) 740–746.
date_created: 2023-10-04T14:16:01Z
date_updated: 2024-03-08T11:38:39Z
doi: 10.1021/acs.iecr.1c03931
extern: '1'
intvolume: ' 61'
issue: '1'
keyword:
- Industrial and Manufacturing Engineering
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
page: 740-746
publication: Industrial & Engineering Chemistry Research
publication_identifier:
issn:
- 0888-5885
- 1520-5045
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Characterization of Liquid-Phase Distribution in 3D Printed Structured Packings
with an Enclosed Column Wall
type: journal_article
user_id: '101499'
volume: 61
year: '2021'
...
---
_id: '47568'
author:
- first_name: Bastian
full_name: Bruns, Bastian
last_name: Bruns
- first_name: Felix
full_name: Herrmann, Felix
last_name: Herrmann
- first_name: Marcus
full_name: Grünewald, Marcus
last_name: Grünewald
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
citation:
ama: Bruns B, Herrmann F, Grünewald M, Riese J. Dynamic Design Optimization for
Flexible Process Equipment. Industrial & Engineering Chemistry Research.
2021;60(20):7678-7688. doi:10.1021/acs.iecr.1c00306
apa: Bruns, B., Herrmann, F., Grünewald, M., & Riese, J. (2021). Dynamic Design
Optimization for Flexible Process Equipment. Industrial & Engineering
Chemistry Research, 60(20), 7678–7688. https://doi.org/10.1021/acs.iecr.1c00306
bibtex: '@article{Bruns_Herrmann_Grünewald_Riese_2021, title={Dynamic Design Optimization
for Flexible Process Equipment}, volume={60}, DOI={10.1021/acs.iecr.1c00306},
number={20}, journal={Industrial & Engineering Chemistry Research}, publisher={American
Chemical Society (ACS)}, author={Bruns, Bastian and Herrmann, Felix and Grünewald,
Marcus and Riese, Julia}, year={2021}, pages={7678–7688} }'
chicago: 'Bruns, Bastian, Felix Herrmann, Marcus Grünewald, and Julia Riese. “Dynamic
Design Optimization for Flexible Process Equipment.” Industrial & Engineering
Chemistry Research 60, no. 20 (2021): 7678–88. https://doi.org/10.1021/acs.iecr.1c00306.'
ieee: 'B. Bruns, F. Herrmann, M. Grünewald, and J. Riese, “Dynamic Design Optimization
for Flexible Process Equipment,” Industrial & Engineering Chemistry
Research, vol. 60, no. 20, pp. 7678–7688, 2021, doi: 10.1021/acs.iecr.1c00306.'
mla: Bruns, Bastian, et al. “Dynamic Design Optimization for Flexible Process Equipment.”
Industrial & Engineering Chemistry Research, vol. 60, no. 20, American
Chemical Society (ACS), 2021, pp. 7678–88, doi:10.1021/acs.iecr.1c00306.
short: B. Bruns, F. Herrmann, M. Grünewald, J. Riese, Industrial & Engineering
Chemistry Research 60 (2021) 7678–7688.
date_created: 2023-10-04T14:16:46Z
date_updated: 2024-03-08T11:37:55Z
doi: 10.1021/acs.iecr.1c00306
extern: '1'
intvolume: ' 60'
issue: '20'
keyword:
- Industrial and Manufacturing Engineering
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
page: 7678-7688
publication: Industrial & Engineering Chemistry Research
publication_identifier:
issn:
- 0888-5885
- 1520-5045
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Dynamic Design Optimization for Flexible Process Equipment
type: journal_article
user_id: '101499'
volume: 60
year: '2021'
...
---
_id: '47570'
abstract:
- lang: eng
text: AbstractShortened product life cycles and
increased demand for specialized products lead to more challenges in efficiently
satisfying customer needs. Customer demands are increasingly uncertain in terms
of type, location, and volume. As a result, more flexible chemical production
plants are required. Modular small‐scale plants can be installed in transportation
containers and, therefore, offer the flexibility of easy relocation, enabling
production close to the customer or supplier. In a mathematical optimization model,
the economic benefit of small‐scale plants in the specialty chemicals market of
polymer production is analyzed. Different scenarios created from the real data
of a chemical company show that the use of small‐scale plants may lead to a significant
reduction in total costs that is mainly due to the transportation costs of raw
materials and products.
author:
- first_name: Bastian
full_name: Bruns, Bastian
last_name: Bruns
- first_name: Tristan
full_name: Becker, Tristan
last_name: Becker
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
- first_name: Stefan
full_name: Lier, Stefan
last_name: Lier
- first_name: Brigitte
full_name: Werners, Brigitte
last_name: Werners
citation:
ama: Bruns B, Becker T, Riese J, Lier S, Werners B. Efficient Production of Specialized
Polymers with Highly Flexible Small‐Scale Plants. Chemical Engineering &
Technology. 2021;44(6):1148-1152. doi:10.1002/ceat.202000591
apa: Bruns, B., Becker, T., Riese, J., Lier, S., & Werners, B. (2021). Efficient
Production of Specialized Polymers with Highly Flexible Small‐Scale Plants. Chemical
Engineering & Technology, 44(6), 1148–1152. https://doi.org/10.1002/ceat.202000591
bibtex: '@article{Bruns_Becker_Riese_Lier_Werners_2021, title={Efficient Production
of Specialized Polymers with Highly Flexible Small‐Scale Plants}, volume={44},
DOI={10.1002/ceat.202000591},
number={6}, journal={Chemical Engineering & Technology}, publisher={Wiley},
author={Bruns, Bastian and Becker, Tristan and Riese, Julia and Lier, Stefan and
Werners, Brigitte}, year={2021}, pages={1148–1152} }'
chicago: 'Bruns, Bastian, Tristan Becker, Julia Riese, Stefan Lier, and Brigitte
Werners. “Efficient Production of Specialized Polymers with Highly Flexible Small‐Scale
Plants.” Chemical Engineering & Technology 44, no. 6 (2021): 1148–52.
https://doi.org/10.1002/ceat.202000591.'
