Title :
Semantic Unit Based Question Representation
Author :
Xiaoming, Liu ; Jian, Zhu
Author_Institution :
Beijing Inst. of Technol., Beijing, China
Abstract :
Question representation is a fundamental task in Question Answering (QA) system. An approach based on semantic unit (SU) is proposed, which selects the domain words and phrases as semantic components, and organize them together to form SU instances according their relationships in domain ontology. The question is represented by the vector of SU instances. With the supports of shallow semantic analysis and domain ontology, SUs instances are easily constructed and extracted using some simple rules. In a QA system of computer fault diagnoses restricted domain, the proposed method has been employed and implemented. Experimental results have shown its efficiency and contributions to the improvement of overall performance of QA.
Keywords :
natural language processing; ontologies (artificial intelligence); question answering (information retrieval); semantic networks; QA; SU; computer fault diagnoses; domain ontology; domain phrase selection; domain word selection; information retrieval; natural language processing; question answering system; semantic components; semantic unit based question representation; shallow semantic analysis; Industrial control; Natural Language Processing; Question Semantic Representation; Semantic Unit;
Conference_Titel :
Industrial Control and Electronics Engineering (ICICEE), 2012 International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-1450-3
DOI :
10.1109/ICICEE.2012.420
