51 citations · 251 across the 19 of their papers we have counts for
19 papers
Multifractal Signatures of Ageing and Dementia Development: A Multifractal Space-Filling Curve Analysis
Marta Lotka, Jacek Grela, Zbigniew Drogosz +2
Multifractality is an effective formalism for quantifying the nonlinear, scale-free properties of complex data. In this study, we propose a novel and efficient methodology, termed…
Using Space-Filling Curves and Fractals to Reveal Spatial and Temporal Patterns in Neuroimaging Data
Jacek Grela, Zbigniew Drogosz, Jakub Janarek +6
We present a novel method, Fractal Space-Curve Analysis (FSCA), which combines Space-Filling Curve (SFC) mapping for dimensionality reduction with fractal Detrended Fluctuation Ana…
Investigating structural and functional aspects of the brain's criticality in stroke
Jakub Janarek, Zbigniew Drogosz, Jacek Grela +2
This paper addresses the question of the brain's critical dynamics after an injury such as a stroke. It is hypothesized that the healthy brain operates near a phase transition (cri…
SLOVA: Uncertainty Estimation Using Single Label One-Vs-All Classifier
Bartosz Wójcik, Jacek Grela, Marek Śmieja +2
Deep neural networks present impressive performance, yet they cannot reliably estimate their predictive confidence, limiting their applicability in high-risk domains. We show that…
Glass--like transition described by toppling of stability hierarchy
Jacek Grela, Boris A. Khoruzhenko
Building on the work of Fyodorov (2004) and Fyodorov and Nadal (2012) we examine the critical behaviour of population of saddles with fixed instability index in high dimensiona…
Non-intersecting Brownian bridges in the flat-to-flat geometry
Jacek Grela, Satya N. Majumdar, Gregory Schehr
We study vicious Brownian bridges propagating from an initial configuration at time to a final configuration …