Keywords Semantic Extension in Semantic Search Model

摘要

The goal of semantic search is to abandon the search model that based on simple keyword matching, combined with semantic technologies, make full use of the characteristics of ontology-based semantic information relationship to provide users with more high-quality and efficient search results. The study of this paper focuses on the semantic extension of keywords in semantic search process, to consider the vocabulary expansion with different factors, thus providing a set of factors that affecting the expansion of the vocabulary and the reasonable weight for these factors that verified by experiment.