31 / 2015-08-30 16:05:36

Research on the Theory and Methods for Similarity Calculation of Rough Formal Concept in Missing-Value Context

ontology; similarity; weighted attributes

In this paper, for the low similarity computation accuracy of concept in the field of agriculture ontology mapping, formal concept analysis theory and rough set theory are introduced to similarity computation. Jointly considering attribute hierarchies in concept lattice, the semantic hierarchy of the concepts are weighted differently, and the theory and methods of similarity calculation of rough formal concept in missing-value context is given. Finally, similarity computing model is prospected. Experimental results show the model has a high computational accuracy.