Thai word segmentation with hidden Markov Model and decision tree
Bheganan, Poramin, Nayak, Richi, & Xu, Yue (2009) Thai word segmentation with hidden Markov Model and decision tree. In Theeramunkong, Thanarak (Ed.) Advances in Knowledge Discovery and Data Mining, Springer Berlin / Heidelberg, Bangkok, pp. 74-85.
The Thai written language is one of the languages that does not have word boundaries. In order to discover the meaning of the document, all texts must be separated into syllables, words, sentences, and paragraphs. This paper
develops a novel method to segment the Thai text by combining a non-dictionary based technique with a dictionary-based technique. This method first applies the Thai language grammar rules to the text for identifying syllables. The hidden Markov model is then used for merging possible syllables into words. The identified words are verified with a lexical dictionary and a decision tree is employed to discover the words unidentified by the lexical dictionary. Documents used in the litigation process of Thai court proceedings have been used in experiments. The results which are segmented words, obtained by the proposed method outperform the results obtained by other existing methods.
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|Item Type:||Conference Paper|
|Keywords:||Hidden Markov Model, Thai Word segmentation, Decision tree|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Past > Schools > School of Information Technology
|Copyright Owner:||Copyright 2009 Springer|
|Deposited On:||29 Jan 2010 13:03|
|Last Modified:||01 Mar 2012 00:12|
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