کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
418040 681602 2015 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
About the minimum mean cycle-canceling algorithm
ترجمه فارسی عنوان
درباره حداقل الگوریتم لغو میانگین چرخه
کلمات کلیدی
مشکل شبکه جریان، شبکه باقی مانده، تجزیه جریان، حداقل چرخه متوسط، تجزیه و تحلیل پیچیدگی، الگوریتم به شدت چندجمله ای
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
چکیده انگلیسی

This paper focuses on the resolution of the capacitated minimum cost flow problem on a network comprising  nn nodes and  mm arcs. We present a method that counts imperviousness to degeneracy among its strengths, namely the minimum mean cycle-canceling algorithm (MMCC). At each iteration, primal feasibility is maintained and the objective function strictly improves. The goal is to write a uniform and hopefully more accessible paper which centralizes the ideas presented in the seminal work of Goldberg and Tarjan (1989) as well as the additional paper of Radzik and Goldberg (1994) where the complexity analysis is refined. Important properties are proven using linear programming rather than constructive arguments.We also retrieve Cancel-and-Tighten from the former paper, where each so-called phase which can be seen as a group of iterations requires O(mlogn)O(mlogn) time. MMCC turns out to be a strongly polynomial algorithm which runs in  O(mn)O(mn) phases, hence in  O(m2nlogn)O(m2nlogn) time. This new complexity result is obtained with a combined analysis of the results in both papers along with original contributions which allows us to enlist Cancel-and-Tighten as an acceleration strategy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Discrete Applied Mathematics - Volume 196, 11 December 2015, Pages 115–134
نویسندگان
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