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Pascal Weber

2 accepted papers

2026

Internal Evaluation of Density-Based Clusterings with Noise

ICLR 2026poster

Evaluating the quality of a clustering result without access to ground truth labels is fundamental for research in data mining. However, most cluster validation indices (CVIs) do not consider the noise assignments by density-based clustering methods like DBSCAN or HDBSCAN, even though the ability to…

Cited by 0SourceScholar
2025

Ultrametric Cluster Hierarchies: I Want ‘em All!

NeurIPS 2025poster

Hierarchical clustering is a powerful tool for exploratory data analysis, organizing data into a tree of clusterings from which a partition can be chosen. This paper generalizes these ideas by proving that, for any reasonable hierarchy, one can optimally solve any center-based clustering objective o…

Cited by 0SourceScholar