...问答系统 答案抽取 置信度 逻辑回归[gap=1275]Key words: pattern learning; question answering system; answer extraction; confidence; logistic regression...
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Q&A system is composed of threecomponents - query analysis, information retrieval and answer extraction.
问答系统分为查询句分析、信息检索、答案抽取三大部分。
参考来源 - 面向网络的中文问答系统相关技术的研究与系统初步实现QA detailed on understanding of the issues, information retrieval and answer extraction, as well as for each part.
详细介绍问答系统的问题理解、信息检索和答案提取,以及分别对每个部分的详细介绍。
参考来源 - 中文问答系统中答案提取的研究In the answer extraction module, this paper proposes for the first time a binary-classification approach for answer extraction.
答案抽取模块中,本文首次提出把答案的抽取问题转化成一个对候选答句进行二分类的问题。
参考来源 - 基于句法分析和机器学习的中文自动问答系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Question answering system is composed of three parts which is question analysis, information retrieval and answer extraction.
问答系统由问题理解、信息检索、答案抽取三个部分组成。
Then semantic roles of sentences are used in answer extraction of the question answering system, and it improves the system's accuracy.
然后将语义角色信息用于问答系统的答案抽取中，提高了问答系统的精度。
Candidate answer sentence extraction is an important part of answer extraction, which directly effects question answering system's performance.
候选答案句抽取是问答系统中答案抽取的重要组成部分，其质量直接影响问答系统的性能。
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