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Candidate hard unique game

Published: 19 June 2016 Publication History
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  • Abstract

    We propose a candidate reduction for ruling out polynomial-time algorithms for unique games, either under plausible complexity assumptions, or unconditionally for Lasserre semi-definite programs with a constant number of rounds. We analyze the completeness and Lasserre solution of our construction, and provide a soundness analysis in a certain setting of interest. Addressing general settings is tightly connected to a question on Gaussian isoperimetry. Our construction is based on our previous work on the complexity of approximately solving a system of linear equations over reals, which we suggested as an avenue towards a (positive) resolution of the Unique Games Conjecture. The construction employs a new encoding scheme that we call the real code. The real code has two useful properties: like the long code, it has a unique local test, and like the Hadamard code, it has the so-called sub-code covering property.

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    Cited By

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    • (2019)A periodic isoperimetric problem related to the unique games conjectureRandom Structures & Algorithms10.1002/rsa.2087756:1(154-168)Online publication date: 24-Jul-2019
    • (2018)Noise stability and correlation with half spacesElectronic Journal of Probability10.1214/18-EJP14523:noneOnline publication date: 1-Jan-2018
    • (2018)Towards a proof of the 2-to-1 games conjecture?Proceedings of the 50th Annual ACM SIGACT Symposium on Theory of Computing10.1145/3188745.3188804(376-389)Online publication date: 20-Jun-2018
    • Show More Cited By
    1. Candidate hard unique game

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      cover image ACM Conferences
      STOC '16: Proceedings of the forty-eighth annual ACM symposium on Theory of Computing
      June 2016
      1141 pages
      ISBN:9781450341325
      DOI:10.1145/2897518
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      Publication History

      Published: 19 June 2016

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      Author Tags

      1. Lasserre hierarchy
      2. Unique Games Conjecture
      3. approximate real linear equations
      4. direct product
      5. integrality gap
      6. real code
      7. semidefinite programming
      8. two prover games

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      STOC '16: Symposium on Theory of Computing
      June 19 - 21, 2016
      MA, Cambridge, USA

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      Cited By

      View all
      • (2019)A periodic isoperimetric problem related to the unique games conjectureRandom Structures & Algorithms10.1002/rsa.2087756:1(154-168)Online publication date: 24-Jul-2019
      • (2018)Noise stability and correlation with half spacesElectronic Journal of Probability10.1214/18-EJP14523:noneOnline publication date: 1-Jan-2018
      • (2018)Towards a proof of the 2-to-1 games conjecture?Proceedings of the 50th Annual ACM SIGACT Symposium on Theory of Computing10.1145/3188745.3188804(376-389)Online publication date: 20-Jun-2018
      • (2018)Pseudorandom Sets in Grassmann Graph Have Near-Perfect Expansion2018 IEEE 59th Annual Symposium on Foundations of Computer Science (FOCS)10.1109/FOCS.2018.00062(592-601)Online publication date: Oct-2018
      • (2017)Sum of squares lower bounds for refuting any CSPProceedings of the 49th Annual ACM SIGACT Symposium on Theory of Computing10.1145/3055399.3055485(132-145)Online publication date: 19-Jun-2017

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