Building knowledge base from semi-structured data

Abstract

Semantic pattern is kind of template with semantic information, and it can be used to structurize a sentence. In this paper, semantic pattern based question and its corresponding answers are used as the data resource of knowledge base. The exact answer is extracted from plain text answer by matching of question and answer. Two kinds of matching methods and the experiment results are simple presented. Extracted exact answer and semantic pattern based question are composed of a structured information unit which can be inserted into knowledge base with the assistance of ontology. The disease ontology is studied for illustration. Our approach to knowledge base construction is concise and effective. © 2007 IEEE.