Chinese term extraction using minimal resources

Abstract

This paper presents a new approach for term extraction using minimal resources. A term candidate extraction algorithm is proposed to identify features of the relatively stable and domain independent term delimiters rather than that of the terms. For term verification, a link analysis based method is proposed to calculate the relevance between term candidates and the sentences in the domain specific corpus from which the candidates are extracted. The proposed approach requires no prior domain knowledge, no general corpora, no full segmentation and minimal adaptation for new domains. Consequently, the method can be used in any domain corpus and it is especially useful for resource-limited domains. Evaluations conducted on two different domains for Chinese term extraction show quite significant improvements over existing techniques and also verify the efficiency and relative domain independent nature of the approach. Experiments on new term extraction also indicate that the approach is quite effective for identifying new terms in a domain making it useful for domain knowledge update.