no code implementations • 28 Jan 2024 • Szabolcs Szentpéteri, Balázs Csanád Csáji
Sign-Perturbed Sum (SPS) is a powerful finite-sample system identification algorithm which can construct confidence regions for the true data generating system with exact coverage probabilities, for any finite sample size.
no code implementations • 28 Jan 2024 • Balázs Csanád Csáji, Bálint Horváth
The paper studies the problem of constructing nonparametric simultaneous confidence bands with nonasymptotic and distribition-free guarantees.
no code implementations • 22 Dec 2023 • Balázs Csanád Csáji, László Györfi, Ambrus Tamás, Harro Walk
Here, we study the problem under much milder assumptions: in addition to the standard Lipschitz and margin conditions, a novel characteristic of the absolutely continuous component is introduced, by which the exact convergence rate of the classification error probability is calculated, both for the binary and for the multi-label cases.
no code implementations • 3 Aug 2023 • Ambrus Tamás, Dániel Ágoston Bálint, Balázs Csanád Csáji
The paper introduces robust independence tests with non-asymptotically guaranteed significance levels for stochastic linear time-invariant systems, assuming that the observed outputs are synchronous, which means that the systems are driven by jointly i. i. d.
no code implementations • 3 Aug 2023 • Ambrus Tamás, Balázs Csanád Csáji
One of the key objects of binary classification is the regression function, i. e., the conditional expectation of the class labels given the inputs.
no code implementations • 12 Feb 2023 • Ambrus Tamás, Balázs Csanád Csáji
In this paper we present a new recursive algorithm to estimate the conditional kernel mean map in a Hilbert space valued $L_2$ space, that is in a Bochner space.
no code implementations • 29 Jan 2023 • Szabolcs Szentpéteri, Balázs Csanád Csáji
The paper suggests a generalization of the Sign-Perturbed Sums (SPS) finite sample system identification method for the identification of closed-loop observable stochastic linear systems in state-space form.
no code implementations • 27 Jun 2022 • Balázs Csanád Csáji, Bálint Horváth
The paper introduces a method to construct confidence bands for bounded, band-limited functions based on a finite sample of input-output pairs.
no code implementations • 8 Mar 2021 • Ambrus Tamás, Balázs Csanád Csáji
In this paper we suggest two statistical hypothesis tests for the regression function of binary classification based on conditional kernel mean embeddings.
no code implementations • 23 Mar 2019 • Balázs Csanád Csáji, Ambrus Tamás
The paper studies binary classification and aims at estimating the underlying regression function which is the conditional expectation of the class labels given the inputs.
no code implementations • 23 Dec 2018 • Balázs Csanád Csáji, Krisztián Balázs Kis
We propose a data-driven approach to quantify the uncertainty of models constructed by kernel methods.
no code implementations • 23 Jul 2018 • Balázs Csanád Csáji
A standard model of (conditional) heteroscedasticity, i. e., the phenomenon that the variance of a process changes over time, is the Generalized AutoRegressive Conditional Heteroskedasticity (GARCH) model, which is especially important for economics and finance.
no code implementations • 20 Jul 2018 • Balázs Csanád Csáji, Zsolt Kemény, Gianfranco Pedone, András Kuti, József Váncza
As urbanization proceeds at an astonishing rate, cities have to continuously improve their solutions that affect the safety, health and overall wellbeing of their residents.
no code implementations • 15 Jan 2014 • Balázs Csanád Csáji, László Monostori
The paper investigates stochastic resource allocation problems with scarce, reusable resources and non-preemtive, time-dependent, interconnected tasks.