Volume 27, Issue 2 (3-2012)                   ... 2012, 27(2): 798-813 | Back to browse issues page

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Nezarat A, Mosavi Miangah T. Designing and Implementing a Cross-Language Information Retrieval System Using Linguistic Corpora. .... 2012; 27 (2) :798-813
URL: http://jipm.irandoc.ac.ir/article-1-1869-en.html
Islamic Azad University, Yazd Branch
Abstract:   (13976 Views)
Information retrieval (IR) is a crucial area of natural language processing (NLP) and can be defined as finding documents whose content is relevant to the query need of a user. Cross-language information retrieval (CLIR) refers to a kind of information retrieval in which the language of the query and that of searched document are different. In fact, it is a retrieval process where the user presents queries in one language to retrieve documents in another language. This paper tried to construct a bilingual lexicon of parallel chunks of English and Persian from two very large monolingual corpora an English-Persian parallel corpus which could be directly applied to cross-language information retrieval tasks. For this purpose, a statistical measure known as Association Score (AS) was used to compute the association value between every two corresponding chunks in the corpus using a couple of complicated algorithms. Once the CLIR system was developed using this bilingual lexicon, an experiment was performed on a set of one hundred English and Persian phrases and collocations to see to what extend this system was effective in assisting the users find the most relevant and suitable equivalents of their queries in either language.
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Type of Study: Research | Subject: Library and Information Science
Received: 2012/03/17 | Published: 2012/03/15

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