Search Results for author: Alex Lambert

Found 5 papers, 3 papers with code

Extending Kernel PCA through Dualization: Sparsity, Robustness and Fast Algorithms

1 code implementation9 Jun 2023 Francesco Tonin, Alex Lambert, Panagiotis Patrinos, Johan A. K. Suykens

The goal of this paper is to revisit Kernel Principal Component Analysis (KPCA) through dualization of a difference of convex functions.

Functional Output Regression with Infimal Convolution: Exploring the Huber and $ε$-insensitive Losses

1 code implementation16 Jun 2022 Alex Lambert, Dimitri Bouche, Zoltan Szabo, Florence d'Alché-Buc

The efficiency of the approach is demonstrated and contrasted with the classical squared loss setting on both synthetic and real-world benchmarks.

regression

Duality in RKHSs with Infinite Dimensional Outputs: Application to Robust Losses

no code implementations ICML 2020 Pierre Laforgue, Alex Lambert, Luc Brogat-Motte, Florence d'Alché-Buc

Operator-Valued Kernels (OVKs) and associated vector-valued Reproducing Kernel Hilbert Spaces provide an elegant way to extend scalar kernel methods when the output space is a Hilbert space.

regression Representation Learning +1

Infinite-Task Learning with RKHSs

no code implementations22 May 2018 Romain Brault, Alex Lambert, Zoltán Szabó, Maxime Sangnier, Florence d'Alché-Buc

A step further consists of learning a continuum of tasks for various loss functions.

Multi-Task Learning

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