---
_id: '48872'
abstract:
- lang: eng
  text: Quality diversity (QD) is a branch of evolutionary computation that gained
    increasing interest in recent years. The Map-Elites QD approach defines a feature
    space, i.e., a partition of the search space, and stores the best solution for
    each cell of this space. We study a simple QD algorithm in the context of pseudo-Boolean
    optimisation on the "number of ones" feature space, where the ith cell stores
    the best solution amongst those with a number of ones in [(i - 1)k, ik - 1]. Here
    k is a granularity parameter 1 {$\leq$} k {$\leq$} n+1. We give a tight bound
    on the expected time until all cells are covered for arbitrary fitness functions
    and for all k and analyse the expected optimisation time of QD on OneMax and other
    problems whose structure aligns favourably with the feature space. On combinatorial
    problems we show that QD finds a (1 - 1/e)-approximation when maximising any monotone
    sub-modular function with a single uniform cardinality constraint efficiently.
    Defining the feature space as the number of connected components of a connected
    graph, we show that QD finds a minimum spanning tree in expected polynomial time.
author:
- first_name: Jakob
  full_name: Bossek, Jakob
  id: '102979'
  last_name: Bossek
  orcid: 0000-0002-4121-4668
- first_name: Dirk
  full_name: Sudholt, Dirk
  last_name: Sudholt
citation:
  ama: 'Bossek J, Sudholt D. Runtime Analysis of Quality Diversity Algorithms. In:
    <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>. GECCO’23.
    Association for Computing Machinery; 2023:1546–1554. doi:<a href="https://doi.org/10.1145/3583131.3590383">10.1145/3583131.3590383</a>'
  apa: Bossek, J., &#38; Sudholt, D. (2023). Runtime Analysis of Quality Diversity
    Algorithms. <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>,
    1546–1554. <a href="https://doi.org/10.1145/3583131.3590383">https://doi.org/10.1145/3583131.3590383</a>
  bibtex: '@inproceedings{Bossek_Sudholt_2023, place={New York, NY, USA}, series={GECCO’23},
    title={Runtime Analysis of Quality Diversity Algorithms}, DOI={<a href="https://doi.org/10.1145/3583131.3590383">10.1145/3583131.3590383</a>},
    booktitle={Proceedings of the Genetic and Evolutionary Computation Conference},
    publisher={Association for Computing Machinery}, author={Bossek, Jakob and Sudholt,
    Dirk}, year={2023}, pages={1546–1554}, collection={GECCO’23} }'
  chicago: 'Bossek, Jakob, and Dirk Sudholt. “Runtime Analysis of Quality Diversity
    Algorithms.” In <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>,
    1546–1554. GECCO’23. New York, NY, USA: Association for Computing Machinery, 2023.
    <a href="https://doi.org/10.1145/3583131.3590383">https://doi.org/10.1145/3583131.3590383</a>.'
  ieee: 'J. Bossek and D. Sudholt, “Runtime Analysis of Quality Diversity Algorithms,”
    in <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>,
    2023, pp. 1546–1554, doi: <a href="https://doi.org/10.1145/3583131.3590383">10.1145/3583131.3590383</a>.'
  mla: Bossek, Jakob, and Dirk Sudholt. “Runtime Analysis of Quality Diversity Algorithms.”
    <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>, Association
    for Computing Machinery, 2023, pp. 1546–1554, doi:<a href="https://doi.org/10.1145/3583131.3590383">10.1145/3583131.3590383</a>.
  short: 'J. Bossek, D. Sudholt, in: Proceedings of the Genetic and Evolutionary Computation
    Conference, Association for Computing Machinery, New York, NY, USA, 2023, pp.
    1546–1554.'
date_created: 2023-11-14T15:58:57Z
date_updated: 2023-12-13T10:48:26Z
department:
- _id: '819'
doi: 10.1145/3583131.3590383
extern: '1'
keyword:
- quality diversity
- runtime analysis
language:
- iso: eng
page: 1546–1554
place: New York, NY, USA
publication: Proceedings of the Genetic and Evolutionary Computation Conference
publication_identifier:
  isbn:
  - '9798400701191'
publisher: Association for Computing Machinery
series_title: GECCO’23
status: public
title: Runtime Analysis of Quality Diversity Algorithms
type: conference
user_id: '102979'
year: '2023'
...
---
_id: '48861'
abstract:
- lang: eng
  text: Generating instances of different properties is key to algorithm selection
    methods that differentiate between the performance of different solvers for a
    given combinatorial optimization problem. A wide range of methods using evolutionary
    computation techniques has been introduced in recent years. With this paper, we
    contribute to this area of research by providing a new approach based on quality
    diversity (QD) that is able to explore the whole feature space. QD algorithms
    allow to create solutions of high quality within a given feature space by splitting
    it up into boxes and improving solution quality within each box. We use our QD
    approach for the generation of TSP instances to visualize and analyze the variety
    of instances differentiating various TSP solvers and compare it to instances generated
    by established approaches from the literature.