ieee: 'B. Bruns, T. Becker, J. Riese, S. Lier, and B. Werners, “Efficient Production
of Specialized Polymers with Highly Flexible Small‐Scale Plants,” Chemical
Engineering & Technology, vol. 44, no. 6, pp. 1148–1152, 2021, doi:
10.1002/ceat.202000591.'
mla: Bruns, Bastian, et al. “Efficient Production of Specialized Polymers with Highly
Flexible Small‐Scale Plants.” Chemical Engineering & Technology,
vol. 44, no. 6, Wiley, 2021, pp. 1148–52, doi:10.1002/ceat.202000591.
short: B. Bruns, T. Becker, J. Riese, S. Lier, B. Werners, Chemical Engineering
& Technology 44 (2021) 1148–1152.
date_created: 2023-10-04T14:17:08Z
date_updated: 2024-03-08T11:37:29Z
doi: 10.1002/ceat.202000591
extern: '1'
intvolume: ' 44'
issue: '6'
keyword:
- Industrial and Manufacturing Engineering
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
page: 1148-1152
publication: Chemical Engineering & Technology
publication_identifier:
issn:
- 0930-7516
- 1521-4125
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Efficient Production of Specialized Polymers with Highly Flexible Small‐Scale
Plants
type: journal_article
user_id: '101499'
volume: 44
year: '2021'
...
---
_id: '30693'
author:
- first_name: Matti
full_name: Grabo, Matti
id: '66520'
last_name: Grabo
- first_name: Lennart
full_name: Kuckuck, Lennart
last_name: Kuckuck
- first_name: Eugeny
full_name: Kenig, Eugeny
id: '665'
last_name: Kenig
citation:
ama: 'Grabo M, Kuckuck L, Kenig E. Optimization of packed bed latent heat storages
filled with PCM-capsules based on super-ellipsoids. In: ; 2021.'
apa: Grabo, M., Kuckuck, L., & Kenig, E. (2021). Optimization of packed bed
latent heat storages filled with PCM-capsules based on super-ellipsoids. 16th
Conference on Sustainable Development of Energy, Water and Environment Systems,
Dubrovnik.
bibtex: '@inproceedings{Grabo_Kuckuck_Kenig_2021, title={Optimization of packed
bed latent heat storages filled with PCM-capsules based on super-ellipsoids},
author={Grabo, Matti and Kuckuck, Lennart and Kenig, Eugeny}, year={2021} }'
chicago: Grabo, Matti, Lennart Kuckuck, and Eugeny Kenig. “Optimization of Packed
Bed Latent Heat Storages Filled with PCM-Capsules Based on Super-Ellipsoids,”
2021.
ieee: M. Grabo, L. Kuckuck, and E. Kenig, “Optimization of packed bed latent heat
storages filled with PCM-capsules based on super-ellipsoids,” presented at the
16th Conference on Sustainable Development of Energy, Water and Environment Systems,
Dubrovnik, 2021.
mla: Grabo, Matti, et al. Optimization of Packed Bed Latent Heat Storages Filled
with PCM-Capsules Based on Super-Ellipsoids. 2021.
short: 'M. Grabo, L. Kuckuck, E. Kenig, in: 2021.'
conference:
end_date: 2021-10-15
location: Dubrovnik
name: 16th Conference on Sustainable Development of Energy, Water and Environment
Systems
start_date: 2021-10-10
date_created: 2022-03-29T09:12:48Z
date_updated: 2024-03-18T13:25:03Z
department:
- _id: '9'
- _id: '145'
language:
- iso: eng
quality_controlled: '1'
status: public
title: Optimization of packed bed latent heat storages filled with PCM-capsules based
on super-ellipsoids
type: conference
user_id: '66520'
year: '2021'
...
---
_id: '52665'
author:
- first_name: Michael
full_name: Hillebrand, Michael
id: '83856'
last_name: Hillebrand
citation:
ama: Hillebrand M. Entwicklungssystematik Zur Integration von Eigenschaften Der
Selbstheilung in Intelligente Technische Systeme . Vol Band 403.; 2021.
apa: 'Hillebrand, M. (2021). Entwicklungssystematik zur Integration von Eigenschaften
der Selbstheilung in Intelligente Technische Systeme : Vol. Band 403.'
bibtex: '@book{Hillebrand_2021, series={HNI-Verlagsschriftreihe}, title={Entwicklungssystematik
zur Integration von Eigenschaften der Selbstheilung in Intelligente Technische
Systeme }, volume={Band 403}, author={Hillebrand, Michael}, year={2021}, collection={HNI-Verlagsschriftreihe}
}'
chicago: Hillebrand, Michael. Entwicklungssystematik Zur Integration von Eigenschaften
Der Selbstheilung in Intelligente Technische Systeme . Vol. Band 403. HNI-Verlagsschriftreihe,
2021.
ieee: M. Hillebrand, Entwicklungssystematik zur Integration von Eigenschaften
der Selbstheilung in Intelligente Technische Systeme , vol. Band 403. 2021.
mla: Hillebrand, Michael. Entwicklungssystematik Zur Integration von Eigenschaften
Der Selbstheilung in Intelligente Technische Systeme . 2021.
short: M. Hillebrand, Entwicklungssystematik Zur Integration von Eigenschaften Der
Selbstheilung in Intelligente Technische Systeme , 2021.
date_created: 2024-03-20T10:07:10Z
date_updated: 2024-04-02T09:47:42Z
department:
- _id: '26'
language:
- iso: eng
publication_identifier:
isbn:
- 978-3-947647-22-4
series_title: HNI-Verlagsschriftreihe
status: public
title: 'Entwicklungssystematik zur Integration von Eigenschaften der Selbstheilung
in Intelligente Technische Systeme '
type: dissertation
user_id: '5786'
volume: Band 403
year: '2021'
...
---
_id: '35744'
author:
- first_name: Rolf
full_name: Biehler, Rolf
id: '16274'
last_name: Biehler
- first_name: Hans-Georg
full_name: Weigand, Hans-Georg
last_name: Weigand
citation:
ama: Biehler R, Weigand H-G. 3D-Geometrie–virtuell und real. mathematik lehren.
