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- W2018605660 abstract "Collaborative filtering aims at learning predictive models of user preferences, interests or behavior from community data, i.e. a database of available user preferences. In this paper, we describe a new model-based algorithm designed for this task, which is based on a generalization of probabilistic latent semantic analysis to continuous-valued response variables. More specifically, we assume that the observed user ratings can be modeled as a mixture of user communities or interest groups, where users may participate probabilistically in one or more groups. Each community is characterized by a Gaussian distribution on the normalized ratings for each item. The normalization of ratings is performed in a user-specific manner to account for variations in absolute shift and variance of ratings. Experiments on the EachMovie data set show that the proposed approach compares favorably with other collaborative filtering techniques." @default.
- W2018605660 created "2016-06-24" @default.
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- W2018605660 date "2003-07-28" @default.
- W2018605660 modified "2023-10-16" @default.
- W2018605660 title "Collaborative filtering via gaussian probabilistic latent semantic analysis" @default.
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- W2018605660 doi "https://doi.org/10.1145/860435.860483" @default.
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