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
citation:
  ama: 'Bossek J, Neumann F. Exploring the Feature Space of TSP Instances Using Quality
    Diversity. In: <i>Proceedings of the Genetic and Evolutionary Computation Conference</i>.
    GECCO ’22. Association for Computing Machinery; 2022:186–194. doi:<a href="https://doi.org/10.1145/3512290.3528851">10.1145/3512290.3528851</a>'
  apa: Bossek, J., &#38; Neumann, F. (2022). Exploring the Feature Space of TSP Instances
    Using Quality Diversity. <i>Proceedings of the Genetic and Evolutionary Computation
    Conference</i>, 186–194. <a href="https://doi.org/10.1145/3512290.3528851">https://doi.org/10.1145/3512290.3528851</a>
  bibtex: '@inproceedings{Bossek_Neumann_2022, place={New York, NY, USA}, series={GECCO
    ’22}, title={Exploring the Feature Space of TSP Instances Using Quality Diversity},
    DOI={<a href="https://doi.org/10.1145/3512290.3528851">10.1145/3512290.3528851</a>},
    booktitle={Proceedings of the Genetic and Evolutionary Computation Conference},
    publisher={Association for Computing Machinery}, author={Bossek, Jakob and Neumann,
    Frank}, year={2022}, pages={186–194}, collection={GECCO ’22} }'
  chicago: 'Bossek, Jakob, and Frank Neumann. “Exploring the Feature Space of TSP
    Instances Using Quality Diversity.” In <i>Proceedings of the Genetic and Evolutionary
    Computation Conference</i>, 186–194. GECCO ’22. New York, NY, USA: Association
    for Computing Machinery, 2022. <a href="https://doi.org/10.1145/3512290.3528851">https://doi.org/10.1145/3512290.3528851</a>.'
  ieee: 'J. Bossek and F. Neumann, “Exploring the Feature Space of TSP Instances Using
    Quality Diversity,” in <i>Proceedings of the Genetic and Evolutionary Computation
    Conference</i>, 2022, pp. 186–194, doi: <a href="https://doi.org/10.1145/3512290.3528851">10.1145/3512290.3528851</a>.'
  mla: Bossek, Jakob, and Frank Neumann. “Exploring the Feature Space of TSP Instances
    Using Quality Diversity.” <i>Proceedings of the Genetic and Evolutionary Computation
    Conference</i>, Association for Computing Machinery, 2022, pp. 186–194, doi:<a
    href="https://doi.org/10.1145/3512290.3528851">10.1145/3512290.3528851</a>.
  short: 'J. Bossek, F. Neumann, in: Proceedings of the Genetic and Evolutionary Computation
    Conference, Association for Computing Machinery, New York, NY, USA, 2022, pp.
    186–194.'
date_created: 2023-11-14T15:58:55Z
date_updated: 2023-12-13T10:45:56Z
department:
- _id: '819'
doi: 10.1145/3512290.3528851
extern: '1'
keyword:
- instance features
- instance generation
- quality diversity
- TSP
language:
- iso: eng
page: 186–194
place: New York, NY, USA
publication: Proceedings of the Genetic and Evolutionary Computation Conference
publication_identifier:
  isbn:
  - 978-1-4503-9237-2
publication_status: published
publisher: Association for Computing Machinery
series_title: GECCO ’22
status: public
title: Exploring the Feature Space of TSP Instances Using Quality Diversity
type: conference
user_id: '102979'
year: '2022'
...
---
_id: '48894'
abstract:
- lang: eng
  text: Recently different evolutionary computation approaches have been developed
    that generate sets of high quality diverse solutions for a given optimisation
    problem. Many studies have considered diversity 1) as a mean to explore niches
    in behavioural space (quality diversity) or 2) to increase the structural differences
    of solutions (evolutionary diversity optimisation). In this study, we introduce
    a co-evolutionary algorithm to simultaneously explore the two spaces for the multi-component
    traveling thief problem. The results show the capability of the co-evolutionary
    algorithm to achieve significantly higher diversity compared to the baseline evolutionary
    diversity algorithms from the literature.
author:
- first_name: Adel
  full_name: Nikfarjam, Adel
  last_name: Nikfarjam
- first_name: Aneta
  full_name: Neumann, Aneta
  last_name: Neumann
- 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
citation:
  ama: 'Nikfarjam A, Neumann A, Bossek J, Neumann F. Co-Evolutionary Diversity Optimisation
    for the Traveling Thief Problem. In: Rudolph G, Kononova AV, Aguirre H, Kerschke
    P, Ochoa G, Tu\v sar T, eds. <i>Parallel Problem Solving from Nature (PPSN XVII)</i>.
