Chinese Junk SMS Retrieval Based on Query Words Expansion
Liu Jin-ling · Jisuanji gongcheng · 2011
The keywords used in information retrieval and text messages in junk SMS retrieval do not match,so it affects information retrieval.This paper proposes a new method of query expansion words on the basic of context and global information.At the same time,the expansion words are selected according to their relation with the whole query.Additionally,the position information between words is considered.The paper selects 3 000 text messages to be tested,results show that the method improves the average precision.