Passage-level evidence in document retrieval
SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
Distributional clustering of words for text classification
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
Learning to extract symbolic knowledge from the World Wide Web
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Learning to classify text from labeled and unlabeled documents
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
A re-examination of text categorization methods
Proceedings of the 22nd annual international ACM SIGIR conference on Research and development in information retrieval
BoosTexter: A Boosting-based Systemfor Text Categorization
Machine Learning - Special issue on information retrieval
Machine learning in automated text categorization
ACM Computing Surveys (CSUR)
Text Categorization with Suport Vector Machines: Learning with Many Relevant Features
ECML '98 Proceedings of the 10th European Conference on Machine Learning
Distributional word clusters vs. words for text categorization
The Journal of Machine Learning Research
High precision retrieval using relevance-flow graph
Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
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In previous research of text categorization, a word is usually described by features which express that whether the word appears in the document or how frequently the word appears. Although these features are useful, they have not fully expressed the information contained in the document. In this paper, the distributional features are used to describe a word, which express the distribution of a word in a document. In detail, the compactness of the appearances of the word and the position of the first appearance of the word are characterized as features. These features are exploited by a TFIDF style equation in this paper. Experiments show that the distributional features are useful for text categorization. In contrast to using the traditional term frequency features solely, including the distributional features requires only a little additional cost, while the categorization performance can be significantly improved.