@inproceedings{58a60f8421a04b0a890deb653926cfa9,
title = "A novel weighting formula and feature selection for text classification based on rough set theory",
abstract = "Weighting formula and feature selection are key preprocessing in text classifying and mining. We analyze the drawbacks of weighting formula based on inverse document frequency and present a novel feature weighting and selecting method based on variable precision rough set model. Inverse document frequency (IDF) doesn't take the classification information into account and the criterion based on IDF is not monotonous with the contribution that a feature makes to classification, which will decrease the classifier's performance. The measure of classification quality based on variable rough set model can deal with complicate classification. It measures the contribution a feature makes to classification. It is introduced as a criterion for feature selecting and weighting in text classification. We name it as TFACQ. The experimental results show that the weighting formula and feature selection based on TFACQ have greatly improved the performance.",
author = "Qinghua Hu and Daren Yu and Yanfeng Duan and Wen Bao",
note = "Publisher Copyright: {\textcopyright} 2003 IEEE.; International Conference on Natural Language Processing and Knowledge Engineering, NLP-KE 2003 ; Conference date: 26-10-2003 Through 29-10-2003",
year = "2003",
doi = "10.1109/NLPKE.2003.1275985",
language = "英语",
series = "NLP-KE 2003 - 2003 International Conference on Natural Language Processing and Knowledge Engineering, Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "638--645",
editor = "Chengqing Zong",
booktitle = "NLP-KE 2003 - 2003 International Conference on Natural Language Processing and Knowledge Engineering, Proceedings",
address = "美国",
}