    Lecture Notes in Computer Science. Springer International Publishing; 2022:237–249.
    doi:<a href="https://doi.org/10.1007/978-3-031-14714-2_17">10.1007/978-3-031-14714-2_17</a>'
  apa: Nikfarjam, A., Neumann, A., Bossek, J., &#38; Neumann, F. (2022). Co-Evolutionary
    Diversity Optimisation for the Traveling Thief Problem. In G. Rudolph, A. V. Kononova,
    H. Aguirre, P. Kerschke, G. Ochoa, &#38; T. Tu\v sar (Eds.), <i>Parallel Problem
    Solving from Nature (PPSN XVII)</i> (pp. 237–249). Springer International Publishing.
    <a href="https://doi.org/10.1007/978-3-031-14714-2_17">https://doi.org/10.1007/978-3-031-14714-2_17</a>
  bibtex: '@inproceedings{Nikfarjam_Neumann_Bossek_Neumann_2022, place={Cham}, series={Lecture
    Notes in Computer Science}, title={Co-Evolutionary Diversity Optimisation for
    the Traveling Thief Problem}, DOI={<a href="https://doi.org/10.1007/978-3-031-14714-2_17">10.1007/978-3-031-14714-2_17</a>},
    booktitle={Parallel Problem Solving from Nature (PPSN XVII)}, publisher={Springer
    International Publishing}, author={Nikfarjam, Adel and Neumann, Aneta and Bossek,
    Jakob and Neumann, Frank}, editor={Rudolph, Günter and Kononova, Anna V. and Aguirre,
    Hernán and Kerschke, Pascal and Ochoa, Gabriela and Tu\v sar, Tea}, year={2022},
    pages={237–249}, collection={Lecture Notes in Computer Science} }'
  chicago: 'Nikfarjam, Adel, Aneta Neumann, Jakob Bossek, and Frank Neumann. “Co-Evolutionary
    Diversity Optimisation for the Traveling Thief Problem.” In <i>Parallel Problem
    Solving from Nature (PPSN XVII)</i>, edited by Günter Rudolph, Anna V. Kononova,
    Hernán Aguirre, Pascal Kerschke, Gabriela Ochoa, and Tea Tu\v sar, 237–249. Lecture
    Notes in Computer Science. Cham: Springer International Publishing, 2022. <a href="https://doi.org/10.1007/978-3-031-14714-2_17">https://doi.org/10.1007/978-3-031-14714-2_17</a>.'
  ieee: 'A. Nikfarjam, A. Neumann, J. Bossek, and F. Neumann, “Co-Evolutionary Diversity
    Optimisation for the Traveling Thief Problem,” in <i>Parallel Problem Solving
    from Nature (PPSN XVII)</i>, 2022, pp. 237–249, doi: <a href="https://doi.org/10.1007/978-3-031-14714-2_17">10.1007/978-3-031-14714-2_17</a>.'
  mla: Nikfarjam, Adel, et al. “Co-Evolutionary Diversity Optimisation for the Traveling
    Thief Problem.” <i>Parallel Problem Solving from Nature (PPSN XVII)</i>, edited
    by Günter Rudolph et al., Springer International Publishing, 2022, pp. 237–249,
    doi:<a href="https://doi.org/10.1007/978-3-031-14714-2_17">10.1007/978-3-031-14714-2_17</a>.
  short: 'A. Nikfarjam, A. Neumann, J. Bossek, F. Neumann, in: G. Rudolph, A.V. Kononova,
    H. Aguirre, P. Kerschke, G. Ochoa, T. Tu\v sar (Eds.), Parallel Problem Solving
    from Nature (PPSN XVII), Springer International Publishing, Cham, 2022, pp. 237–249.'
date_created: 2023-11-14T15:59:00Z
date_updated: 2023-12-13T10:49:51Z
department:
- _id: '819'
doi: 10.1007/978-3-031-14714-2_17
editor:
- first_name: Günter
  full_name: Rudolph, Günter
  last_name: Rudolph
- first_name: Anna V.
  full_name: Kononova, Anna V.
  last_name: Kononova
- first_name: Hernán
  full_name: Aguirre, Hernán
  last_name: Aguirre
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Gabriela
  full_name: Ochoa, Gabriela
  last_name: Ochoa
- first_name: Tea
  full_name: Tu\v sar, Tea
  last_name: Tu\v sar
extern: '1'
keyword:
- Co-evolutionary algorithms
- Evolutionary diversity optimisation
- Quality diversity
- Traveling thief problem
language:
- iso: eng
page: 237–249
place: Cham
publication: Parallel Problem Solving from Nature (PPSN XVII)
publication_identifier:
  isbn:
  - 978-3-031-14714-2
publication_status: published
publisher: Springer International Publishing
series_title: Lecture Notes in Computer Science
status: public
title: Co-Evolutionary Diversity Optimisation for the Traveling Thief Problem
type: conference
user_id: '102979'
year: '2022'
...
