摘要
目前的中文问答系统主要是针对有关命名实体的问句进行回答,而对"为什么"开头的问句研究并不多。本研究主要是以搜索引擎返回的网络摘要,从摘要中取得因果关系的句子,再根据预先设定好的因果模式进行权重计算,将权重大的句子返回给用户。实验结果表明,该系统效果显著,对测试问句集的MRR值达到了0.52。
At present,the Chinese Question Answering System was mostly aimed at some questions of named entities to give answers,while few researches were aimed at＂Why＂interrogative Sentences.In this paper,cause-effect relationship sentences from some snippets of the Search Engine were extracted,and then the weight of every sentence was measured according to the causeeffect patterns.The experiment results indicated that the system could get relatively good results,with the MRR of all questions at 0.52.
出处
《农业网络信息》
2010年第11期90-91,共2页
Agriculture Network Information
关键词
问答系统
模式
距离
question answering system
patterns
distance
