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Sdp gaps and ugc hardness for multiway cut, 0-extension, and metric labeling

Published: 17 May 2008 Publication History

Abstract

The connection between integrality gaps and computational hardness of discrete optimization problems is an intriguing question. In recent years, this connection has prominently figured in several tight UGC-based hardness results. We show in this paper a direct way of turning integrality gaps into hardness results for several fundamental classification problems. Specifically, we convert linear programming integrality gaps for the Multiway Cut, 0-Extension, and and Metric Labeling problems into UGC-based hardness results. Qualitatively, our result suggests that if the unique games conjecture is true then a linear relaxation of the latter problems studied in several papers (so-called earthmover linear program) yields the best possible approximation. Taking this a step further, we also obtain integrality gaps for a semi-definite programming relaxation matching the integrality gaps of the earthmover linear program. Prior to this work, there was an intriguing possibility of obtaining better approximation factors for labeling problems via semi-definite programming.

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Cited By

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  • (2023)Nearly tight bounds for differentially private multiway cutProceedings of the 37th International Conference on Neural Information Processing Systems10.5555/3666122.3667206(24947-24965)Online publication date: 10-Dec-2023
  • (2023)On Lifting Integrality Gaps to SSEH Hardness for Globally Constrained CSPs2023 IEEE 64th Annual Symposium on Foundations of Computer Science (FOCS)10.1109/FOCS57990.2023.00009(26-36)Online publication date: 6-Nov-2023
  • (2022)$$\ell _p$$-Norm Multiway CutAlgorithmica10.1007/s00453-022-00983-384:9(2667-2701)Online publication date: 23-May-2022
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  1. Sdp gaps and ugc hardness for multiway cut, 0-extension, and metric labeling

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    cover image ACM Conferences
    STOC '08: Proceedings of the fortieth annual ACM symposium on Theory of computing
    May 2008
    712 pages
    ISBN:9781605580470
    DOI:10.1145/1374376
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 17 May 2008

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    Author Tags

    1. integrality gaps
    2. linear and semidefinite programming
    3. metric labelling
    4. multiway cut
    5. unique games conjecture

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    May 17 - 20, 2008
    British Columbia, Victoria, Canada

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    STOC '08 Paper Acceptance Rate 80 of 325 submissions, 25%;
    Overall Acceptance Rate 1,469 of 4,586 submissions, 32%

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    Cited By

    View all
    • (2023)Nearly tight bounds for differentially private multiway cutProceedings of the 37th International Conference on Neural Information Processing Systems10.5555/3666122.3667206(24947-24965)Online publication date: 10-Dec-2023
    • (2023)On Lifting Integrality Gaps to SSEH Hardness for Globally Constrained CSPs2023 IEEE 64th Annual Symposium on Foundations of Computer Science (FOCS)10.1109/FOCS57990.2023.00009(26-36)Online publication date: 6-Nov-2023
    • (2022)$$\ell _p$$-Norm Multiway CutAlgorithmica10.1007/s00453-022-00983-384:9(2667-2701)Online publication date: 23-May-2022
    • (2021)The metric relaxation for 0-extension admits an Ω(logk) gapProceedings of the 53rd Annual ACM SIGACT Symposium on Theory of Computing10.1145/3406325.3451071(1601-1614)Online publication date: 15-Jun-2021
    • (2021)Stealthy DGoS Attack: DeGrading of Service Under the Watch of Network TomographyIEEE/ACM Transactions on Networking10.1109/TNET.2021.305823029:3(1294-1307)Online publication date: Jun-2021
    • (2021)On the (near) optimality of extended formulations for multi-way cut in social networksOptimization and Engineering10.1007/s11081-021-09648-6Online publication date: 6-Jul-2021
    • (2020)Isolation branching: a branch and bound algorithm for the k-terminal cut problemJournal of Combinatorial Optimization10.1007/s10878-020-00534-y44:3(1659-1679)Online publication date: 7-Feb-2020
    • (2020)Improving the integrality gap for multiway cutMathematical Programming10.1007/s10107-020-01485-2Online publication date: 6-Mar-2020
    • (2020)Geometric Multicut: Shortest Fences for Separating Groups of Objects in the PlaneDiscrete & Computational Geometry10.1007/s00454-020-00232-w64:3(575-607)Online publication date: 1-Oct-2020
    • (2019)Linear programming-based submodular extensions for marginal estimationComputer Vision and Image Understanding10.1016/j.cviu.2019.102824(102824)Online publication date: Sep-2019
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