TY - JOUR
T1 - An effective general purpose approach for automated biomedical document classification.
AU - Cohen, Aaron M.
PY - 2006
Y1 - 2006
N2 - Automated document classification can be a valuable tool for biomedical tasks that involve large amounts of text. However, in biomedicine, documents that have the desired properties are often rare, and special methods are usually required to address this issue. We propose and evaluate a method of classifying biomedical text documents, optimizing for utility when misclassification costs are highly asymmetric between the positive and negative classes. The method uses chi-square feature selection and several iterations of cost proportionate rejection sampling followed by application of a support vector machine (SVM), combining the resulting classifier results with voting. It is straightforward, fast, and achieves competitive performance on a set of standardized biomedical text classification evaluation tasks. The method is a good general purpose approach for classifying biomedical text.
AB - Automated document classification can be a valuable tool for biomedical tasks that involve large amounts of text. However, in biomedicine, documents that have the desired properties are often rare, and special methods are usually required to address this issue. We propose and evaluate a method of classifying biomedical text documents, optimizing for utility when misclassification costs are highly asymmetric between the positive and negative classes. The method uses chi-square feature selection and several iterations of cost proportionate rejection sampling followed by application of a support vector machine (SVM), combining the resulting classifier results with voting. It is straightforward, fast, and achieves competitive performance on a set of standardized biomedical text classification evaluation tasks. The method is a good general purpose approach for classifying biomedical text.
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M3 - Article
C2 - 17238323
AN - SCOPUS:34748876540
SN - 1559-4076
SP - 161
EP - 165
JO - AMIA ... Annual Symposium proceedings / AMIA Symposium. AMIA Symposium
JF - AMIA ... Annual Symposium proceedings / AMIA Symposium. AMIA Symposium
ER -