基于Web的问答系统综述

发布时间：2018-03-04 05:08

本文选题：问答系统　切入点：基于Web的问答系统　出处：《计算机科学》2017年06期 　论文类型：期刊论文

【摘要】：微软小冰引发了问答系统的新一轮研究热潮。作为一种新型的信息检索方式,问答系统能直接以自然语言与用户进行人性化的交互。而基于Web的问答系统能通过搜索引擎获取开放的互联网上的各种相关信息,并将以自然语言形式表述的准确答案返回给用户,因此此类系统同时具有搜索引擎和问答系统的优点。首先,对基于Web的问答系统的研究背景与发展历史进行了概述;然后,详细介绍了基于Web的问答系统的架构及其问题分析、信息检索、答案抽取这三大关键技术的研究进展;在此基础上,分析了基于Web的问答系统所面临的问题;最后,对基于Web的问答系统的未来发展趋势进行了展望。
[Abstract]:Microsoft Little Ice has triggered a new round of research on question-and-answer systems. As a new form of information retrieval, The Q & A system can directly interact with the user in natural language, while the Q & A system based on Web can obtain all kinds of relevant information on the open Internet through search engine. And the exact answer expressed in natural language is returned to the user, so this kind of system has the advantages of both search engine and question answering system. Firstly, the research background and development history of question and answer system based on Web are summarized. This paper introduces in detail the structure of the question answering system based on Web and the research progress of the three key technologies: question analysis, information retrieval and answer extraction. On this basis, the problems faced by the question answering system based on Web are analyzed. The future development trend of Q & A system based on Web is prospected.
【作者单位】：北京航空航天大学计算机学院;
【基金】：国家自然科学基金项目(61672081,U1636211) 国家863计划项目(2015AA016004) 北京成像技术高精尖创新中心项目(BAICIT-2016001)资助
【分类号】：TP391.3;TP393.09

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