2021;2021(228):2–5.
apa: Biehler, R., & Weigand, H.-G. (2021). 3D-Geometrie–virtuell und real. mathematik
lehren, 2021(228), 2–5.
bibtex: '@article{Biehler_Weigand_2021, title={3D-Geometrie–virtuell und real},
volume={2021}, number={228}, journal={mathematik lehren}, publisher={Friedrich
Verlag}, author={Biehler, Rolf and Weigand, Hans-Georg}, year={2021}, pages={2–5}
}'
chicago: 'Biehler, Rolf, and Hans-Georg Weigand. “3D-Geometrie–virtuell und real.”
mathematik lehren 2021, no. 228 (2021): 2–5.'
ieee: R. Biehler and H.-G. Weigand, “3D-Geometrie–virtuell und real,” mathematik
lehren, vol. 2021, no. 228, pp. 2–5, 2021.
mla: Biehler, Rolf, and Hans-Georg Weigand. “3D-Geometrie–virtuell und real.” mathematik
lehren, vol. 2021, no. 228, Friedrich Verlag, 2021, pp. 2–5.
short: R. Biehler, H.-G. Weigand, mathematik lehren 2021 (2021) 2–5.
date_created: 2023-01-10T10:12:01Z
date_updated: 2024-04-18T09:47:06Z
department:
- _id: '363'
intvolume: ' 2021'
issue: '228'
language:
- iso: ger
page: 2–5
publication: mathematik lehren
publisher: Friedrich Verlag
status: public
title: 3D-Geometrie–virtuell und real
type: journal_article
user_id: '37888'
volume: 2021
year: '2021'
...
---
_id: '35761'
author:
- first_name: Lukas
full_name: Höper, Lukas
last_name: Höper
- first_name: Leah
full_name: Malin, Leah
last_name: Malin
- first_name: Rolf
full_name: Biehler, Rolf
id: '16274'
last_name: Biehler
citation:
ama: 'Höper L, Malin L, Biehler R. Schatten von 3D-Objekten: Modellierung mit GeoGebra
3D und Anwendungen in der Computergrafik. mathematik lehren. 2021;2021(228):19–22.'
apa: 'Höper, L., Malin, L., & Biehler, R. (2021). Schatten von 3D-Objekten:
Modellierung mit GeoGebra 3D und Anwendungen in der Computergrafik. mathematik
lehren, 2021(228), 19–22.'
bibtex: '@article{Höper_Malin_Biehler_2021, title={Schatten von 3D-Objekten: Modellierung
mit GeoGebra 3D und Anwendungen in der Computergrafik}, volume={2021}, number={228},
journal={mathematik lehren}, publisher={Friedrich Verlag}, author={Höper, Lukas
and Malin, Leah and Biehler, Rolf}, year={2021}, pages={19–22} }'
chicago: 'Höper, Lukas, Leah Malin, and Rolf Biehler. “Schatten von 3D-Objekten:
Modellierung mit GeoGebra 3D und Anwendungen in der Computergrafik.” mathematik
lehren 2021, no. 228 (2021): 19–22.'
ieee: 'L. Höper, L. Malin, and R. Biehler, “Schatten von 3D-Objekten: Modellierung
mit GeoGebra 3D und Anwendungen in der Computergrafik,” mathematik lehren,
vol. 2021, no. 228, pp. 19–22, 2021.'
mla: 'Höper, Lukas, et al. “Schatten von 3D-Objekten: Modellierung mit GeoGebra
3D und Anwendungen in der Computergrafik.” mathematik lehren, vol. 2021,
no. 228, Friedrich Verlag, 2021, pp. 19–22.'
short: L. Höper, L. Malin, R. Biehler, mathematik lehren 2021 (2021) 19–22.
date_created: 2023-01-10T10:28:38Z
date_updated: 2024-04-18T09:48:12Z
department:
- _id: '363'
intvolume: ' 2021'
issue: '228'
language:
- iso: ger
page: 19–22
publication: mathematik lehren
publisher: Friedrich Verlag
status: public
title: 'Schatten von 3D-Objekten: Modellierung mit GeoGebra 3D und Anwendungen in
der Computergrafik'
type: journal_article
user_id: '37888'
volume: 2021
year: '2021'
...
---
_id: '35763'
author:
- first_name: Sven
full_name: Hüsing, Sven
id: '58465'
last_name: Hüsing
- first_name: Niklas
full_name: Weiser, Niklas
last_name: Weiser
- first_name: Rolf
full_name: Biehler, Rolf
id: '16274'
last_name: Biehler
citation:
ama: 'Hüsing S, Weiser N, Biehler R. Faszination 3D-Film: Entwicklung einer 3D-Konstruktion.
mathematik lehren. 2021;2021(228):23–27.'
apa: 'Hüsing, S., Weiser, N., & Biehler, R. (2021). Faszination 3D-Film: Entwicklung
einer 3D-Konstruktion. mathematik lehren, 2021(228), 23–27.'
bibtex: '@article{Hüsing_Weiser_Biehler_2021, title={Faszination 3D-Film: Entwicklung
einer 3D-Konstruktion}, volume={2021}, number={228}, journal={mathematik lehren},
publisher={Friedrich Verlag}, author={Hüsing, Sven and Weiser, Niklas and Biehler,
Rolf}, year={2021}, pages={23–27} }'
chicago: 'Hüsing, Sven, Niklas Weiser, and Rolf Biehler. “Faszination 3D-Film: Entwicklung
einer 3D-Konstruktion.” mathematik lehren 2021, no. 228 (2021): 23–27.'
ieee: 'S. Hüsing, N. Weiser, and R. Biehler, “Faszination 3D-Film: Entwicklung einer
3D-Konstruktion,” mathematik lehren, vol. 2021, no. 228, pp. 23–27, 2021.'
mla: 'Hüsing, Sven, et al. “Faszination 3D-Film: Entwicklung einer 3D-Konstruktion.”
mathematik lehren, vol. 2021, no. 228, Friedrich Verlag, 2021, pp. 23–27.'
short: S. Hüsing, N. Weiser, R. Biehler, mathematik lehren 2021 (2021) 23–27.
date_created: 2023-01-10T10:29:36Z
date_updated: 2024-04-18T09:48:24Z
department:
- _id: '363'
intvolume: ' 2021'
issue: '228'
language:
- iso: ger
page: 23–27
publication: mathematik lehren
publisher: Friedrich Verlag
status: public
title: 'Faszination 3D-Film: Entwicklung einer 3D-Konstruktion'
type: journal_article
user_id: '37888'
volume: 2021
year: '2021'
...
