网络有哪些信誉好的足球投注网站填补信息断层.pptxVIP

网络有哪些信誉好的足球投注网站填补信息断层.pptx

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Web Search: Filling the Information GapYanyan Lan (兰艳艳)Web Data Science and Engineering Research Center, Institute of Computing Technology, CASAbout Our TeamWeb Data Science and Engineering Research Center, ICTLab Head Researcher: Xueqi Cheng (程学旗)Research Department (Xiaolong Jin(靳小龙), Jiafeng Guo(郭嘉丰)): Web Search and Data Mining (WSDM)Yanyan Lan(兰艳艳)Network Analysis and Social Computing (NASC)Huawei Shen(沈华伟)Research Platform (Soscholar天玑学术网)Lei Cao(曹雷)Group of WSDMGroup of NASCGroup of Research PlatformBig data research platformVertical Collaborative SystemAnalysis EngineSearch EngineSocial EngineRecommendation EngineLearning to rankQuery refinementHeterogeneous network mining…Learning to recommendCollaborative filteringName disambiguation…Web Search: Filling the Information GapWeb Searchmachine learningResearch Focus: Filling the Info. GapQuery SpaceDocument SpaceMatchingParsing/NERTopic ModelingClassification/ClusteringLearning on graphSummarization…Classification/ClusteringStructure predictionTopic modelingSimilarity learningPerformance prediction…Language modelLearning to rank…RankingQuery Understanding and RepresentationDocument Understanding and ProcessingQuery Recommendation (ECIR’13, CIKM ’12, WWW ’11, SIGIR’11 QRU , SIGIR’10 QRU, CIKM ‘10, ECAI ‘10)Query Similarity (CIKM ‘11)Query Parsing (SIGIR’09)Query Refinement (SIGIR’08)...Top-k LTR (SIGIR ’12, CIKM ’12)Ranking Consistency (NIPS’12)Diversity Rank (TKDE ‘11)Learning to Rank (FCSC, SIGIR ‘08)Learning with Noisy Data (IPM)Language Model (WI ‘08)Feature Selection (SIGIR ’07)...Sparse topic modeling (WSDM’13, WWW’13, SDM’13)Short text modeling (CIKM ’12)Document Summarization (SIGIR ‘11, CIKM ‘10, CIKM ‘08)Document Annotation (WWW’09) Online Indexing (CIKM’07)…Today’s TopicsPart I: Query Understanding and RepresentationPart II: Ranking Algorithms and TheoriesPart I: Query Understanding and RepresentationQuery Understanding and Representation查询UserSearch Engine=“Black Box”The First Step of IRIt is never

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