基于多角度关联模型的实体检索方法

Entity Retrieval Method Based on Multi-perspective Association Model

针对信息检索领域特定类型实体的检索问题,在传统搜索引擎的基础上,提出一种基于多角度关联模型的实体检索方法,综合运用实体名识别(NER)、文本向量、关联规则等技术以及Wikipedia、Stanford NER等工具,并在TREC2010实体检索项目中进行评测。实验结果表明,与基于BM25和贝叶斯模型的检索方法相比,该方法的nDCG@R值平均提高11.49%和18.09%。

This paper proposes an entity search method based on multi-perspective association model for the problem of searching particular type of entities in information retrieval field.The method employs Named Entity Recognition（NER）,text vector,association rules,etc,and traditional search engines as well as Wikipedia,Stanford NER etc.Experimental result on the large Web data collection provided show that,compared with BM25 and traditional Bayesian model,this method increases nDCG@R by 11.49% and 18.09% separately.