Research of thematic terms extraction algorithm from Chinese text based on increment term set frequency
基于增量词集频率的文本主题词提取算法研究*

This paper presented an algorithm of thematic terms extraction based on increment term set frequency, the main idea was to calculated the increment frequency of term set,when this algorithm got a term from candidate thematic term set, calculated the increment frequency, if the increment was less than a given threshold, then ended, otherwise, added the candidate thematic term into thematic term set, then next term.Experimental results show that this algorithm achieves sound effects, the thematic terms that acquires by this algorithm can more aptly reflect the main contents of the article.