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Paper detail

Communication-Efficient (Weighted) Reservoir Sampling from Fully Distributed Data Streams

We consider communication-efficient weighted and unweighted (uniform) random sampling from distributed data streams presented as a sequence of mini-batches of items. This is a natural model for distributed streaming computation, and our goal is to showcase its usefulness. We present and analyze fully distributed, communication-efficient algorithms for both versions of the problem. An experimental evaluation of weighted reservoir sampling on up to 256 nodes (5120 processors) shows good speedups, while theoretical analysis promises further scaling to much larger machines.

preprint2020arXivOpen access
Lorenz Hübschle-SchneiderPeter Sanders
Data Structures and AlgorithmsDistributed, Parallel, and Cluster Computing
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Lorenz Hübschle-SchneiderPeter Sanders

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