Abstract
To support very high dimensionality, model-based clustering is an intuitive choice for document clustering. However, the current model-based algorithms are prone to generating the skewed clusters, which influence the quality of clustering seriously. In this paper, the reasons of skew are examined and determined as the inappropriate initial model, the unfitness of cluster model and the interaction between the decentralization of estimation samples and the over-generalized cluster model. This paper proposes a skew prevention document-clustering algorithm (MMPClust), which has two features: (1) a content-based cluster model is used to model the cluster better; (2) at the re-estimation step, a part of documents most relevant to its corresponding class are selected automatically for each cluster as the estimation samples to break this interaction. MMPClust has less restrictions and more applicability in document clustering than the previous methods.
Supported by the National Natural Science Foundation of China under Grant No.60173051 and the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institution of the Ministry of Education, China
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Li, X., Yu, G., Wang, D. (2005). MMPClust: A Skew Prevention Algorithm for Model-Based Document Clustering. In: Zhou, L., Ooi, B.C., Meng, X. (eds) Database Systems for Advanced Applications. DASFAA 2005. Lecture Notes in Computer Science, vol 3453. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11408079_47
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DOI: https://doi.org/10.1007/11408079_47
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