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ID:37302107
大小:1.03 MB
页数:19页
时间:2019-05-21
《知识图谱构建技术综述》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、计算机研究与发展DOI:10.7544?issn1000-1239.2016.20148228JournalofComputerResearchandDevelopment53(3):582-600,2016知识图谱构建技术综述刘峤李杨段宏刘瑶秦志光(电子科技大学信息与软件工程学院成都610054)(qliu@uestc.edu.cn)KnowledgeGraphConstructionTechniquesLiuQiao,LiYang,DuanHong,LiuYao,andQinZhiguang(SchoolofInformationandSoftwareEngineeri
2、ng,UniversityofElectronicScienceandTechnologyofChina,Chengdu610054)AbstractGooglesknowledgegraphtechnologyhasdrawnalotofresearchattentionsinrecentyears.However,duetothelimitedpublicdisclosureoftechnicaldetails,peoplefinditdifficulttounderstandtheconnotationandvalueofthistechnology.Inthisp
3、aper,weintroducethekeytechniquesinvolvedintheconstructionofknowledgegraphinabottom-upway,startingfromaclearlydefinedconceptandatechnicalarchitectureoftheknowledgegraph.Firstly,wedescribeindetailthedefinitionandconnotationoftheknowledgegraph,andthenweproposethetechnicalframeworkforknowledge
4、graphconstruction,inwhichtheconstructionprocessisdividedintothreelevelsaccordingtotheabstractleveloftheinputknowledgematerials,includingtheinformationextractionlayer,theknowledgeintegrationlayer,andtheknowledgeprocessinglayer,respectively.Secondly,theresearchstatusofthekeytechnologiesforea
5、chlevelaresurveyedcomprehensivelyandalsoinvestigatedcriticallyforthepurposesofgraduallyrevealingthemysteriesoftheknowledgegraphtechnology,thestate-of-the-artprogress,anditsrelationshipwithrelateddisciplines.Finally,fivemajorresearchchallengesinthisareaaresummarized,andthecorrespondingkeyre
6、searchissuesarehighlighted.Keywordsknowledgegraph;semanticWeb;informationretrieval;semanticsearchengine;naturallanguageprocessing摘要谷歌知识图谱技术近年来引起了广泛关注,由于公开披露的技术资料较少,使人一时难以看清该技术的内涵和价值.从知识图谱的定义和技术架构出发,对构建知识图谱涉及的关键技术进行了自底向上的全面解析.1)对知识图谱的定义和内涵进行了说明,并给出了构建知识图谱的技术框架,按照输入的知识素材的抽象程度将其划分为3个层次:信息抽取层、
7、知识融合层和知识加工层;2)分别对每个层次涉及的关键技术的研究现状进行分类说明,逐步揭示知识图谱技术的奥秘,及其与相关学科领域的关系;3)对知识图谱构建技术当前面临的重大挑战和关键问题进行了总结.关键词知识图谱;语义网;信息检索;语义搜索引擎;自然语言处理中图法分类号TP18收稿日期:2014-11-06;修回日期:2015-04-08基金项目:国家“八六三”高技术研究发展计划基金项目(2011AA010706);国家自然科学基金项目(61133016,61272527);教育部-中国移动科研基金项目(MCM201
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