_必应搜索问答系统在全球化过程中的挑战与方法 (1)&mdash.pdf

1、必应搜索问答系统在全球化过程中的挑战与方法公明 博士 微软（亚洲）互联网工程院 研发总监演讲人介绍演讲人介绍3必应搜索问答的应用场景与系统概况搜索问答系统全球化过程中的核心挑战与解决方法核心DL模型的语言扩展（language scaling）搜索问答系统展望必应搜索问答的应用场景与系统概况搜索问答系统全球化过程中的核心挑战与解决方法核心DL模型的语言扩展（language scaling）搜索问答系统展望What is Bing QnA?-What is the classification of jazz music-Which type of drugs treat toothache-

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3、Yahoo-buy women shoes-amazon promo code 20 off-burberry laptop bag images-BMI calculator-reference,Tom Cruise.xExplicit Question IntentImplicit Question IntentSave users time for diggingBing Question-and-Answering Feature Provide short,direct but precise answer when users search for info.on BingOne

4、of top impact features to bring intelligent searching experience on BingPlaced at the top position of the Bing search result pageBing Question-and-Answering Feature Provide short,direct but precise answer when users search for info.on BingOne of top impact features to bring intelligent searching exp

5、erience on BingPlaced at the top position of the Bing search result pageGeneric Passage(68%)List(20%)Table(2%)What is Bing QnA?Passage QnA(90%)Knowledge-base QnA(10%)Bing QnA Approaches OverviewApproach 1:Knowledge Base QnAApproach 1:Knowledge Base QnAquery understanding structured query(e.g.SPARQL)

6、graph search factLimitation:hard dependencies on QU capability and KB coverageApproach 2:Passage QnAApproach 2:Passage QnAweb search for relevant documents MRC for relevant passage and answer span extractionAdvantages:high coverage&applicable to various question typesBing Passage QnA Ranking Systems