192views Education» more  CORR 2011»
12 years 9 months ago
Improved Approximation Guarantees for Lower-Bounded Facility Location
d Abstract) Sara Ahmadian∗ Chaitanya Swamy∗ We consider the lower-bounded facility location (LBFL) problem (also sometimes called load-balanced facility location), which is a ...
Sara Ahmadian, Chaitanya Swamy
13 years 9 days ago
A Two Step Solution Procedure to a Fuzzy Medical Waste Disposal Facility Location Problem
This paper handles the medical waste disposal facility location problem in Istanbul by using fuzzy TOPSIS (FETOPSIS) to select the adequate place between some candidate points that...
H. Ziya Ulukan, Yesim Kop
102views more  MICS 2010»
13 years 28 days ago
On Conditional Covering Problem
The conditional covering problem (CCP) aims to locate facilities on a graph, where the vertex set represents both the demand points and the potential facility locations. The proble...
Balasubramanian Sivan, S. Harini, C. Pandu Rangan
102views more  JCO 1998»
13 years 2 months ago
Facility Location with Dynamic Distance Functions
Facility location problems have always been studied with the assumption that the edge lengths in the network are static and do not change over time. The underlyingnetwork could be ...
Randeep Bhatia, Sudipto Guha, Samir Khuller, Yoram...
72views more  EOR 2007»
13 years 2 months ago
Placing a finite size facility with a center objective on a rectangular plane with barriers
This paper addresses the finite size 1-center placement problem on a rectangular plane in the presence of barriers. Barriers are regions in which both facility location and trave...
Avijit Sarkar, Rajan Batta, Rakesh Nagi
120views more  DAM 2010»
13 years 2 months ago
A new approximation algorithm for the multilevel facility location problem
In this paper we propose a new integer programming formulation for the multilevel facility location problem and a novel 3-approximation algorithm based on LP rounding. The linear ...
Adriana Felicia Gabor, Jan-Kees C. W. van Ommeren
122views Education» more  CORR 2010»
13 years 2 months ago
Facility Location with Client Latencies: Linear-Programming based Techniques for Minimum-Latency Problems
We introduce a problem that is a common generalization of the uncapacitated facility location (UFL) and minimum latency (ML) problems, where facilities not only need to be opened ...
Deeparnab Chakrabarty, Chaitanya Swamy
13 years 3 months ago
The Gaussian Centre of a Set of Mobile Points
Abstract Steph Durocher∗ and David Kirkpatrick† Department of Computer Science, University of British Columbia Vancouver BC, Canada Given a set of client positions as input, f...
Stephane Durocher, David G. Kirkpatrick
13 years 7 months ago
Hierarchical Placement and Network Design Problems
In this paper, we give the first constant-approximations for a number of layered network design problems. We begin by modeling hierarchical caching, where caches are placed in la...
Sudipto Guha, Adam Meyerson, Kamesh Munagala
13 years 8 months ago
A Local Facility Location Algorithm for Sensor Networks
In this paper we address a well-known facility location problem (FLP) in a sensor network environment. The problem deals with finding the optimal way to provide service to a (poss...
Denis Krivitski, Assaf Schuster, Ran Wolff