Fisher information of correlated stochastic processes

M Radaelli, GT Landi, K Modi… - New Journal of Physics, 2023 - iopscience.iop.org
Many real-world tasks include some kind of parameter estimation, ie the determination of a
parameter encoded in a probability distribution. Often, such probability distributions arise …

Computational Mechanics of Input–Output Processes: Structured Transformations and the -Transducer

N Barnett, JP Crutchfield - Journal of Statistical Physics, 2015 - Springer
Computational mechanics quantifies structure in a stochastic process via its causal states,
leading to the process's minimal, optimal predictor—the ϵ-machine ϵ-machine. We extend …

The origins of computational mechanics: A brief intellectual history and several clarifications

JP Crutchfield - arXiv preprint arXiv:1710.06832, 2017 - arxiv.org
The principle goal of computational mechanics is to define pattern and structure so that the
organization of complex systems can be detected and quantified. Computational mechanics …

Occam's quantum strop: Synchronizing and compressing classical cryptic processes via a quantum channel

JR Mahoney, C Aghamohammadi, JP Crutchfield - Scientific reports, 2016 - nature.com
A stochastic process' statistical complexity stands out as a fundamental property: the
minimum information required to synchronize one process generator to another. How much …

Correlation-powered information engines and the thermodynamics of self-correction

AB Boyd, D Mandal, JP Crutchfield - Physical Review E, 2017 - APS
Information engines can use structured environments as a resource to generate work by
randomizing ordered inputs and leveraging the increased Shannon entropy to transfer …

[HTML][HTML] Divergent predictive states: The statistical complexity dimension of stationary, ergodic hidden Markov processes

AM Jurgens, JP Crutchfield - Chaos: An Interdisciplinary Journal of …, 2021 - pubs.aip.org
Even simply defined, finite-state generators produce stochastic processes that require
tracking an uncountable infinity of probabilistic features for optimal prediction. For processes …

Minimized state complexity of quantum-encoded cryptic processes

PM Riechers, JR Mahoney, C Aghamohammadi… - Physical Review A, 2016 - APS
The predictive information required for proper trajectory sampling of a stochastic process
can be more efficiently transmitted via a quantum channel than a classical one. This recent …

Predictive rate-distortion for infinite-order Markov processes

SE Marzen, JP Crutchfield - Journal of Statistical Physics, 2016 - Springer
Predictive rate-distortion analysis suffers from the curse of dimensionality: clustering
arbitrarily long pasts to retain information about arbitrarily long futures requires resources …

Leveraging information storage to select forecast-optimal parameters for delay-coordinate reconstructions

J Garland, RG James, E Bradley - Physical Review E, 2016 - APS
Delay-coordinate reconstruction is a proven modeling strategy for building effective
forecasts of nonlinear time series. The first step in this process is the estimation of good …

[HTML][HTML] The ambiguity of simplicity in quantum and classical simulation

C Aghamohammadi, JR Mahoney, JP Crutchfield - Physics letters A, 2017 - Elsevier
A system's perceived simplicity depends on whether it is represented classically or
quantally. This is not so surprising, as classical and quantum physics are descriptive …