NDLI: An EM Clustering Algorithm which Produces a Dual Representation

Content Provider	IEEE Xplore Digital Library
Author	Sun Kim Wilbur, W.J.
Copyright Year	2011
Abstract	Clustering text documents is an important step in mining useful information on the Web or other text-based resources. The common task in text clustering is to handle text in a multi-dimensional space, and to partition documents into groups, where each group contains documents that are similar to each other. However, this strategy lacks a comprehensive view for humans since it cannot explain the subject of each cluster. Utilizing semantic information such as an ontology can solve this problem, but it needs a well-defined database or pre-labeled gold standard set. In this paper, we present a theme-based clustering algorithm for text documents. Given text, subject terms are extracted and used for clustering documents in a probabilistic framework. An EM approach is used to ensure documents are assigned to correct themes, hence it converges to an optimal solution. The proposed method is distinctive because its results are sufficiently explanatory for human understanding as well as efficient for usual clustering performance. The experimental results show that the proposed method provides competitive performance compared to other state-of-the-art approaches. In addition, the extracted themes represent well the topics of clusters on the MEDLINE dataset.
Starting Page	90
Ending Page	95
File Size	217667
Page Count	6
File Format	PDF
ISBN	9781457721342
DOI	10.1109/ICMLA.2011.29
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Parkinson's disease Clustering algorithms Humans Probabilistic logic Vectors
Content Type	Text
Resource Type	Article

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