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Building bilingual dictionaries from parallel web documents

McEwan, C.J.A. and Ounis, I. and Ruthven, I. (2002) Building bilingual dictionaries from parallel web documents. In: Advances in Information Retrieval. Lecture Notes in Computer Science, 2291 . Springer, Germany, pp. 303-323. ISBN 978-3-540-43343-9

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In this paper we describe a system for automatically constructing a bilingual dictionary for cross-language information retrieval applications. We describe how we automatically target candidate parallel documents, filter the candidate documents and process them to create parallel sentences. The parallel sentences are then automatically translated using an adaptation of the EMIM technique and a dictionary of translation terms is created. We evaluate our dictionary using human experts. The evaluation showed that the system performs well. In addition the results obtained from automatically-created corpora are comparable to those obtained from manually created corpora of parallel documents. Compared to other available techniques, our approach has the advantage of being simple, uniform, and easy-to-implement while providing encouraging results.