Research on Automatic Acquiring of Chinese Synonyms from Wiki Repository

Automatic acquiring of synonyms plays an important role in information retrieval and semantic resource development. In order to enhance the ability of the Chinese synonyms acquiring, this paper presents pattern matching approach and PageRank algorithm approach based on the Wiki repository. In pattern matching approach, we analyze the defining and explaining paragraph of the entry in the Wiki repository and form some acquiring rules of synonyms by hands, then automatic extract synonyms by pattern matching. The second method is PageRank algorithm, we analyze the relation between given words and the other words, then construct the associated word graph., and finally use the PageRank algorithm to calculate the similarity degree and discover the synonyms in the associated word graph. The test result indicated that the method is feasible and practical.