An Iterative Approach to Word Sense Disambiguation
Proceedings of the Thirteenth International Florida Artificial Intelligence Research Society Conference
Using the web to obtain frequencies for unseen bigrams
Computational Linguistics - Special issue on web as corpus
Lexical cohesion computed by thesaural relations as an indicator of the structure of text
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TextTiling: segmenting text into multi-paragraph subtopic passages
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Computational Linguistics - Special issue on word sense disambiguation
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ACL '95 Proceedings of the 33rd annual meeting on Association for Computational Linguistics
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Computational Linguistics
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AAAI'04 Proceedings of the 19th national conference on Artifical intelligence
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COLING '08 Proceedings of the 22nd International Conference on Computational Linguistics - Volume 1
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CICLing'03 Proceedings of the 4th international conference on Computational linguistics and intelligent text processing
Using web-search results to measure word-group similarity
COLING '08 Proceedings of the 22nd International Conference on Computational Linguistics - Volume 1
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The use of topical features is abundant in Natural Language Processing (NLP), a major example being in dictionary-based Word Sense Disambiguation (WSD). Yet previous research does not attempt to measure the level of topic cohesion in documents, despite assertions of its effects. This paper introduces a quantitative measure of Topic Homogeneity using a range of NLP resources and not requiring prior knowledge of correct senses. Evaluation is performed firstly by using the WordNet::Domains package to create word-sets with varying levels of homogeneity and comparing our results with those expected. Additionally, to evaluate each measure's potential value, the homogeneity results are correlated against those of 3 co-occurrence/dictionary-based WSD techniques, tested on 1040 Semcor and SENSEVAL sub-documents. Many low-moderate correlations are found to exist with several in the moderate range (above .40). These correlations surpass polysemy and senseentropy, the 2 most cited factors affecting WSD. Finally, a combined homogeneity measure achieves correlations of up to .52.