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Picture for Alistair Letcher

Polymatrix Competitive Gradient Descent


Nov 16, 2021
Jeffrey Ma, Alistair Letcher, Florian Schäfer, Yuanyuan Shi, Anima Anandkumar


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Ridge Rider: Finding Diverse Solutions by Following Eigenvectors of the Hessian


Nov 12, 2020
Jack Parker-Holder, Luke Metz, Cinjon Resnick, Hengyuan Hu, Adam Lerer, Alistair Letcher, Alex Peysakhovich, Aldo Pacchiano, Jakob Foerster

* Camera-ready version, NeurIPS 2020 

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On the Impossibility of Global Convergence in Multi-Loss Optimization


May 26, 2020
Alistair Letcher

* 21 pages, 2 figures 

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Differentiable Game Mechanics


May 13, 2019
Alistair Letcher, David Balduzzi, Sebastien Racaniere, James Martens, Jakob Foerster, Karl Tuyls, Thore Graepel

* Journal of Machine Learning Research (JMLR), v20 (84) 1-40, 2019 
* JMLR 2019, journal version of arXiv:1802.05642 

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Stable Opponent Shaping in Differentiable Games


Nov 20, 2018
Alistair Letcher, Jakob Foerster, David Balduzzi, Tim Rocktäschel, Shimon Whiteson

* 20 pages, 7 figures 

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Automatic Conflict Detection in Police Body-Worn Audio


Feb 14, 2018
Alistair Letcher, Jelena Trišović, Collin Cademartori, Xi Chen, Jason Xu

* 5 pages, 2 figures, 1 table 

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