Handling Very Large Cooccurrence Matrices in Fuzzy Co-clustering by Sampling Approaches

Honda, Katsuhiro; Notsu, Akira; Oh, Chi-Hyon

doi:10.1007/978-3-319-05515-2_3

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2016

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“…However, a biomedical article may actually involve multiple medical specialties and subjects, so it could belong to multiple clusters [7]. This suggests the appearance of soft clustering algorithms.…”

Section: Introductionmentioning

confidence: 99%

Information bottleneck based incremental fuzzy clustering for large biomedical data

Liu

Wei

2016

Journal of Biomedical Informatics

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Incremental fuzzy clustering combines advantages of fuzzy clustering and incremental clustering, and therefore is important in classifying large biomedical literature. Conventional algorithms, suffering from data sparsity and high-dimensionality, often fail to produce reasonable results and may even assign all the objects to a single cluster. In this paper, we propose two incremental algorithms based on information bottleneck, Single-Pass fuzzy c-means (spFCM-IB) and Online fuzzy c-means (oFCM-IB). These two algorithms modify conventional algorithms by considering different weights for each centroid and object and scoring mutual information loss to measure the distance between centroids and objects. spFCM-IB and oFCM-IB are used to group a collection of biomedical text abstracts from Medline database. Experimental results show that clustering performances of our approaches are better than such prominent counterparts as spFCM, spHFCM, oFCM and oHFCM, in terms of accuracy.

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Section: Introductionmentioning

confidence: 99%