Disjunctive and Conjunctive Normal Form Explanations of Clusters Using Auxiliary Information
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915265868988416 |
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| author | Downey, Robert F. Ravi, S. S. |
| author_facet | Downey, Robert F. Ravi, S. S. |
| contents | We consider generating post-hoc explanations of clusters generated from various datasets using auxiliary information which was not used by clustering algorithms. Following terminology used in previous work, we refer to the auxiliary information as tags. Our focus is on two forms of explanations, namely disjunctive form (where the explanation for a cluster consists of a set of tags) and a two-clause conjunctive normal form (CNF) explanation (where the explanation consists of two sets of tags, combined through the AND operator). We use integer linear programming (ILP) as well as heuristic methods to generate these explanations. We experiment with a variety of datasets and discuss the insights obtained from our explanations. We also present experimental results regarding the scalability of our explanation methods. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_20846 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Disjunctive and Conjunctive Normal Form Explanations of Clusters Using Auxiliary Information Downey, Robert F. Ravi, S. S. Artificial Intelligence I.2 We consider generating post-hoc explanations of clusters generated from various datasets using auxiliary information which was not used by clustering algorithms. Following terminology used in previous work, we refer to the auxiliary information as tags. Our focus is on two forms of explanations, namely disjunctive form (where the explanation for a cluster consists of a set of tags) and a two-clause conjunctive normal form (CNF) explanation (where the explanation consists of two sets of tags, combined through the AND operator). We use integer linear programming (ILP) as well as heuristic methods to generate these explanations. We experiment with a variety of datasets and discuss the insights obtained from our explanations. We also present experimental results regarding the scalability of our explanation methods. |
| title | Disjunctive and Conjunctive Normal Form Explanations of Clusters Using Auxiliary Information |
| topic | Artificial Intelligence I.2 |
| url | https://arxiv.org/abs/2504.20846 |