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Edward Lockhart

6 accepted papers

2022

Approximate Exploitability: Learning a Best Response

IJCAI 2022poster

Researchers have shown that neural networks are vulnerable to adversarial examples and subtle environment changes. The resulting errors can look like blunders to humans, eroding trust in these agents. In prior games research, agent evaluation often focused on the in-practice game outcomes. Such eva…

Cited by 0SourcePDFScholar
2021

Solving Common-Payoff Games with Approximate Policy Iteration

AAAI 2021technical

For artificially intelligent learning systems to have widespread applicability in real-world settings, it is important that they be able to operate decentrally. Unfortunately, decentralized control is difficult---computing even an epsilon-optimal joint policy is a NEXP complete problem. Nevertheless…

2020

Fast computation of Nash Equilibria in Imperfect Information Games

ICML 2020poster

We introduce and analyze a class of algorithms, called Mirror Ascent against an Improved Opponent (MAIO), for computing Nash equilibria in two-player zero-sum games, both in normal form and in sequential form with imperfect information. These algorithms update the policy of each player with a mirror…

Cited by 12SourcePDFScholar
2019

Deep reinforcement learning with relational inductive biases

ICLR 2019poster

We introduce an approach for augmenting model-free deep reinforcement learning agents with a mechanism for relational reasoning over structured representations, which improves performance, learning efficiency, generalization, and interpretability. Our architecture encodes an image as a set of vector…

Cited by 265SourcePDFScholar
2018

Efficient Neural Audio Synthesis

ICML 2018oral

Sequential models achieve state-of-the-art results in audio, visual and textual domains with respect to both estimating the data distribution and generating desired samples. Efficient sampling for this class of models at the cost of little to no loss in quality has however remained an elusive proble…

Cited by 1097SourcePDFScholar
2018

Parallel WaveNet: Fast High-Fidelity Speech Synthesis

ICML 2018oral

The recently-developed WaveNet architecture is the current state of the art in realistic speech synthesis, consistently rated as more natural sounding for many different languages than any previous system. However, because WaveNet relies on sequential generation of one audio sample at a time, it is…

Cited by 1053SourcePDFScholar