云计算时代的社交网络平台和技术180million(↑25%)GoogleChinaOrganizingtheWorld’sInformation,SociallyWeb1.0WebwithPeople(2.0)+SocialPlatforms10/6/202410/6/202410/6/2024开放社区平台10/6/202410/6/202410/6/202410/6/2024开放社区平台10/6/202410/6/2024开放社区平台10/6/2024SocialGraph10/6/2024WhatUsersWant?InformationOverflowChallengeRecommendationSystemOrganizingtheWorld’sInformation,Sociallypicturesource:http://www.sis.pitt.edu互联网搜索：云计算的例子Givenamatrixthat“encodes”dataGivenamatrixthat“encodes”dataCollaborativeFiltering(CF)[Breese,HeckermanandKadie1998]Memory-BasedModel[Goldbertetal.1992;Resniketal.1994;Konstantetal.1997]Model-BasedModel[Breeseetal.1998;Hoffman1999;Bleietal.2004]AlgorithmSelectionCriteriaModel-basedPriorWorkLatentSemanticAnalysis(LSA)[Deerwesteretal.1990]LatentSemanticAnalysis(cont.)ProbabilisticLatentSemanticAnalysis(PLSA)[Hoffman1999;Hoffman2004]PLSAextensionsCombinationalCollaborativeFiltering(CCF)NotationsBaselineModelsBaselineModels(cont.)CCFModelAlgorithmRequirementsParallelizingCCFpicturesource:http://www.sis.pitt.eduExperimentsonOrkutDatasetCommunityRecommendationResultsRuntimeSpeedupRuntimeSpeedup(cont.)CCFSummaryChina’sContributionson/toCloudComputingSpeedingupSVMs[NIPS2007]IncompleteCholeskyFactorization(ICF)MatrixProductOrganizingtheWorld’sInformation,SociallyWebWithPeopleWhatNextforWebSearch?个人搜索智能搜索10/6/202410/6/202410/6/2024OrganizingWorld’sInformation,SociallyReferencesReferences(cont.)References(cont.)