35 citations · 43 across the 7 of their papers we have counts for
8 papers
Detecting Overfitting via Adversarial Examples
Roman Werpachowski, András György, Csaba Szepesvári
The repeated community-wide reuse of test sets in popular benchmark problems raises doubts about the credibility of reported test-error rates. Verifying whether a learned model is…
Microsimulations of demographic changes in England and Wales under different EU referendum scenarios
Agnieszka Werpachowska, Roman Werpachowski
We perform stochastic microsimulations of the dynamics of England and Wales population after the British referendum on EU membership, considering different possible outcomes. Emplo…
Cross-sectional Markov model for trend analysis of observed discrete distributions of population characteristics
Agnieszka Werpachowska, Roman Werpachowski
We present a stochastic model of population dynamics exploiting cross-sectional data in trend analysis and forecasts for groups and cohorts of a population. While sharing the conve…
On the solutions of generalized discrete Poisson equation
Roman Werpachowski
The set of common numerical and analytical problems is introduced in the form of the generalized multidimensional discrete Poisson equation. It is shown that its solutions with squ…
On the approximation of real powers of sparse, infinite, bounded and Hermitian matrices
Roman Werpachowski
We describe a way to approximate the matrix elements of a real power of a positive (for ) or non-negative (for ), infinite, bounded, sparse and Hermiti…
A simple renormalization group approximation of the groundstate properties of interacting bosonic systems
Roman Werpachowski, Jerzy Kijowski
We present a new, simple renormalization group method of investigating groundstate properties of interacting bosonic systems. Our method reduces the number of particles in a system…