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Title: Dimensionality reduction via discretization
Authors: Liu, H. 
Setiono, R. 
Keywords: Dimensionality reduction
Knowledge discovery
Issue Date: Feb-1996
Citation: Liu, H., Setiono, R. (1996-02). Dimensionality reduction via discretization. Knowledge-Based Systems 9 (1) : 67-72. ScholarBank@NUS Repository.
Abstract: The existence of numeric data and large numbers of records in a database present a challenging task in terms of explicit concepts extraction from the raw data. The paper introduces a method that reduces data vertically and horizontally, keeps the discriminating power of the original data, and paves the way for extracting concepts. The method is based on discretization (vertical reduction) and feature selection (horizontal reduction). The experimental results show that (a) the data can be effectively reduced by the proposed method; (b) the predictive accuracy of a classifier (C4.5) can be improved after data and dimensionality reduction; and (c) the classification rules learned are simpler.
Source Title: Knowledge-Based Systems
ISSN: 09507051
DOI: 10.1016/0950-7051(95)01030-0
Appears in Collections:Staff Publications

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