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The concept semantic similarity computation has vast application in the question answering system field, semantic similarity is becoming the basis of semantic expansion in the question answering system, and influences the recall rate and precision rate of the question answering system immensely. After we analyze the traditional method of semantic similarity computation, we consider comprehensively...
Question Understanding of Chinese Question-Answering System generally includes steps such as: word segmentation, POS Tagging, keywords expansion, information retrieval etc. The extended keyword set usually has redundant messages and part of the words and phrases may be not relevant to the question. Consequently, information retrieval with the extended keywords set may bring about large numbers of...
As the core of answer extraction of question answering system of restricted domain, reasoning plays an important role in the system. In question answering system of restricted domain, we use ontology model. How to reason with ontology model depicted with OWL using the protégé and Jena API are discussed, then, the reasoning application of Taiyuan hospital information retrieval system is also discussed...
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