Privacy-Preserving Tabu Search for Distributed Graph Coloring

Combinatorial optimization is a fundamental problem found in many fields. In many real life situations, the constraints and the objective function forming the optimization problem are naturally distributed amongst different sites in some fashion. The typical approach is to collect all of this inform...

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Bibliographic Details
Published in:2011 IEEE third International Conference on Privacy, Security, Risk and Trust and 2011 IEEE Third International Conference on Social Computing : 9-11 October 2011 pp. 951 - 958
Main Authors: Yuan Hong, Vaidya, J., Haibing Lu, Shafiq, B.
Format: Conference Proceeding
Language:English
Published: IEEE 01.10.2011
Subjects:
Color
Combinatorial Optimization
Cryptography
Lead
Optimization
Privacy
Protocols
Search problems
Tabu Search
Vectors
ISBN:9781457719318, 1457719312
Online Access:Get full text
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Summary:Combinatorial optimization is a fundamental problem found in many fields. In many real life situations, the constraints and the objective function forming the optimization problem are naturally distributed amongst different sites in some fashion. The typical approach is to collect all of this information together and centrally solve the problem. However, this requires all parties to completely share their information, which may lead to serious privacy issues. Privacy-preserving techniques need to be developed to enable distributed optimization with limited information disclosure. A further complicating factor is that combinatorial optimization problems are typically NP-hard, requiring approximation algorithms or heuristics to provide a practical solution. In this paper, we focus on a very well known hard problem - the distributed graph coloring problem, which has been utilized to model many practical problems in scheduling and resource allocation. We propose an efficient protocol that securely solves this problem based on the tabu search metaheuristic. Specifically, our solution uses a distributed local search algorithm to find a good solution. We analyze the security of our approach and experimentally demonstrate the effectiveness of our approach.
ISBN:9781457719318
1457719312
DOI:10.1109/PASSAT/SocialCom.2011.116