activity
20062026
most citedViolation of detailed balance accelerates relaxation

57 citations · 101 across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.stat-mech2026

Inferring Microscopic Explanatory Structures from Observational Constraints via Large Deviations

Akihisa Ichiki

We study how macroscopic observational constraints restrict admissible microscopic explanatory structures when no intrinsic order or dynamics is assumed a priori. Starting from an…

cond-mat.stat-mech2026

Relativity of Observation: Operational Intensive Variables in Nonequilibrium Thermodynamics

Akihisa Ichiki

We formulate nonequilibrium thermodynamics in which intensive variables acquire operational meaning through measurement protocols consistent with local reciprocity. Using physical…

cs.LG2025

A method for classification of data with uncertainty using hypothesis testing

Shoma Yokura, Akihisa Ichiki

Binary classification is a task that involves the classification of data into one of two distinct classes. It is widely utilized in various fields. However, conventional classifier…

stat.ML2023

Performance-guaranteed regularization in maximum likelihood method: Gauge symmetry in Kullback -- Leibler divergence

Akihisa Ichiki

The maximum likelihood method is the best-known method for estimating the probabilities behind the data. However, the conventional method obtains the probability model closest to t…

cond-mat.stat-mech2021★ 1 cited

Stochastic dynamics without detailed balance condition connecting simple gradient method and Hamiltonian Monte Carlo

Akihisa Ichiki, Masayuki Ohzeki

Sampling occupies an important position in theories of various scientific fields, and Markov chain Monte Carlo (MCMC) provides the most common technique of sampling. In the progres…

quant-ph2021

Upper bound inequality for calculation time in simulated annealing analogous to adiabatic theorem in quantum systems

Akihisa Ichiki, Masayuki Ohzeki

It has been recently reported that classical systems have speed limit for state evolution, although such a concept of speed limit had been considered to be unique to quantum system…