---
_id: '53874'
author:
- first_name: Mehdi
full_name: Rastegar, Mehdi
last_name: Rastegar
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Afshin
full_name: Meraj, Afshin
last_name: Meraj
- first_name: Hassan
full_name: Mina, Hassan
last_name: Mina
citation:
ama: Rastegar M, Tavana M, Meraj A, Mina H. An inventory-location optimization model
for equitable influenza vaccine distribution in developing countries during the
COVID-19 pandemic. Vaccine. 2021;39(3):495-504. doi:10.1016/j.vaccine.2020.12.022
apa: Rastegar, M., Tavana, M., Meraj, A., & Mina, H. (2021). An inventory-location
optimization model for equitable influenza vaccine distribution in developing
countries during the COVID-19 pandemic. Vaccine, 39(3), 495–504.
https://doi.org/10.1016/j.vaccine.2020.12.022
bibtex: '@article{Rastegar_Tavana_Meraj_Mina_2021, title={An inventory-location
optimization model for equitable influenza vaccine distribution in developing
countries during the COVID-19 pandemic}, volume={39}, DOI={10.1016/j.vaccine.2020.12.022},
number={3}, journal={Vaccine}, publisher={Elsevier BV}, author={Rastegar, Mehdi
and Tavana, Madjid and Meraj, Afshin and Mina, Hassan}, year={2021}, pages={495–504}
}'
chicago: 'Rastegar, Mehdi, Madjid Tavana, Afshin Meraj, and Hassan Mina. “An Inventory-Location
Optimization Model for Equitable Influenza Vaccine Distribution in Developing
Countries during the COVID-19 Pandemic.” Vaccine 39, no. 3 (2021): 495–504.
https://doi.org/10.1016/j.vaccine.2020.12.022.'
ieee: 'M. Rastegar, M. Tavana, A. Meraj, and H. Mina, “An inventory-location optimization
model for equitable influenza vaccine distribution in developing countries during
the COVID-19 pandemic,” Vaccine, vol. 39, no. 3, pp. 495–504, 2021, doi:
10.1016/j.vaccine.2020.12.022.'
mla: Rastegar, Mehdi, et al. “An Inventory-Location Optimization Model for Equitable
Influenza Vaccine Distribution in Developing Countries during the COVID-19 Pandemic.”
Vaccine, vol. 39, no. 3, Elsevier BV, 2021, pp. 495–504, doi:10.1016/j.vaccine.2020.12.022.
short: M. Rastegar, M. Tavana, A. Meraj, H. Mina, Vaccine 39 (2021) 495–504.
date_created: 2024-05-04T14:34:46Z
date_updated: 2024-05-04T15:12:54Z
department:
- _id: '277'
doi: 10.1016/j.vaccine.2020.12.022
intvolume: ' 39'
issue: '3'
language:
- iso: eng
page: 495-504
publication: Vaccine
publication_identifier:
issn:
- 0264-410X
publication_status: published
publisher: Elsevier BV
status: public
title: An inventory-location optimization model for equitable influenza vaccine distribution
in developing countries during the COVID-19 pandemic
type: journal_article
user_id: '51811'
volume: 39
year: '2021'
...
---
_id: '53880'
article_number: '12728'
author:
- first_name: Habib
full_name: Zare, Habib
last_name: Zare
- first_name: Mahyar
full_name: Kamali Saraji, Mahyar
last_name: Kamali Saraji
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Dalia
full_name: Streimikiene, Dalia
last_name: Streimikiene
- first_name: Fausto
full_name: Cavallaro, Fausto
last_name: Cavallaro
citation:
ama: Zare H, Kamali Saraji M, Tavana M, Streimikiene D, Cavallaro F. An Integrated
Fuzzy Goal Programming—Theory of Constraints Model for Production Planning and
Optimization. Sustainability. 2021;13(22). doi:10.3390/su132212728
apa: Zare, H., Kamali Saraji, M., Tavana, M., Streimikiene, D., & Cavallaro,
F. (2021). An Integrated Fuzzy Goal Programming—Theory of Constraints Model for
Production Planning and Optimization. Sustainability, 13(22), Article
12728. https://doi.org/10.3390/su132212728
bibtex: '@article{Zare_Kamali Saraji_Tavana_Streimikiene_Cavallaro_2021, title={An
Integrated Fuzzy Goal Programming—Theory of Constraints Model for Production Planning
and Optimization}, volume={13}, DOI={10.3390/su132212728},
number={2212728}, journal={Sustainability}, publisher={MDPI AG}, author={Zare,
Habib and Kamali Saraji, Mahyar and Tavana, Madjid and Streimikiene, Dalia and
Cavallaro, Fausto}, year={2021} }'
chicago: Zare, Habib, Mahyar Kamali Saraji, Madjid Tavana, Dalia Streimikiene, and
Fausto Cavallaro. “An Integrated Fuzzy Goal Programming—Theory of Constraints
Model for Production Planning and Optimization.” Sustainability 13, no.
22 (2021). https://doi.org/10.3390/su132212728.
ieee: 'H. Zare, M. Kamali Saraji, M. Tavana, D. Streimikiene, and F. Cavallaro,
“An Integrated Fuzzy Goal Programming—Theory of Constraints Model for Production
Planning and Optimization,” Sustainability, vol. 13, no. 22, Art. no. 12728,
2021, doi: 10.3390/su132212728.'
mla: Zare, Habib, et al. “An Integrated Fuzzy Goal Programming—Theory of Constraints
Model for Production Planning and Optimization.” Sustainability, vol. 13,
no. 22, 12728, MDPI AG, 2021, doi:10.3390/su132212728.
short: H. Zare, M. Kamali Saraji, M. Tavana, D. Streimikiene, F. Cavallaro, Sustainability
13 (2021).
date_created: 2024-05-04T14:47:30Z
date_updated: 2024-05-04T15:13:09Z
department:
- _id: '277'
doi: 10.3390/su132212728
intvolume: ' 13'
issue: '22'
language:
- iso: eng
publication: Sustainability
publication_identifier:
issn:
- 2071-1050
publication_status: published
publisher: MDPI AG
status: public
title: An Integrated Fuzzy Goal Programming—Theory of Constraints Model for Production
Planning and Optimization
type: journal_article
user_id: '51811'
volume: 13
year: '2021'
...
