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- W2130484710 abstract "We develop Conditional Random Sampling (CRS), a technique particularly suitable for sparse data. In large-scale applications, the data are often highly sparse. CRS combines sketching and sampling in that it converts sketches of the data into conditional random samples online in the estimation stage, with the sample size determined retrospectively. This paper focuses on approximating pairwise l2 and l1 distances and comparing CRS with random projections. For boolean (0/1) data, CRS is provably better than random projections. We show using real-world data that CRS often outperforms random projections. This technique can be applied in learning, data mining, information retrieval, and database query optimizations." @default.
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- W2130484710 date "2007-09-07" @default.
- W2130484710 modified "2023-10-16" @default.
- W2130484710 title "Conditional Random Sampling: A Sketch-based Sampling Technique for Sparse Data" @default.
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- W2130484710 doi "https://doi.org/10.7551/mitpress/7503.003.0114" @default.
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