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View all- Zhao YLiao CLin TYin JDo NHsu CVenkatasubramanian N(2015)SmartSourceProceedings of the 2015 16th IEEE International Conference on Mobile Data Management - Volume 0110.1109/MDM.2015.73(145-156)Online publication date: 15-Jun-2015
In this article we present approximation algorithms for the Arc Orienteering Problem (AOP). We propose a polylogarithmic approximation algorithm in directed graphs, while in undirected graphs we give a ( 6 + + o ( 1 ) ) and a ( 4 + ) -approximation ...
In the weighted set-cover problem we are given a set of elements $E=\{ e_1,e_2, \ldots ,e_n \}$ and a collection $\cal F$ of subsets of $E$, where each $S \in \cal F$ has a positive cost $c_{S}$. The problem is to compute a subcollection $SOL$ such that ...
We study the storage allocation problem (SAP) which is a variant of the unsplittable flow problem on paths (UFPP). A SAP instance consists of a path $$P = (V,E)$$P=(V,E) and a set J of tasks. Each edge $$e \in E$$e E has a capacity $$c_e$$ce and each ...
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