کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6874704 1441189 2018 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Computing marginals using MapReduce
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Computing marginals using MapReduce
چکیده انگلیسی
We consider the problem of computing data-cube marginals by a single round of MapReduce, focusing on the relationship between the reducer size and the replication rate. Initially, we simplify the problem by making the extent of each dimension the same. Several recursive constructions meet or come close to the minimum possible replication rate for a given reducer size. These ideas extend in two directions. We relax the assumption that the extents are all equal, and we consider how to compute marginals from lower-order marginals rather than from the raw data cube.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computer and System Sciences - Volume 94, June 2018, Pages 98-117
نویسندگان
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