activity
20232026
most citedGradient sensing limit of a cell when controlling the elongating direction

7 citations · 11 across the 11 of their papers we have counts for

collaborators

11 papers

math.OC2026

Accelerating Evolutionary Strategy via Rao-Blackwellizing Realization of Uncertain Input

So Nakashima, Tetsuya J. Kobayashi

We investigate Optimization under Input Uncertainty (OIU), in which the input to the objective function, rather than the objective function itself, is subject to uncertainty. OIU a…

q-bio.MN2026

Convex Analysis of Relaxation Dynamics in Chemical Reaction Networks and Generalized Gradient Flows

Keisuke Sugie, Dimitri Loutchko, Tetsuya J. Kobayashi

We obtain bounds on the Kullback--Leibler divergence to equilibrium for mass-action chemical reaction networks (CRNs) with equilibrium. The associated trajectory-dependent bounds a…

cond-mat.stat-mech2025

Information geometry of perturbed gradient flow systems on hypergraphs: A perspective towards nonequilibrium physics

Dimitri Loutchko, Keisuke Sugie, Tetsuya J Kobayashi

This article serves to concisely review the link between gradient flow systems on hypergraphs and information geometry which has been established within the last five years. Gradie…

q-bio.MN2025

Information geometry of chemical reaction networks: Cramer-Rao bound and absolute sensitivity revisited

Dimitri Loutchko, Yuki Sughiyama, Tetsuya J. Kobayashi

Information geometry is based on classical Legendre duality but allows to incorporate additional structure such as algebraic constraints and Bregman divergence functions. It is nat…

cs.LG2024★ 2 cited

Ancestral Reinforcement Learning: Unifying Zeroth-Order Optimization and Genetic Algorithms for Reinforcement Learning

So Nakashima, Tetsuya J. Kobayashi

Reinforcement Learning (RL) offers a fundamental framework for discovering optimal action strategies through interactions within unknown environments. Recent advancement have shown…

q-bio.CB2024

Optimality theory of stigmergic collective information processing by chemotactic cells

Masaki Kato, Tetsuya J. Kobayashi

Collective information processing is fundamental in various biological systems, where the cooperation of multiple cells results in complex functions beyond individual capabilities.…

q-bio.CB2024★ 7 cited

Gradient sensing limit of a cell when controlling the elongating direction

Kento Nakamura, Tetsuya J. Kobayashi

Eukaryotic cells perform chemotaxis by determining the direction of chemical gradients based on stochastic sensing of concentrations at the cell surface. To examine the efficiency…

q-bio.MN2024

Transitions and Thermodynamics on Species Graphs of Chemical Reaction Networks

Keisuke Sugie, Dimitri Loutchko, Tetsuya J. Kobayashi

Chemical reaction networks (CRNs) exhibit complex dynamics governed by their underlying network structure. In this paper, we propose a novel approach to study the dynamics of CRNs…

q-bio.MN2024

Cramer-Rao bound and absolute sensitivity in chemical reaction networks

Dimitri Loutchko, Yuki Sughiyama, Tetsuya J. Kobayashi

Chemical reaction networks (CRN) comprise an important class of models to understand biological functions such as cellular information processing, the robustness and control of met…

cond-mat.stat-mech2023

Thermodynamic and Stoichiometric Laws Ruling the Fates of Growing Systems

Atsushi Kamimura, Yuki Sughiyama, Tetsuya J. Kobayashi

We delve into growing open chemical reaction systems (CRSs) characterized by autocatalytic reactions within a variable volume, which changes in response to these reactions. Underst…

physics.chem-ph2023★ 2 cited

Information geometric bound on general chemical reaction networks

Tsuyoshi Mizohata, Tetsuya J. Kobayashi, Louis-S. Bouchard +1

We investigate the dynamics of chemical reaction networks (CRNs) with the goal of deriving an upper bound on their reaction rates. This task is challenging due to the nonlinear nat…