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Relaxing Common Belief for Social Networks

Talkat ITCS 2021 · 2021-01-06..01-08
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Paper defines common P_mu belief (a factional-belief relaxations of common belief) and proves it undergirds partial approximate coordination in threshold revolt games. Exact revolt decision is NP‑hard, but the promised revolt problem admits a polynomial‑time algorithm when maximum degree is bounded and delta(N)→0. A surprising corollary is a degree-sequence-only algorithm that needs no edge list. Methods combine equilibrium characterization, reductions, and simulations that map how equilibrium revolt sizes vary with network and model parameters.

AI-written summary · about

  1. 0:00Intro
  2. 1:35Network Revolt Games: Example
  3. 5:58Limitations of Previous Work
  4. 10:20Our Network Revolt Game Model: The Network
  5. 10:33Our Model: The Agents
  6. 12:33Our Model: The Solution Concept
  7. 13:03Motivating Example: Model
  8. 13:52Motivating Example: Proposition
  9. 14:23Motivating Example: Intuition
  10. 16:04An Algorithmic Perspective: The Fundamental Case
  11. 17:33A Formal Problem: REVOLT
  12. 18:14A Relaxed Problem: PROMISE REVOLT
  13. 19:13Illustrating PROMISE REVOLT
  14. 20:09Relating REVOLT, PROMISE REVOLT to Factional Be
  15. 20:36Main Technical Result
  16. 21:17Surprising Corollary to our Analysis
  17. 21:38Extensions of the Fundamental Case
  18. 22:24Future Work and Open Questions
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