activity
20012022
most citedStability of exact solutions of the defocusing nonlinear Schrodinger equation with periodic potential in two dimensions

35 citations · 54 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2022

Orders of chaoticity of unitaries

Adrian Ortega, Andrew B. Frigyik, Mátyás Koniorczyk

We introduce the concept of K-th order chaoticity of unitaries, and analyze it for the case of two-level quantum systems. This property is relevant in a certain quantum random numb…

math-ph2016

On the limit relation for the quantum relative entropy

J. Z. Bernád, A. B. Frigyik

Recently, Diósi et al. (Int. J. Quant. Inf. 4, 99 (2006)) introduced a simple, yet very interesting model for reservoirs, in order to study the relationship between thermodynamic e…

stat.ML2011★ 12 cited

Multi-Task Averaging

Sergey Feldman, Bela A. Frigyik, Maya R. Gupta

We present a multi-task learning approach to jointly estimate the means of multiple independent data sets. The proposed multi-task averaging (MTA) algorithm results in a convex com…

stat.ML2011

Bounds on the Bayes Error Given Moments

Bela A. Frigyik, Maya R. Gupta

We show how to compute lower bounds for the supremum Bayes error if the class-conditional distributions must satisfy moment constraints, where the supremum is with respect to the u…

math.DG2007★ 5 cited

The X-ray transform for a generic family of curves

Bela Frigyik, Plamen Stefanov, Gunther Uhlmann

We study the weighted integral transform on a compact manifold with boundary over a smooth family of curves . We prove generic injectivity and a stability estimate under the con…

cs.IT2006★ 2 cited

Functional Bregman Divergence and Bayesian Estimation of Distributions

B. A. Frigyik, S. Srivastava, M. R. Gupta

A class of distortions termed functional Bregman divergences is defined, which includes squared error and relative entropy. A functional Bregman divergence acts on functions or dis…