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- W1730730025 abstract "We describe an extended bidiagonalization scheme designed to compute low-rank approximations of very large data matrices. Its goal is identical to that of the truncated singular value decomposition, but it is significantly cheaper. It consists in an extension of the standard Lanczos bidiagonalization that improves its approximation capabilities, while keeping the computational cost reasonable. This low-rank approximation yields much cheaper computations of the matrix-vector products that are central in many information retrieval tasks. We demonstrate effectiveness of this approach on applications in face recognition and latent semantic indexing." @default.
- W1730730025 created "2016-06-24" @default.
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- W1730730025 date "2012-01-01" @default.
- W1730730025 modified "2023-09-24" @default.
- W1730730025 title "Extended Lanczos Bidiagonalization for Dimension Reduction in Information Retrieval" @default.
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