IIIT Hyderabad Publications |
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PurposeNet : A Knowledgebase Organized Around PurposeAuthors: Rajeev Sangal,Soma Paul,P Kiran Mayee Conference: The 20th International Conference on Conceptual Structures (ICCS 2013 2013) Date: 2013-01-10 Report no: IIIT/TR/2013/18 AbstractWe show how purpose can be used as a central guiding principle for organizing knowledge about artifacts. It allows the actions in which the artifact participates to be related naturally to other objects. Similarly, the structure or parts of artifact can also be related to actions. A knowledgebase called PurposeNet has been built using these principles. A comparison with other knowledgebases shows that it is a superior method in terms of coverage. It also makes it possible for automatic extraction of simple facts (or information) from text for populating a richly structured knowledge-base. An experiment in domain-specific question-answering from a given passage shows that PurposeNet used along with scripts (or knowledge of stereotypical situations), can lead to substantially higher accuracy in question answering. In the domain of car racing, individually they produce correct answers to 50% and 37.5% questions respectively, but together they produce 89% of correct answers. Full paper: pdf Centre for Language Technologies Research Centre |
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