Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Unified Perspective on Deep Equilibrium Finding   Extensive-form games provide a versatile framework for modeling interactions
of multiple agents subjected to imperfect observations and stochastic events.
In recent years, two paradigms, policy space response oracles (PSRO) and
counterfactual regret minimization (CFR), showed that extensive-form games may
indeed be solved efficiently. Both of them are capable of leveraging deep
neural networks to tackle the scalability issues inherent to extensive-form
games and we refer to them as deep equilibrium-finding algorithms. Even though
PSRO and CFR share some similarities, they are often regarded as distinct and
the answer to the question of which is superior to the other remains ambiguous.
Instead of answering this question directly, in this work we propose a unified
perspective on deep equilibrium finding that generalizes both PSRO and CFR. Our
four main contributions include: i) a novel response oracle (RO) which computes
Q values as well as reaching probability values and baseline values; ii) two
transform modules -- a pre-transform and a post-transform -- represented by
neural networks transforming the outputs of RO to a latent additive space
(LAS), and then the LAS to action probabilities for execution; iii) two average
oracles -- local average oracle (LAO) and global average oracle (GAO) -- where
LAO operates on LAS and GAO is used for evaluation only; and iv) a novel method
inspired by fictitious play that optimizes the transform modules and average
oracles, and automatically selects the optimal combination of components of the
two frameworks. Experiments on Leduc poker game demonstrate that our approach
can outperform both frameworks.

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The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
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The categories of this paper are: math
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The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin