119 citations · 285 across the 8 of their papers we have counts for
8 papers
Parameter estimation from an Ornstein-Uhlenbeck process with measurement noise
Simon Carter, Lilianne Mujica-Parodi, Helmut H. Strey
This article aims to investigate the impact of noise on parameter fitting for an Ornstein-Uhlenbeck process, focusing on the effects of multiplicative and thermal noise on the accu…
Achieving Occam's Razor: Deep Learning for Optimal Model Reduction
Botond B Antal, Anthony G Chesebro, Helmut H Strey +2
All fields of science depend on mathematical models. Occam's razor refers to the principle that good models should exclude parameters beyond those minimally required to describe th…
Ground-truth resting-state signal provides data-driven estimation and correction for scanner distortion of fMRI time-series dynamics
Rajat Kumar, Liang Tan, Alan Kriegstein +4
The fMRI community has made great strides in decoupling neuronal activity from other physiologically induced T2* changes, using sensors that provide a ground-truth with respect to…
Making Sense of Computational Psychiatry
LR Mujica-Parodi, HH Strey
In psychiatry, we often speak of constructing "models." Here we try to make sense of what such a claim might mean, starting with the most fundamental question: "What is (and isn't)…
On the Estimation of Parameters from Time Traces originating from an Ornstein-Uhlenbeck Process
Helmut H. Strey
In this article, we develop a Bayesian approach to estimate parameters from time traces that originate from an overdamped Brownian particle in a harmonic potential, or Ornstein-Uhl…
Signal Fluctuation Sensitivity: an improved metric for optimizing detection of resting-state fMRI networks
D. J. DeDora, S. Nedic, P. Katti +6
Task-free connectivity analyses have emerged as a powerful tool in functional neuroimaging. Because the cross-correlations that underlie connectivity measures are sensitive to dist…
Equation of state for polymer liquid crystals: theory and experiment
H. H. Strey, V. A. Parsegian, R. Podgornik
The first part of this paper develops a theory for the free energy of lyotropic polymer nematic liquid crystals. We use a continuum model with macroscopic elastic moduli for a poly…
Bond Orientational Order, Molecular Motion and Free Energy of High Density DNA Mesophases
R. Podgornik, H. H. Strey, K. Gawrisch +3
By equilibrating condensed DNA arrays against reservoirs of known osmotic stress and examining them with several structural probes, it has been possible to achieve a detailed therm…