Semantic Query Expansion Method for Tourism Domain
Shi Yaxian, Pu Li, Bao Xiao, Wei Tingting, Jiang Yuncheng · Jisuanji gongcheng · 2010
Aiming at the problem of returning much results has low currency in traditional semantic query expansion method,this paper presents a semantic weighted query expansion which takes the tourism domain as a background.Query expansion is realized by combining reasoning abilities and the entity relatedness.Frequency weighted which includes TF-IDF algorithm and semantic relevancy weighted is combined to improve the ranking of search results.Experimental results show that this method can make more accord with the requirement of the search results in front,and improve the precision of tourism information query compared with the other two methods.