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The Cartographer
Practical Trade-Offs for the Prefix-Sum Problem
June 25, 2020 Β· Declared Dead Β· π Software, Practice & Experience
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Authors
Giulio Ermanno Pibiri, Rossano Venturini
arXiv ID
2006.14552
Category
cs.DS: Data Structures & Algorithms
Citations
6
Venue
Software, Practice & Experience
Last Checked
4 months ago
Abstract
Given an integer array A, the prefix-sum problem is to answer sum(i) queries that return the sum of the elements in A[0..i], knowing that the integers in A can be changed. It is a classic problem in data structure design with a wide range of applications in computing from coding to databases. In this work, we propose and compare several and practical solutions to this problem, showing that new trade-offs between the performance of queries and updates can be achieved on modern hardware.
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