Improving Bilingual Lexicon Construction from Chinese-English Comparable Corpora via Dependency Relationship Mapping

Abstract

Currently context-based approach is a popular approach for constructing bilingual lexicons from comparable corpora. Following this line of research, this paper proposes a dependency relationship mapping model and investigates its effect on bilingual lexicon construction. The experiments show that, by mapping context words, dependency relationship types and directions simultaneously when calculating the similarity between two words in the source and target languages respectively, our approach significantly outperforms a state-of-the-art system in bilingual lexicon construction from either Chinese-English or English-Chinese. This justifies the effectiveness of our dependency relationship mapping model on bilingual lexicon construction.