Search Results for author: Joshua A. Grochow

Found 5 papers, 2 papers with code

An Improved Algorithm for Coarse-Graining Cellular Automata

no code implementations22 Dec 2020 Yerim Song, Joshua A. Grochow

Here we introduce a new, more efficient algorithm for finding coarse-grainings between any two given CA that allows us to systematically explore all elementary CA with supercell sizes up to $N=7$, and to explore individual examples of even larger supercell size.

Cellular Automata and Lattice Gases Statistical Mechanics Data Structures and Algorithms Pattern Formation and Solitons 37B15, 68Q80, 68W05 F.2.2; G.4

Comparing Information-Theoretic Measures of Complexity in Boltzmann Machines

no code implementations29 Jun 2017 Maxinder S. Kanwal, Joshua A. Grochow, Nihat Ay

In the past three decades, many theoretical measures of complexity have been proposed to help understand complex systems.

Dynamics of beneficial epidemics

1 code implementation7 Apr 2016 Andrew Berdahl, Christa Brelsford, Caterina De Bacco, Marion Dumas, Vanessa Ferdinand, Joshua A. Grochow, Laurent Hébert-Dufresne, Yoav Kallus, Christopher P. Kempes, Artemy Kolchinsky, Daniel B. Larremore, Eric Libby, Eleanor A. Power, Caitlin A. Stern, Brendan Tracey

Third, in the context of dynamic social networks, we find that preferences for increased global infection accelerate spread and produce superexponential fixation, but preferences for local assortativity halt epidemics by disconnecting the infected from the susceptible.

Physics and Society Multiagent Systems Social and Information Networks Adaptation and Self-Organizing Systems Populations and Evolution

Multi-scale structure and topological anomaly detection via a new network statistic: The onion decomposition

1 code implementation29 Oct 2015 Laurent Hébert-Dufresne, Joshua A. Grochow, Antoine Allard

The onion spectrum is exactly as easy to compute as the k-cores: It is based on the stages at which each vertex gets removed from a graph in the standard algorithm for computing the k-cores.

Physics and Society Disordered Systems and Neural Networks Discrete Mathematics Social and Information Networks Combinatorics

Optimal high-level descriptions of dynamical systems

no code implementations25 Sep 2014 David H. Wolpert, Joshua A. Grochow, Eric Libby, Simon DeDeo

These include SSC as a measure of the complexity of a dynamical system, and as a way to quantify information flow between the scales of a system.

Vocal Bursts Intensity Prediction

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