---
_id: '53875'
author:
- first_name: Elmira
full_name: Gheisariha, Elmira
last_name: Gheisariha
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Fariborz
full_name: Jolai, Fariborz
last_name: Jolai
- first_name: Meysam
full_name: Rabiee, Meysam
last_name: Rabiee
citation:
ama: Gheisariha E, Tavana M, Jolai F, Rabiee M. A simulation–optimization model
for solving flexible flow shop scheduling problems with rework and transportation.
Mathematics and Computers in Simulation. 2021;180:152-178. doi:10.1016/j.matcom.2020.08.019
apa: Gheisariha, E., Tavana, M., Jolai, F., & Rabiee, M. (2021). A simulation–optimization
model for solving flexible flow shop scheduling problems with rework and transportation.
Mathematics and Computers in Simulation, 180, 152–178. https://doi.org/10.1016/j.matcom.2020.08.019
bibtex: '@article{Gheisariha_Tavana_Jolai_Rabiee_2021, title={A simulation–optimization
model for solving flexible flow shop scheduling problems with rework and transportation},
volume={180}, DOI={10.1016/j.matcom.2020.08.019},
journal={Mathematics and Computers in Simulation}, publisher={Elsevier BV}, author={Gheisariha,
Elmira and Tavana, Madjid and Jolai, Fariborz and Rabiee, Meysam}, year={2021},
pages={152–178} }'
chicago: 'Gheisariha, Elmira, Madjid Tavana, Fariborz Jolai, and Meysam Rabiee.
“A Simulation–Optimization Model for Solving Flexible Flow Shop Scheduling Problems
with Rework and Transportation.” Mathematics and Computers in Simulation
180 (2021): 152–78. https://doi.org/10.1016/j.matcom.2020.08.019.'
ieee: 'E. Gheisariha, M. Tavana, F. Jolai, and M. Rabiee, “A simulation–optimization
model for solving flexible flow shop scheduling problems with rework and transportation,”
Mathematics and Computers in Simulation, vol. 180, pp. 152–178, 2021, doi:
10.1016/j.matcom.2020.08.019.'
mla: Gheisariha, Elmira, et al. “A Simulation–Optimization Model for Solving Flexible
Flow Shop Scheduling Problems with Rework and Transportation.” Mathematics
and Computers in Simulation, vol. 180, Elsevier BV, 2021, pp. 152–78, doi:10.1016/j.matcom.2020.08.019.
short: E. Gheisariha, M. Tavana, F. Jolai, M. Rabiee, Mathematics and Computers
in Simulation 180 (2021) 152–178.
date_created: 2024-05-04T14:39:44Z
date_updated: 2024-05-04T15:12:56Z
department:
- _id: '277'
doi: 10.1016/j.matcom.2020.08.019
intvolume: ' 180'
language:
- iso: eng
page: 152-178
publication: Mathematics and Computers in Simulation
publication_identifier:
issn:
- 0378-4754
publication_status: published
publisher: Elsevier BV
status: public
title: A simulation–optimization model for solving flexible flow shop scheduling problems
with rework and transportation
type: journal_article
user_id: '51811'
volume: 180
year: '2021'
...
---
_id: '27508'
abstract:
- lang: eng
text: To analyze the influence of suspension kinematics on tire wear, detailed
simulation models are required. In this study, a non-linear, flexible multibody
model of a rear axle system is built up in the simulation software MSC Adams/View.
The physical model comprises the suspension kinematics, compliance, and dynamics
as well as the non-linear behavior of the tire using the FTire model. FTire is
chosen because it has a separate tire tread model to compute the contact pressure
and friction force distribution in the tire contact patch. To build up the simulation
model, a large amount of data is needed. Bushings, spring, and damper characteristics
are modeled based on measurements. For the structural components (e.g., control
arms), reverse engineering techniques are used. The components are 3D-scanned,
reworked, and included as a modal reduced finite element (FE)-model using component
mode synthesis by Craig–Bampton. Finally, the suspension model is validated by
comparing the simulated kinematic and compliance characteristics to experimental
results. To investigate the interaction of suspension kinematics and tire wear,
straight line driving events, such as acceleration, driving with constant velocity,
and deceleration, are simulated with different setups of wheel suspension kinematics.
The influence of the setups on the resulting friction work between tire and road
is examined, and an exemplarily calculation of tire wear based on a validated
FTire tire model is carried out. The results demonstrate, on the one hand, that
the chosen concept of elasto-kinematic axle leads to a relatively good match with
experimental results and, on the other hand, that there are significant possibilities
to reduce tire wear by adjusting the suspension kinematics.
author:
- first_name: Jan
full_name: Schütte, Jan
id: '22109'
last_name: Schütte
orcid: 0000-0001-9025-9742
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Schütte J, Sextro W. Tire Wear Reduction Based on an Extended Multibody Rear
Axle Model. Vehicles. Published online 2021:233-256. doi:10.3390/vehicles3020015
apa: Schütte, J., & Sextro, W. (2021). Tire Wear Reduction Based on an Extended
Multibody Rear Axle Model. Vehicles, 233–256. https://doi.org/10.3390/vehicles3020015
bibtex: '@article{Schütte_Sextro_2021, title={Tire Wear Reduction Based on an Extended
Multibody Rear Axle Model}, DOI={10.3390/vehicles3020015},
journal={Vehicles}, author={Schütte, Jan and Sextro, Walter}, year={2021}, pages={233–256}
}'
chicago: Schütte, Jan, and Walter Sextro. “Tire Wear Reduction Based on an Extended
Multibody Rear Axle Model.” Vehicles, 2021, 233–56. https://doi.org/10.3390/vehicles3020015.
ieee: 'J. Schütte and W. Sextro, “Tire Wear Reduction Based on an Extended Multibody
Rear Axle Model,” Vehicles, pp. 233–256, 2021, doi: 10.3390/vehicles3020015.'
mla: Schütte, Jan, and Walter Sextro. “Tire Wear Reduction Based on an Extended
Multibody Rear Axle Model.” Vehicles, 2021, pp. 233–56, doi:10.3390/vehicles3020015.
short: J. Schütte, W. Sextro, Vehicles (2021) 233–256.
date_created: 2021-11-17T09:47:49Z
date_updated: 2024-05-27T07:49:17Z
department:
- _id: '151'
doi: 10.3390/vehicles3020015
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2624-8921/3/2/15
oa: '1'
page: 233-256
publication: Vehicles
publication_identifier:
issn:
- 2624-8921
publication_status: published
quality_controlled: '1'
status: public
title: Tire Wear Reduction Based on an Extended Multibody Rear Axle Model
type: journal_article
user_id: '22109'
year: '2021'
...
