关键词: 模式匹配, 不确定性, 领域知识, 证据组合, 不确定模式匹配

Abstract: To make up the low efficiency of proof combination method in the exiting schema matching, a new model named Uncertain Schema Matching Model (USMM) was proposed, which can process uncertain schema matching. USMM is a multi-dimensional model. Domain knowledge and proof combination method were applied to process uncertainty of schema matching in order to lower the complexity of matching in USMM. Multi-dimensional structural information of schema was adopted in searching for the inner uncertainty of matching. Formalized definitions of uncertain schema matching and uncertain matching relations were put forward. The case study proves that the model is of high practical value.

Key words: schema matching, uncertainty, domain knowledge, proof combination, uncertain schema matching