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ComputingComputer ScienceComputational LinguisticsInformation RetrievalNatural Language ProcessingLanguage ModelsProbabilistic RetrievalRetrieval ModelsText MiningText RepresentationTopic ModelingBinomial Mixture ModelsBinomial RegressionMixture ModelMixture Models For RetrievalMixture Models For TextProbabilistic Topic Models For RetrievalTopic Tracking