---
_id: '45844'
abstract:
- lang: eng
text: "Abstract\r\n Abductive reasoning
is a non-monotonic formalism stemming from the work of Peirce. It describes the
process of deriving the most plausible explanations of known facts. Considering
the positive version, asking for sets of variables as explanations, we study,
besides the problem of wether there exists a set of explanations, two explanation
size limited variants of this reasoning problem (less than or equal to, and equal
to a given size bound). In this paper, we present a thorough two-dimensional classification
of these problems: the first dimension is regarding the parameterized complexity
under a wealth of different parameterizations, and the second dimension spans
through all possible Boolean fragments of these problems in Schaefer’s constraint
satisfaction framework with co-clones (T. J. Schaefer. The complexity of satisfiability
problems. In Proceedings of the 10th Annual ACM Symposium on Theory of Computing,
May 1–3, 1978, San Diego, California, USA, R.J. Lipton, W.A. Burkhard, W.J. Savitch,
E.P. Friedman, A.V. Aho eds, pp. 216–226. ACM, 1978). Thereby, we almost complete
the parameterized complexity classification program initiated by Fellows et al.
(The parameterized complexity of abduction. In Proceedings of the Twenty-Sixth
AAAI Conference on Articial Intelligence, July 22–26, 2012, Toronto, Ontario,
Canada, J. Homann, B. Selman eds. AAAI Press, 2012), partially building on the
results by Nordh and Zanuttini (What makes propositional abduction tractable.
Artificial Intelligence, 172, 1245–1284, 2008). In this process, we outline a
fine-grained analysis of the inherent parameterized intractability of these problems
and pinpoint their FPT parts. As the standard algebraic approach is not applicable
to our problems, we develop an alternative method that makes the algebraic tools
partially available again."
author:
- first_name: Yasir
full_name: Mahmood, Yasir
last_name: Mahmood
- first_name: Arne
full_name: Meier, Arne
last_name: Meier
- first_name: Johannes
full_name: Schmidt, Johannes
last_name: Schmidt
citation:
ama: Mahmood Y, Meier A, Schmidt J. Parameterized complexity of abduction in Schaefer’s
framework. Journal of Logic and Computation. 2021;31(1):266-296. doi:10.1093/logcom/exaa079
apa: Mahmood, Y., Meier, A., & Schmidt, J. (2021). Parameterized complexity
of abduction in Schaefer’s framework. Journal of Logic and Computation,
31(1), 266–296. https://doi.org/10.1093/logcom/exaa079
bibtex: '@article{Mahmood_Meier_Schmidt_2021, title={Parameterized complexity of
abduction in Schaefer’s framework}, volume={31}, DOI={10.1093/logcom/exaa079},
number={1}, journal={Journal of Logic and Computation}, publisher={Oxford University
Press (OUP)}, author={Mahmood, Yasir and Meier, Arne and Schmidt, Johannes}, year={2021},
pages={266–296} }'
chicago: 'Mahmood, Yasir, Arne Meier, and Johannes Schmidt. “Parameterized Complexity
of Abduction in Schaefer’s Framework.” Journal of Logic and Computation
31, no. 1 (2021): 266–96. https://doi.org/10.1093/logcom/exaa079.'
ieee: 'Y. Mahmood, A. Meier, and J. Schmidt, “Parameterized complexity of abduction
in Schaefer’s framework,” Journal of Logic and Computation, vol. 31, no.
1, pp. 266–296, 2021, doi: 10.1093/logcom/exaa079.'
mla: Mahmood, Yasir, et al. “Parameterized Complexity of Abduction in Schaefer’s
Framework.” Journal of Logic and Computation, vol. 31, no. 1, Oxford University
Press (OUP), 2021, pp. 266–96, doi:10.1093/logcom/exaa079.
short: Y. Mahmood, A. Meier, J. Schmidt, Journal of Logic and Computation 31 (2021)
266–296.
date_created: 2023-07-03T11:35:23Z
date_updated: 2024-06-04T16:03:14Z
department:
- _id: '574'
doi: 10.1093/logcom/exaa079
extern: '1'
intvolume: ' 31'
issue: '1'
keyword:
- Logic
- Hardware and Architecture
- Arts and Humanities (miscellaneous)
- Software
- Theoretical Computer Science
language:
- iso: eng
page: 266-296
publication: Journal of Logic and Computation
publication_identifier:
issn:
- 0955-792X
- 1465-363X
publication_status: published
publisher: Oxford University Press (OUP)
status: public
title: Parameterized complexity of abduction in Schaefer’s framework
type: journal_article
user_id: '99353'
volume: 31
year: '2021'
...
---
_id: '46315'
abstract:
- lang: eng
text: We propose a novel method for automated algorithm selection in the domain
of single-objective continuous black-box optimization. In contrast to existing
methods, we use convolutional neural networks as the selection apparatus which
bases its decision on a so-called ‘fitness map’. This fitness map is a 2D representation
of a two dimensional search space where different gray scales indicate the quality
of found solutions in certain areas. Our devised approach uses a modular CMA-ES
framework which offers the option to create the conventional CMA-ES, CMA-ES with
the alternate step-size adaptation and many other variants proposed over the years.
