Search Results for author: Alejandro de la Concha

Found 7 papers, 2 papers with code

Collaborative non-parametric two-sample testing

no code implementations8 Feb 2024 Alejandro de la Concha, Nicolas Vayatis, Argyris Kalogeratos

This paper addresses the multiple two-sample test problem in a graph-structured setting, which is a common scenario in fields such as Spatial Statistics and Neuroscience.

Two-sample testing

Online non-parametric likelihood-ratio estimation by Pearson-divergence functional minimization

no code implementations3 Nov 2023 Alejandro de la Concha, Nicolas Vayatis, Argyris Kalogeratos

Quantifying the difference between two probability density functions, $p$ and $q$, using available data, is a fundamental problem in Statistics and Machine Learning.

Collaborative likelihood-ratio estimation over graphs

no code implementations28 May 2022 Alejandro de la Concha, Nicolas Vayatis, Argyris Kalogeratos

In this paper, we introduce the first -to the best of our knowledge-graph-based extension of this problem, which reads as follows: Suppose each node $v$ of a fixed graph has access to observations coming from two unknown node-specific pdfs, $p_v$ and $q_v$, and the goal is to estimate for each node the likelihood-ratio between both pdfs by also taking into account the information provided by the graph structure.

ADAPT : Awesome Domain Adaptation Python Toolbox

1 code implementation7 Jul 2021 Antoine de Mathelin, Mounir Atiq, Guillaume Richard, Alejandro de la Concha, Mouad Yachouti, François Deheeger, Mathilde Mougeot, Nicolas Vayatis

In this paper, we introduce the ADAPT library, an open source Python API providing the implementation of the main transfer learning and domain adaptation methods.

Domain Adaptation Transfer Learning

Offline detection of change-points in the mean for stationary graph signals

1 code implementation18 Jun 2020 Alejandro de la Concha, Nicolas Vayatis, Argyris Kalogeratos

This paper addresses the problem of segmenting a stream of graph signals: we aim to detect changes in the mean of a multivariate signal defined over the nodes of a known graph.

Change Point Detection Model Selection +1

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