Search Results for author: Alexander Strang

Found 5 papers, 1 papers with code

The Almost Sure Evolution of Hierarchy Among Similar Competitors

no code implementations8 Feb 2024 Christopher Cebra, Alexander Strang

Second, we analyze hierarchy formation in populations subject to the continuous replicator dynamic with diffusive exploration, linking population dynamics to emergent structure.

Machine learning in and out of equilibrium

1 code implementation6 Jun 2023 Shishir Adhikari, Alkan Kabakçıoğlu, Alexander Strang, Deniz Yuret, Michael Hinczewski

In an example system where the posterior is exactly known, this SGWORLD algorithm outperforms SGLD, converging to the posterior orders of magnitude faster as a function of the learning rate.

Navigate Protein Folding

Principal Trade-off Analysis

no code implementations9 Jun 2022 Alexander Strang, David SeWell, Alexander Kim, Kevin Alcedo, David Rosenbluth

We demonstrate the validity of PTA on a quartet of games (Kuhn poker, RPS+2, Blotto, and Pokemon).

Similarity Suppresses Cyclicity: Why Similar Competitors Form Hierarchies

no code implementations16 May 2022 Christopher Cebra, Alexander Strang

We quantify the rate of convergence to transitivity given the similarity of the competitors and the smoothness of the performance function.

A Variational Inference Approach to Inverse Problems with Gamma Hyperpriors

no code implementations26 Nov 2021 Shiv Agrawal, Hwanwoo Kim, Daniel Sanz-Alonso, Alexander Strang

Hierarchical models with gamma hyperpriors provide a flexible, sparse-promoting framework to bridge $L^1$ and $L^2$ regularizations in Bayesian formulations to inverse problems.

Model Selection Time Series +3

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