Clustering Analysis of a Dissimilarity: a Review of Algebraic and Geometric Representation

D. Fortin ()
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D. Fortin: Inria

Journal of Classification, 2020, vol. 37, issue 1, No 11, 180-202

Abstract: Abstract It is customary to split clustering analysis into an optimization level, then a (preferably) graphical representation level to take benefit of human vision for an effective understanding of (big) data structure. This article aspires to clarify relationships between clustering, both its process and its representation, and the underlying structural graph properties, both algebraic and geometric, starting from the mere knowledge of a dissimilarity matrix among items, possibly with missing entries. It is inspired by an analogous work on seriation problem, relating Robinson property in a dissimilarity with missing entries, with interval graph recognition using a sequence of 4 lexicographic breadth first searches.

Keywords: Clustering; Dissimilarity measure; Matching; Ear decomposition; LexBFS; LexDFS; Schnyder woods (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s00357-019-09315-7

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