Search Results for author: Marc Sebban

Found 18 papers, 3 papers with code

A Swiss Army Knife for Minimax Optimal Transport

1 code implementation ICML 2020 Sofien Dhouib, Ievgen Redko, Tanguy Kerdoncuff, Rémi Emonet, Marc Sebban

The Optimal transport (OT) problem and its associated Wasserstein distance have recently become a topic of great interest in the machine learning community.

Fast Multiscale Diffusion on Graphs

1 code implementation29 Apr 2021 Sibylle Marcotte, Amélie Barbe, Rémi Gribonval, Titouan Vayer, Marc Sebban, Pierre Borgnat, Paulo Gonçalves

Diffusing a graph signal at multiple scales requires computing the action of the exponential of several multiples of the Laplacian matrix.

A survey on domain adaptation theory: learning bounds and theoretical guarantees

no code implementations24 Apr 2020 Ievgen Redko, Emilie Morvant, Amaury Habrard, Marc Sebban, Younès Bennani

Despite a large amount of different transfer learning scenarios, the main objective of this survey is to provide an overview of the state-of-the-art theoretical results in a specific, and arguably the most popular, sub-field of transfer learning, called domain adaptation.

BIG-bench Machine Learning Domain Adaptation +1

Metric Learning from Imbalanced Data

no code implementations4 Sep 2019 Léo Gautheron, Emilie Morvant, Amaury Habrard, Marc Sebban

A key element of any machine learning algorithm is the use of a function that measures the dis/similarity between data points.

BIG-bench Machine Learning Metric Learning

An Adjusted Nearest Neighbor Algorithm Maximizing the F-Measure from Imbalanced Data

no code implementations2 Sep 2019 Rémi Viola, Rémi Emonet, Amaury Habrard, Guillaume Metzler, Sébastien Riou, Marc Sebban

In this paper, we address the challenging problem of learning from imbalanced data using a Nearest-Neighbor (NN) algorithm.

Fraud Detection

Learning Landmark-Based Ensembles with Random Fourier Features and Gradient Boosting

no code implementations14 Jun 2019 Léo Gautheron, Pascal Germain, Amaury Habrard, Emilie Morvant, Marc Sebban, Valentina Zantedeschi

Unlike state-of-the-art Multiple Kernel Learning techniques that make use of a pre-computed dictionary of kernel functions to select from, at each iteration we fit a kernel by approximating it as a weighted sum of Random Fourier Features (RFF) and by optimizing their barycenter.

Deep multi-Wasserstein unsupervised domain adaptation

2 code implementations Pattern Recognition Letters 2019 Tien-Nam Le, Amaury Habrard, Marc Sebban

In unsupervised domain adaptation (DA), 1 aims at learning from labeled source data and fully unlabeled target examples a model with a low error on the target domain.

Generalization Bounds Unsupervised Domain Adaptation

L$^3$-SVMs: Landmarks-based Linear Local Support Vectors Machines

no code implementations1 Mar 2017 Valentina Zantedeschi, Rémi Emonet, Marc Sebban

For their ability to capture non-linearities in the data and to scale to large training sets, local Support Vector Machines (SVMs) have received a special attention during the past decade.

Dimensionality Reduction

beta-risk: a New Surrogate Risk for Learning from Weakly Labeled Data

no code implementations NeurIPS 2016 Valentina Zantedeschi, Rémi Emonet, Marc Sebban

During the past few years, the machine learning community has paid attention to developping new methods for learning from weakly labeled data.

Similarity Learning for Time Series Classification

no code implementations15 Oct 2016 Maria-Irina Nicolae, Éric Gaussier, Amaury Habrard, Marc Sebban

In this paper, we propose a novel method for learning similarities based on DTW, in order to improve time series classification.

Classification Dynamic Time Warping +4

Theoretical Analysis of Domain Adaptation with Optimal Transport

no code implementations14 Oct 2016 Ievgen Redko, Amaury Habrard, Marc Sebban

Domain adaptation (DA) is an important and emerging field of machine learning that tackles the problem occurring when the distributions of training (source domain) and test (target domain) data are similar but different.

Domain Adaptation

Metric Learning as Convex Combinations of Local Models With Generalization Guarantees

no code implementations CVPR 2016 Valentina Zantedeschi, Remi Emonet, Marc Sebban

Over the past ten years, metric learning allowed the improvement of the numerous machine learning approaches that manipulate distances or similarities.

Metric Learning regression

Lipschitz Continuity of Mahalanobis Distances and Bilinear Forms

no code implementations4 Apr 2016 Valentina Zantedeschi, Rémi Emonet, Marc Sebban

Many theoretical results in the machine learning domain stand only for functions that are Lipschitz continuous.

BIG-bench Machine Learning

Landmarks-Based Kernelized Subspace Alignment for Unsupervised Domain Adaptation

no code implementations CVPR 2015 Rahaf Aljundi, Remi Emonet, Damien Muselet, Marc Sebban

Domain adaptation (DA) has gained a lot of success in the recent years in computer vision to deal with situations where the learning process has to transfer knowledge from a source to a target domain.

Unsupervised Domain Adaptation

Subspace Alignment For Domain Adaptation

no code implementations18 Sep 2014 Basura Fernando, Amaury Habrard, Marc Sebban, Tinne Tuytelaars

We present two approaches to determine the only hyper-parameter in our method corresponding to the size of the subspaces.

Domain Adaptation

A Survey on Metric Learning for Feature Vectors and Structured Data

no code implementations28 Jun 2013 Aurélien Bellet, Amaury Habrard, Marc Sebban

The need for appropriate ways to measure the distance or similarity between data is ubiquitous in machine learning, pattern recognition and data mining, but handcrafting such good metrics for specific problems is generally difficult.

BIG-bench Machine Learning Metric Learning

Similarity Learning for Provably Accurate Sparse Linear Classification

no code implementations27 Jun 2012 Aurelien Bellet, Amaury Habrard, Marc Sebban

In recent years, the crucial importance of metrics in machine learning algorithms has led to an increasing interest for optimizing distance and similarity functions.

Classification General Classification

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