A novel approach for agent ontology and its application in question answering

  • Qing-lin Guo (郭庆琳)Email author


The information integration method of semantic web based on agent ontology (SWAO method) was put forward aiming at the problems in current network environment, which integrates, analyzes and processes enormous web information and extracts answers on the basis of semantics. With SWAO method as the clue, the following technologies were studied: the method of concept extraction based on semantic term mining, agent ontology construction method on account of multi-points and the answer extraction in view of semantic inference. Meanwhile, the structural model of the question answering system applying ontology was presented, which adopts OWL language to describe domain knowledge from where QA system infers and extracts answers by Jena inference engine. In the system testing, the precision rate reaches 86%, and the recalling rate is 93%. The experimental results prove that it is feasible to use the method to develop a question answering system, which is valuable for further study in more depth.

Key words

agent ontology question answering semantic web concept extraction answer extraction natural language processing 


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Copyright information

© Central South University Press and Springer Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of Computer Science and TechnologyPeking UniversityBeijingChina
  2. 2.School of Computer Science and TechnologyNorth China Electric Power UniversityBeijingChina

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