Comparison of Documents Classification Techniques to Classify Medical Reports

Saad, F., de la Iglesia, B. ORCID: and Bell, G. D. (2006) Comparison of Documents Classification Techniques to Classify Medical Reports. In: Advances in Knowledge Discovery and Data Mining. Lecture Notes in Computer Science, 3918 . Springer Berlin / Heidelberg, pp. 285-291. ISBN 978-3-540-33206-0

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This paper addresses a real world problem: the classification of text documents in the medical domain. There are a number of approaches to classifying text documents. Here, we use a partially supervised classification approach and argue that it is effective and computationally efficient for real-world problems. The approach uses a two-step strategy to cut down on the effort required to label each document for classification. Only a small set of positive documents are labeled initially, with others being labeled automatically as a result of the first step. The second step builds the actual text classifier. There are a number of methods that have been proposed for each step. A comprehensive evaluation of various combinations of methods is conducted to compare their performances using real world medical documents. The results show that using EM based methods to build the classifier yields better results than SVM. We also experimentally show that careful selection of a subset of features to represent the documents can improve the performance of the classifiers.

Item Type: Book Section
Additional Information: Proceedings of the 10th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2006).
Faculty \ School: Faculty of Science > School of Computing Sciences
Depositing User: Vishal Gautam
Date Deposited: 13 Jun 2011 14:17
Last Modified: 14 Feb 2023 10:30
DOI: 10.1007/11731139_34

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