Web-Based Query Translation for English-Chinese CLIR
Dictionary-based translation is a traditional approach in use by cross-language information retrieval systems. However, significant performance degradation is often observed when queries contain words that do not appear in the dictionary. This is called the Out of Vocabulary (OOV) problem. In recent years, Web mining has been shown to be one of the effective approaches for solving this problem. However, the questions of how to extract Multiword Lexical Units (MLUs) from the Web content and how to select the correct translations from the extracted candidate MLUs are still two difficult problems in Web mining based automated translation approaches. Most statistical approaches to MLU extraction rely on statistical information extracted from huge corpora. In the case of using Web mining techniques for automated translations, these approaches do not perform well because the size of the corpus is usually too small and statistical approaches that rely on a large sample can become unreliable. In this paper, we present a new Chinese term measurement and a new Chinese MLU extraction process that work well on small corpora. We also present our approach to the selection of MLUs in a more accurate manner. Our experiments show marked improvement in translation accuracy over other commonly used approaches.
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|Item Type:||Journal Article|
|Additional Information:||The contents of this journal can be freely accessed online via the journal's web page (see hypertext link).|
|Keywords:||Cross, Language Information Retrieval, CLIR, Query Translation, Web Mining, OOV Problem, Term Extraction|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2008 Association for Computational Linguistics and Chinese Language Processing|
|Deposited On:||17 Oct 2008|
|Last Modified:||09 Jun 2010 23:05|
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