Automatic Recognition of Chinese Location Entity

Recognition of Chinese location entity is an important part of event extraction. In this paper we propose a novel method to identify Chinese location entity based on the divide-and-conquer strategy. Firstly, we use CRF role labeling to identify the basic place name. Secondly, by using semi-automatic way, we build indicator lexicon. Finally, we propose attachment connection algorithm to connect the basic place name with indicator, then we achieve the identification of location entity. In brief, our method decomposes location entity into basic place name and indicator, which is different from traditional methods. Results of the experiments show that the proposed method has an outstanding effect and the F-value gets to 84.79%.