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- W2615000921 abstract "Large-scale machine learning (ML) algorithms are often iterative, using repeated read-only data access and I/Obound matrix-vector multiplications to converge to an optimal model. It is crucial for performance to fit the data into single-node or distributed main memory and enable very fast matrix-vector operations on in-memory data. Generalpurpose, heavy- and lightweight compression techniques struggle to achieve both good compression ratios and fast decompression speed to enable block-wise uncompressed operations. Compressed linear algebra (CLA) avoids these problems by applying lightweight lossless database compression techniques to matrices and then executing linear algebra operations such as matrix-vector multiplication directly on the compressed representations. The key ingredients are effective column compression schemes, cache-conscious operations, and an efficient sampling-based compression algorithm. Experiments on an initial implementation in SystemML show in-memory operations performance close to the uncompressed case and good compression ratios.We thereby obtain significant end-to-end performance improvements up to 26x or reduced memory requirements." @default.
- W2615000921 created "2017-05-26" @default.
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- W2615000921 date "2017-05-12" @default.
- W2615000921 modified "2023-09-23" @default.
- W2615000921 title "Scaling Machine Learning via Compressed Linear Algebra" @default.
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- W2615000921 doi "https://doi.org/10.1145/3093754.3093765" @default.
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