In total, 4 608 different configurations are possible where most configurations
are of complementary nature. In this proof-of-concept work, we consider a subset
of 32 possible configurations. The developed method is evaluated against an excerpt
of BBOB functions and its performance is compared against baselines that are commonly
used in automated algorithm selection - the best standalone algorithm (configuration)
and the best obtainable sequence of configurations. While the results indicate
that the use of the fitness map is not superior on every benchmark problem, it
indubitably shows its merit on more hard-to-solve problems. This offers a promising
perspective for generalizing to other types of optimization problems and problem
domains.
author:
- first_name: Raphael Patrick
full_name: Prager, Raphael Patrick
last_name: Prager
- first_name: Moritz
full_name: Seiler, Moritz
id: '105520'
last_name: Seiler
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
- first_name: Pascal
full_name: Kerschke, Pascal
last_name: Kerschke
citation:
ama: 'Prager RP, Seiler M, Trautmann H, Kerschke P. Towards Feature-Free Automated
Algorithm Selection for Single-Objective Continuous Black-Box Optimization. In:
2021 IEEE Symposium Series on Computational Intelligence (SSCI). ; 2021:1-8.
doi:10.1109/SSCI50451.2021.9660174'
apa: Prager, R. P., Seiler, M., Trautmann, H., & Kerschke, P. (2021). Towards
Feature-Free Automated Algorithm Selection for Single-Objective Continuous Black-Box
Optimization. 2021 IEEE Symposium Series on Computational Intelligence (SSCI),
1–8. https://doi.org/10.1109/SSCI50451.2021.9660174
bibtex: '@inproceedings{Prager_Seiler_Trautmann_Kerschke_2021, title={Towards Feature-Free
Automated Algorithm Selection for Single-Objective Continuous Black-Box Optimization},
DOI={10.1109/SSCI50451.2021.9660174},
booktitle={2021 IEEE Symposium Series on Computational Intelligence (SSCI)}, author={Prager,
Raphael Patrick and Seiler, Moritz and Trautmann, Heike and Kerschke, Pascal},
year={2021}, pages={1–8} }'
chicago: Prager, Raphael Patrick, Moritz Seiler, Heike Trautmann, and Pascal Kerschke.
“Towards Feature-Free Automated Algorithm Selection for Single-Objective Continuous
Black-Box Optimization.” In 2021 IEEE Symposium Series on Computational Intelligence
(SSCI), 1–8, 2021. https://doi.org/10.1109/SSCI50451.2021.9660174.
ieee: 'R. P. Prager, M. Seiler, H. Trautmann, and P. Kerschke, “Towards Feature-Free
Automated Algorithm Selection for Single-Objective Continuous Black-Box Optimization,”
in 2021 IEEE Symposium Series on Computational Intelligence (SSCI), 2021,
pp. 1–8, doi: 10.1109/SSCI50451.2021.9660174.'
mla: Prager, Raphael Patrick, et al. “Towards Feature-Free Automated Algorithm Selection
for Single-Objective Continuous Black-Box Optimization.” 2021 IEEE Symposium
Series on Computational Intelligence (SSCI), 2021, pp. 1–8, doi:10.1109/SSCI50451.2021.9660174.
short: 'R.P. Prager, M. Seiler, H. Trautmann, P. Kerschke, in: 2021 IEEE Symposium
Series on Computational Intelligence (SSCI), 2021, pp. 1–8.'
date_created: 2023-08-04T07:25:08Z
date_updated: 2024-06-07T07:12:28Z
department:
- _id: '34'
- _id: '819'
doi: 10.1109/SSCI50451.2021.9660174
language:
- iso: eng
page: 1-8
publication: 2021 IEEE Symposium Series on Computational Intelligence (SSCI)
status: public
title: Towards Feature-Free Automated Algorithm Selection for Single-Objective Continuous
Black-Box Optimization
type: conference
user_id: '15504'
year: '2021'
...
---
_id: '46313'
abstract:
- lang: eng
text: 'Classic automated algorithm selection (AS) for (combinatorial) optimization
problems heavily relies on so-called instance features, i.e., numerical characteristics
of the problem at hand ideally extracted with computationally low-demanding routines.
For the traveling salesperson problem (TSP) a plethora of features have been suggested.
Most of these features are, if at all, only normalized imprecisely raising the
issue of feature values being strongly affected by the instance size. Such artifacts
may have detrimental effects on algorithm selection models. We propose a normalization
for two feature groups which stood out in multiple AS studies on the TSP: (a)
features based on a minimum spanning tree (MST) and (b) a k-nearest neighbor graph
(NNG) transformation of the input instance. To this end we theoretically derive
minimum and maximum values for properties of MSTs and k-NNGs of Euclidean graphs.
We analyze the differences in feature space between normalized versions of these
features and their unnormalized counterparts. Our empirical investigations on
various TSP benchmark sets point out that the feature scaling succeeds in eliminating
the effect of the instance size. Eventually, a proof-of-concept AS-study shows
promising results: models trained with normalized features tend to outperform
those trained with the respective vanilla features.'
author:
- first_name: Jonathan
full_name: Heins, Jonathan
last_name: Heins
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Janina
full_name: Pohl, Janina
last_name: Pohl
- first_name: Moritz
full_name: Seiler, Moritz
id: '105520'
last_name: Seiler
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
- first_name: Pascal
full_name: Kerschke, Pascal
last_name: Kerschke
citation:
ama: 'Heins J, Bossek J, Pohl J, Seiler M, Trautmann H, Kerschke P. On the Potential
of Normalized TSP Features for Automated Algorithm Selection. In: Computing Machinery
Association for, ed. Proceedings of the 16$^th$ ACM/SIGEVO Conference on Foundations
of Genetic Algorithms (FOGA XVI). Association for Computing Machinery; 2021:1–15.
