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- W2890796253 abstract "This paper studies statistical relationships among components of high-dimensional observations varying across non-random covariates. We propose to model the observation elements' changing covariances as sparse multivariate stochastic processes. In particular, our novel covariance modeling method reduces dimensionality by relating the observation vectors to a lower dimensional subspace. To characterize the changing correlations, we jointly model the latent factors and the factor loadings as collections of basis functions that vary with the covariates as Gaussian processes. Automatic relevance determination (ARD) encodes basis sparsity through their coefficients to account for the inherent redundancy. Experiments conducted across domains show superior performances to the state-of-the-art methods." @default.
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- W2890796253 date "2018-01-01" @default.
- W2890796253 modified "2023-10-08" @default.
- W2890796253 title "Sparse Covariance Modeling in High Dimensions with Gaussian Processes." @default.
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