Search Results for author: Alexander Mey

Found 11 papers, 4 papers with code

Invariant Causal Prediction with Locally Linear Models

no code implementations10 Jan 2024 Alexander Mey, Rui Manuel Castro

We consider the task of identifying the causal parents of a target variable among a set of candidate variables from observational data.

Loss Bounds for Approximate Influence-Based Abstraction

1 code implementation3 Nov 2020 Elena Congeduti, Alexander Mey, Frans A. Oliehoek

Sequential decision making techniques hold great promise to improve the performance of many real-world systems, but computational complexity hampers their principled application.

Decision Making

A Note on High-Probability versus In-Expectation Guarantees of Generalization Bounds in Machine Learning

no code implementations6 Oct 2020 Alexander Mey

Following that, statements made about the performance of machine learning models have to take the sampling process into account.

BIG-bench Machine Learning Generalization Bounds +1

A Brief Prehistory of Double Descent

no code implementations7 Apr 2020 Marco Loog, Tom Viering, Alexander Mey, Jesse H. Krijthe, David M. J. Tax

In their thought-provoking paper [1], Belkin et al. illustrate and discuss the shape of risk curves in the context of modern high-complexity learners.

Prehistory

Making Learners (More) Monotone

no code implementations25 Nov 2019 Tom J. Viering, Alexander Mey, Marco Loog

Learning performance can show non-monotonic behavior.

Consistency and Finite Sample Behavior of Binary Class Probability Estimation

no code implementations30 Aug 2019 Alexander Mey, Marco Loog

Our main contribution is to present a way to derive finite sample L1-convergence rates of this estimator for different surrogate loss functions.

Improvability Through Semi-Supervised Learning: A Survey of Theoretical Results

no code implementations26 Aug 2019 Alexander Mey, Marco Loog

In this review we gather results about the possible gains one can achieve when using semi-supervised learning as well as results about the limits of such methods.

Minimizers of the Empirical Risk and Risk Monotonicity

1 code implementation NeurIPS 2019 Marco Loog, Tom Viering, Alexander Mey

Plotting a learner's average performance against the number of training samples results in a learning curve.

Density Estimation

A Distribution Dependent and Independent Complexity Analysis of Manifold Regularization

no code implementations14 Jun 2019 Alexander Mey, Tom Viering, Marco Loog

Here, we derive sample complexity bounds based on pseudo-dimension for models that add a convex data dependent regularization term to a supervised learning process, as is in particular done in Manifold regularization.

General Classification

Semi-Supervised Learning, Causality and the Conditional Cluster Assumption

1 code implementation28 May 2019 Julius von Kügelgen, Alexander Mey, Marco Loog, Bernhard Schölkopf

While the success of semi-supervised learning (SSL) is still not fully understood, Sch\"olkopf et al. (2012) have established a link to the principle of independent causal mechanisms.

Semi-Generative Modelling: Covariate-Shift Adaptation with Cause and Effect Features

1 code implementation20 Jul 2018 Julius von Kügelgen, Alexander Mey, Marco Loog

Current methods for covariate-shift adaptation use unlabelled data to compute importance weights or domain-invariant features, while the final model is trained on labelled data only.

Domain Adaptation

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