Semantic orientation identification for Chinese opinion terms

Opinion mining is a new hotspot in the area of natural language processing.Determining the opinion orientation of the glossary is a foundation and very important component in an opinion mining system.An experiment is carried out on opinion ori-entation identifying for Chinese opinion terms.In the experiment,the authors take the words which are in COMTEMPORARY CHINESE LANGUAGE ORIENTATION USAGE DICTIONARY as the seed words,and extend them by synonyms dictionary.Fur-ther more,Bigram theory is adopted to disambiguate the multi-orientation for one word.The F-score of the experiment reaches 79.31% for positive words and 78.18% for negative words.