Bilingual Dictionary Extraction from Wikipedia

The way of mining comparable corpora and the strategy of dictionary extraction are two essential elements of bilingual dictionary extraction from comparable corpora. This paper first proposes a method, which uses the interlanguage link in Wikipedia, to build comparable corpora. The large scale of Wikipedia ensures the quantity of collected comparable corpora. Besides, because the inter-language link is created by article author, the quality of collected corpora can also be guaranteed. After that, this paper presents an approach, which combines context heterogeneity similarity and dependency heterogeneity similarity, to extract bilingual dictionary from the collected comparable corpora. Experimental results show that because of combining the advantages of context heterogeneity similarity and dependency heterogeneity similarity appropriately, the proposed approach outperforms both the two individual approaches.