doi:10.1145/3450218.3477308'
apa: Heins, J., Bossek, J., Pohl, J., Seiler, M., Trautmann, H., & Kerschke,
P. (2021). On the Potential of Normalized TSP Features for Automated Algorithm
Selection. In for Computing Machinery Association (Ed.), Proceedings of the
16$^th$ ACM/SIGEVO Conference on Foundations of genetic Algorithms (FOGA XVI)
(pp. 1–15). Association for Computing Machinery. https://doi.org/10.1145/3450218.3477308
bibtex: '@inproceedings{Heins_Bossek_Pohl_Seiler_Trautmann_Kerschke_2021, place={Dornbirn,
Austria}, title={On the Potential of Normalized TSP Features for Automated Algorithm
Selection}, DOI={10.1145/3450218.3477308},
booktitle={Proceedings of the 16$^th$ ACM/SIGEVO Conference on Foundations of
genetic Algorithms (FOGA XVI)}, publisher={Association for Computing Machinery},
author={Heins, Jonathan and Bossek, Jakob and Pohl, Janina and Seiler, Moritz
and Trautmann, Heike and Kerschke, Pascal}, editor={Computing Machinery Association,
for}, year={2021}, pages={1–15} }'
chicago: 'Heins, Jonathan, Jakob Bossek, Janina Pohl, Moritz Seiler, Heike Trautmann,
and Pascal Kerschke. “On the Potential of Normalized TSP Features for Automated
Algorithm Selection.” In Proceedings of the 16$^th$ ACM/SIGEVO Conference on
Foundations of Genetic Algorithms (FOGA XVI), edited by for Computing Machinery
Association, 1–15. Dornbirn, Austria: Association for Computing Machinery, 2021.
https://doi.org/10.1145/3450218.3477308.'
ieee: 'J. Heins, J. Bossek, J. Pohl, M. Seiler, H. Trautmann, and P. Kerschke, “On
the Potential of Normalized TSP Features for Automated Algorithm Selection,” in
Proceedings of the 16$^th$ ACM/SIGEVO Conference on Foundations of genetic
Algorithms (FOGA XVI), 2021, pp. 1–15, doi: 10.1145/3450218.3477308.'
mla: Heins, Jonathan, et al. “On the Potential of Normalized TSP Features for Automated
Algorithm Selection.” Proceedings of the 16$^th$ ACM/SIGEVO Conference on Foundations
of Genetic Algorithms (FOGA XVI), edited by for Computing Machinery Association,
Association for Computing Machinery, 2021, pp. 1–15, doi:10.1145/3450218.3477308.
short: 'J. Heins, J. Bossek, J. Pohl, M. Seiler, H. Trautmann, P. Kerschke, in: for
Computing Machinery Association (Ed.), Proceedings of the 16$^th$ ACM/SIGEVO Conference
on Foundations of Genetic Algorithms (FOGA XVI), Association for Computing Machinery,
Dornbirn, Austria, 2021, pp. 1–15.'
date_created: 2023-08-04T07:23:57Z
date_updated: 2024-06-10T11:57:04Z
department:
- _id: '34'
- _id: '819'
doi: 10.1145/3450218.3477308
editor:
- first_name: for
full_name: Computing Machinery Association, for
last_name: Computing Machinery Association
language:
- iso: eng
page: 1–15
place: Dornbirn, Austria
publication: Proceedings of the 16$^th$ ACM/SIGEVO Conference on Foundations of genetic
Algorithms (FOGA XVI)
publisher: Association for Computing Machinery
status: public
title: On the Potential of Normalized TSP Features for Automated Algorithm Selection
type: conference
user_id: '15504'
year: '2021'
...
---
_id: '36845'
author:
- first_name: Anne
full_name: Kruse, Anne
id: '55833'
last_name: Kruse
- first_name: Manuel
full_name: Ott, Manuel
id: '44204'
last_name: Ott
- first_name: Lena
full_name: Risse, Lena
last_name: Risse
- first_name: Rainer
full_name: Koch, Rainer
last_name: Koch
citation:
ama: Kruse A, Ott M, Risse L, Koch R. 3D-Druck - Eine Technologie als Schlüssel
zur Steigerung der Teilhabe. Published online 2021. doi:10.48447/Add-2021-016
apa: Kruse, A., Ott, M., Risse, L., & Koch, R. (2021). 3D-Druck - Eine Technologie
als Schlüssel zur Steigerung der Teilhabe. 6. Tagung des DVM-Arbeitskreises
Additiv gefertigte Bauteile und Strukturen, Berlin. Deutscher Verband für Materialforschung
und -prüfung e.V. https://doi.org/10.48447/Add-2021-016
bibtex: '@article{Kruse_Ott_Risse_Koch_2021, series={Additiv gefertigte Bauteile
und Strukturen}, title={3D-Druck - Eine Technologie als Schlüssel zur Steigerung
der Teilhabe}, DOI={10.48447/Add-2021-016},
publisher={Deutscher Verband für Materialforschung und -prüfung e.V.}, author={Kruse,
Anne and Ott, Manuel and Risse, Lena and Koch, Rainer}, year={2021}, collection={Additiv
gefertigte Bauteile und Strukturen} }'
chicago: Kruse, Anne, Manuel Ott, Lena Risse, and Rainer Koch. “3D-Druck - Eine
Technologie als Schlüssel zur Steigerung der Teilhabe.” Additiv gefertigte Bauteile
und Strukturen. Deutscher Verband für Materialforschung und -prüfung e.V., 2021.
https://doi.org/10.48447/Add-2021-016.
ieee: 'A. Kruse, M. Ott, L. Risse, and R. Koch, “3D-Druck - Eine Technologie als
Schlüssel zur Steigerung der Teilhabe.” Deutscher Verband für Materialforschung
und -prüfung e.V., 2021, doi: 10.48447/Add-2021-016.'
mla: Kruse, Anne, et al. 3D-Druck - Eine Technologie als Schlüssel zur Steigerung
der Teilhabe. Deutscher Verband für Materialforschung und -prüfung e.V., 2021,
doi:10.48447/Add-2021-016.
short: A. Kruse, M. Ott, L. Risse, R. Koch, (2021).
conference:
end_date: 2021-12-04
location: Berlin
name: 6. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen
start_date: 2021-12-03
date_created: 2023-01-16T06:55:05Z
date_updated: 2023-01-16T09:00:30Z
department:
- _id: '144'
- _id: '219'
doi: 10.48447/Add-2021-016
language:
- iso: ger
publisher: Deutscher Verband für Materialforschung und -prüfung e.V.
series_title: Additiv gefertigte Bauteile und Strukturen
status: public
title: 3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe
type: conference
user_id: '55833'
year: '2021'
...