Search Results for author: Michaël Fanuel

Found 17 papers, 7 papers with code

On sampling determinantal and Pfaffian point processes on a quantum computer

1 code implementation25 May 2023 Rémi Bardenet, Michaël Fanuel, Alexandre Feller

Most applications require sampling from a DPP, and given their quantum origin, it is natural to wonder whether sampling a DPP on a quantum computer is easier than on a classical one.

Point Processes

Sparsification of the regularized magnetic Laplacian with multi-type spanning forests

1 code implementation31 Aug 2022 Michaël Fanuel, Rémi Bardenet

We provide statistical guarantees for a choice of natural estimators of the connection Laplacian, and investigate two practical applications of our sparsifiers: ranking with angular synchronization and graph-based semi-supervised learning.

Vocal Bursts Type Prediction

Recovering Hölder smooth functions from noisy modulo samples

1 code implementation2 Dec 2021 Michaël Fanuel, Hemant Tyagi

We consider a fixed design setting where the modulo samples are given on a regular grid.

Denoising

Towards Deterministic Diverse Subset Sampling

no code implementations28 May 2021 Joachim Schreurs, Michaël Fanuel, Johan A. K. Suykens

Determinantal point processes (DPPs) are well known models for diverse subset selection problems, including recommendation tasks, document summarization and image search.

Document Summarization Image Retrieval +1

Leverage Score Sampling for Complete Mode Coverage in Generative Adversarial Networks

no code implementations6 Apr 2021 Joachim Schreurs, Hannes De Meulemeester, Michaël Fanuel, Bart De Moor, Johan A. K. Suykens

A generative model may overlook underrepresented modes that are less frequent in the empirical data distribution.

Determinantal Point Processes Implicitly Regularize Semi-parametric Regression Problems

no code implementations13 Nov 2020 Michaël Fanuel, Joachim Schreurs, Johan A. K. Suykens

Semi-parametric regression models are used in several applications which require comprehensibility without sacrificing accuracy.

Geophysics Point Processes +3

The Bures Metric for Taming Mode Collapse in Generative Adversarial Networks

no code implementations28 Sep 2020 Hannes De Meulemeester, Joachim Schreurs, Michaël Fanuel, Bart De Moor, Johan Suykens

However, under certain circumstances, the training of GANs can lead to mode collapse or mode dropping, i. e. the generative models not being able to sample from the entire probability distribution.

Denoising modulo samples: k-NN regression and tightness of SDP relaxation

1 code implementation10 Sep 2020 Michaël Fanuel, Hemant Tyagi

The estimates of the samples $f(x_i)$ can be subsequently utilized to construct an estimate of the function $f$, with the aforementioned uniform error rate.

Denoising regression

Ensemble Kernel Methods, Implicit Regularization and Determinantal Point Processes

no code implementations24 Jun 2020 Joachim Schreurs, Michaël Fanuel, Johan A. K. Suykens

By using the framework of Determinantal Point Processes (DPPs), some theoretical results concerning the interplay between diversity and regularization can be obtained.

Point Processes regression

The Bures Metric for Generative Adversarial Networks

no code implementations16 Jun 2020 Hannes De Meulemeester, Joachim Schreurs, Michaël Fanuel, Bart De Moor, Johan A. K. Suykens

However, under certain circumstances, the training of GANs can lead to mode collapse or mode dropping, i. e. the generative models not being able to sample from the entire probability distribution.

Diversity sampling is an implicit regularization for kernel methods

no code implementations20 Feb 2020 Michaël Fanuel, Joachim Schreurs, Johan A. K. Suykens

The Nystr\"om approximation -- based on a subset of landmarks -- gives a low rank approximation of the kernel matrix, and is known to provide a form of implicit regularization.

Point Processes regression

Wasserstein Exponential Kernels

1 code implementation5 Feb 2020 Henri De Plaen, Michaël Fanuel, Johan A. K. Suykens

In the context of kernel methods, the similarity between data points is encoded by the kernel function which is often defined thanks to the Euclidean distance, a common example being the squared exponential kernel.

Nyström landmark sampling and regularized Christoffel functions

no code implementations29 May 2019 Michaël Fanuel, Joachim Schreurs, Johan A. K. Suykens

In this context, we propose a deterministic and a randomized adaptive algorithm for selecting landmark points within a training data set.

Point Processes

Positive semi-definite embedding for dimensionality reduction and out-of-sample extensions

1 code implementation20 Nov 2017 Michaël Fanuel, Antoine Aspeel, Jean-Charles Delvenne, Johan A. K. Suykens

In machine learning or statistics, it is often desirable to reduce the dimensionality of a sample of data points in a high dimensional space $\mathbb{R}^d$.

Dimensionality Reduction

Robust Classification of Graph-Based Data

no code implementations21 Dec 2016 Carlos M. Alaíz, Michaël Fanuel, Johan A. K. Suykens

A graph-based classification method is proposed for semi-supervised learning in the case of Euclidean data and for classification in the case of graph data.

Classification General Classification +2

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