Similarity Based Chinese Synonym Collocation Extraction

Wan-Yin Li ； Qin Lu ； Rui-Feng Xu

《中文計算語言學期刊》 10卷1期 (2005/03) Pp. 123-143

https://doi.org/10.30019/IJCLCLP.200503.0006

並列摘要

Collocation extraction systems based on pure statistical methods suffer from two major problems. The first problem is their relatively low precision and recall rates. The second problem is their difficulty in dealing with sparse collocations. In order to improve performance, both statistical and lexicographic approaches should be considered. This paper presents a new method to extract synonymous collocations using semantic information. The semantic information is obtained by calculating similarities from HowNet. We have successfully extracted synonymous collocations which normally cannot be extracted using lexical statistics. Our evaluation conducted on a 60MB tagged corpus shows that we can extract synonymous collocations that occur with very low frequency and that the improvement in the recall rate is close to 100%. In addition, compared with a collocation extraction system based on the Xtract system for English, our algorithm can improve the precision rate by about 44%.

並列關鍵字

Lexical Statistics ； Synonymous Collocations ； Similarity ； Semantic Information

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