Title

Statistical Comparative Analysis and Evaluation of Validation Indices for Clustering Optimization

Abstract

Clustering is a relevant exploratory tool for a broad range of machine learning applications as it aids identification of meaningful subgroups. For a given clustering algorithm, multiple partitions can be obtained on the same data set by varying algorithmic parameters. Internal validation indices provide a means to objectively evaluate how well groupings obtained from a clustering configuration partitions the data, since there is no prior labeled data. This work presents a rigorous statistical evaluation framework that analyzes performance of internal validation indices based on correlation with external indices. A synthetic data generator that captures a wide range of complexity is proposed. Evaluation is conducted on a varied set of synthetic data types and real data sets to investigate performance of the indices.

Department(s)

Engineering Program

Document Type

Conference Proceeding

DOI

https://doi.org/10.1109/SSCI47803.2020.9308412

Keywords

clustering, statistical analysis, validation indices

Publication Date

12-1-2020

Journal Title

2020 IEEE Symposium Series on Computational Intelligence, SSCI 2020

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