【摘要】 基于社区的问答是近几年出现并流行的一种有效的信息搜寻网络应用。本文测试了百度知道、搜搜问问、雅虎知识堂、爱问知识人等四个基于社区的问答站点搜索引擎检索结果重合情况和差异情况,以期对问答内容搜索有所助益。实验结果表明这四个站点搜索引擎返回结果第1页的的重合率为0.16%,独有率平均为93.76%,仅使用其中1个搜索引擎,漏检率平均为74.17%。更多还原

【Abstract】 Community-based question answering is recently popular and effective as a web information search tool.This paper measures the overlap and difference of the first result page for such search engines as zhidao,soso,yahoo and iask to provide some assistance or hints for users answers search in these sites.Experiments show that the results overlap rate of these search engines is 0.16% and that the average uniqueness rate is 93.76%.The average results missing rate is 74.17% if only one site is employed.更多还原