Towards Cohesion-Fairness Harmony: Contrastive Regularization in Individual Fair Graph Clustering

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Siamak Ghodsi
  • Seyed Amjad Seyedi
  • Eirini Ntoutsi

Research Organisations

External Research Organisations

  • University of Kurdistan
  • Universität der Bundeswehr München
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Details

Original languageEnglish
Title of host publicationAdvances in Knowledge Discovery and Data Mining
Subtitle of host publication28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024
EditorsDe-Nian Yang, Xing Xie, Vincent S. Tseng, Jian Pei, Jen-Wei Huang, Jerry Chun-Wei Lin
PublisherSpringer Science and Business Media Deutschland GmbH
Pages284-296
Number of pages13
ISBN (electronic)978-981-97-2242-6
ISBN (print)9789819722419
Publication statusPublished - 25 Apr 2024
Event28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024 - Taipei, Taiwan
Duration: 7 May 202410 May 2024

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume14645 LNAI
ISSN (Print)0302-9743
ISSN (electronic)1611-3349
NameLecture Notes in Artificial Intelligence (LNAI)
PublisherSpringer Verlag
ISSN (Print)2945-9133
ISSN (electronic)2945-9141

Abstract

Conventional fair graph clustering methods face two primary challenges: i) They prioritize balanced clusters at the expense of cluster cohesion by imposing rigid constraints, ii) Existing methods of both individual and group-level fairness in graph partitioning mostly rely on eigen decompositions and thus, generally lack interpretability. To address these issues, we propose iFairNMTF, an individual Fairness Nonnegative Matrix Tri-Factorization model with contrastive fairness regularization that achieves balanced and cohesive clusters. By introducing fairness regularization, our model allows for customizable accuracy-fairness trade-offs, thereby enhancing user autonomy without compromising the interpretability provided by nonnegative matrix tri-factorization. Experimental evaluations on real and synthetic datasets demonstrate the superior flexibility of iFairNMTF in achieving fairness and clustering performance.

Keywords

    Fair Graph Clustering, Fair Unsupervised Learning, Fair-Nonnegative Matrix Factorization, Individual Fairness

ASJC Scopus subject areas

Cite this

Towards Cohesion-Fairness Harmony: Contrastive Regularization in Individual Fair Graph Clustering. / Ghodsi, Siamak; Seyedi, Seyed Amjad; Ntoutsi, Eirini.
Advances in Knowledge Discovery and Data Mining: 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024. ed. / De-Nian Yang; Xing Xie; Vincent S. Tseng; Jian Pei; Jen-Wei Huang; Jerry Chun-Wei Lin. Springer Science and Business Media Deutschland GmbH, 2024. p. 284-296 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 14645 LNAI), (Lecture Notes in Artificial Intelligence (LNAI)).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Ghodsi, S, Seyedi, SA & Ntoutsi, E 2024, Towards Cohesion-Fairness Harmony: Contrastive Regularization in Individual Fair Graph Clustering. in D-N Yang, X Xie, VS Tseng, J Pei, J-W Huang & JC-W Lin (eds), Advances in Knowledge Discovery and Data Mining: 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 14645 LNAI, Lecture Notes in Artificial Intelligence (LNAI), Springer Science and Business Media Deutschland GmbH, pp. 284-296, 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024, Taipei, Taiwan, 7 May 2024. https://doi.org/10.48550/arXiv.2402.10756, https://doi.org/10.1007/978-981-97-2242-6_23
Ghodsi, S., Seyedi, S. A., & Ntoutsi, E. (2024). Towards Cohesion-Fairness Harmony: Contrastive Regularization in Individual Fair Graph Clustering. In D.-N. Yang, X. Xie, V. S. Tseng, J. Pei, J.-W. Huang, & J. C.-W. Lin (Eds.), Advances in Knowledge Discovery and Data Mining: 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024 (pp. 284-296). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 14645 LNAI), (Lecture Notes in Artificial Intelligence (LNAI)). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.48550/arXiv.2402.10756, https://doi.org/10.1007/978-981-97-2242-6_23
Ghodsi S, Seyedi SA, Ntoutsi E. Towards Cohesion-Fairness Harmony: Contrastive Regularization in Individual Fair Graph Clustering. In Yang DN, Xie X, Tseng VS, Pei J, Huang JW, Lin JCW, editors, Advances in Knowledge Discovery and Data Mining: 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024. Springer Science and Business Media Deutschland GmbH. 2024. p. 284-296. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). (Lecture Notes in Artificial Intelligence (LNAI)). doi: 10.48550/arXiv.2402.10756, 10.1007/978-981-97-2242-6_23
Ghodsi, Siamak ; Seyedi, Seyed Amjad ; Ntoutsi, Eirini. / Towards Cohesion-Fairness Harmony : Contrastive Regularization in Individual Fair Graph Clustering. Advances in Knowledge Discovery and Data Mining: 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2024. editor / De-Nian Yang ; Xing Xie ; Vincent S. Tseng ; Jian Pei ; Jen-Wei Huang ; Jerry Chun-Wei Lin. Springer Science and Business Media Deutschland GmbH, 2024. pp. 284-296 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). (Lecture Notes in Artificial Intelligence (LNAI)).
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abstract = "Conventional fair graph clustering methods face two primary challenges: i) They prioritize balanced clusters at the expense of cluster cohesion by imposing rigid constraints, ii) Existing methods of both individual and group-level fairness in graph partitioning mostly rely on eigen decompositions and thus, generally lack interpretability. To address these issues, we propose iFairNMTF, an individual Fairness Nonnegative Matrix Tri-Factorization model with contrastive fairness regularization that achieves balanced and cohesive clusters. By introducing fairness regularization, our model allows for customizable accuracy-fairness trade-offs, thereby enhancing user autonomy without compromising the interpretability provided by nonnegative matrix tri-factorization. Experimental evaluations on real and synthetic datasets demonstrate the superior flexibility of iFairNMTF in achieving fairness and clustering performance.",
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