问答系统中的知识图谱-沈李斌


! Knowledge Graphs for Question Answering joint work with colleagues at Mobvoi 2014-10-17 Watson IBM Watson in Jeopardy! wikipedia 70 IR+NLP+ML Google Now 58% 88% Google 5 objects 35 facts relations 2012/05 Android wear Glass POI 60 ASR NLP IR+ML Watson DBPedia Watson Jeopardy! frames Wikipedia DBPedia Watson - Prismatic Linguistic Frame Extraction 10 Frames 2TB SVO/is-a Watson - KAFE Knowledge From Extracted Content Watson KG Query A 1992 movie starring Anthony Hopkins was based on a book by this author temporal_relation(Event A, Event B) Accuracy 1% Watson KG Query This state which lies to the NE of Nebraska spatial_relation(Entity A, Entity B) Accuracy 1.5% Watson KG LAT EDM WordNet PDM LAT WordNet WordNet Equivalent/subclass Disjoint Sibling Superclass Statistical LCA Accuracy 3% Watson KG Semantic frame LANGUAGE: The lead singer of the band Dengue Fever is from this country & often sings in Khmer. (Answer: Cambodia) Jeopardy! 7% query POI App API schema Graph database / Query Query Query NN VV NN Query Query Query Query Query “ ” Query “ ” “ ” Query Query
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