Information Retrieval Based on Formal Concept Analysis
In information retrieval, in order to improve the recall and precision, similar concepts are often processed during the information retrieval. With this regard, the possibility of evaluating concept similarity is acquiring an increasing relevance, since it allows the identification of different concepts that are semantically close. For every concept consist of two parts which include objects and attributes, so the computing model also has two parts. First part deals with the objects similarity by using hierarchy structure of concept lattice. The second part deals with the attributes similarity by using the experts knowledge. Beside this, the depth also has relevance with concepts similarity. So the result is altered with concepts depth. Experiment shows using concept lattice could improve information retrievals recall and precision.
Concept lattice information retrieval concept similarity generation operation expansion operation
ZHI Dongjie
School of Compute Science and Technology, Henan Polytechnic University, Jiaozuo, Henan, P.R.China,454000
国际会议
河南焦作
英文
741-745
2011-04-22（万方平台首次上网日期，不代表论文的发表时间）