Search Results for author: Riikka Huusari

Found 6 papers, 3 papers with code

Scalable variable selection for two-view learning tasks with projection operators

1 code implementation4 Jul 2023 Sandor Szedmak, Riikka Huusari, Tat Hong Duong Le, Juho Rousu

With the projection operators the relationship, correlation, between sets of input and output variables can also be expressed by kernel functions, thus nonlinear correlation models can be exploited as well.

Variable Selection

Learning primal-dual sparse kernel machines

1 code implementation27 Aug 2021 Riikka Huusari, Sahely Bhadra, Cécile Capponi, Hachem Kadri, Juho Rousu

In this paper, instead of using the traditional representer theorem, we propose to search for a solution in RKHS that has a pre-image decomposition in the original data space, where the elements don't necessarily correspond to the elements in the training set.

Entangled Kernels -- Beyond Separability

no code implementations14 Jan 2021 Riikka Huusari, Hachem Kadri

We consider the problem of operator-valued kernel learning and investigate the possibility of going beyond the well-known separable kernels.

Supervised dimensionality reduction

Partial Trace Regression and Low-Rank Kraus Decomposition

1 code implementation ICML 2020 Hachem Kadri, Stéphane Ayache, Riikka Huusari, Alain Rakotomamonjy, Liva Ralaivola

The trace regression model, a direct extension of the well-studied linear regression model, allows one to map matrices to real-valued outputs.

Matrix Completion regression

Cross-view kernel transfer

no code implementations14 Oct 2019 Riikka Huusari, Cécile Capponi, Paul Villoutreix, Hachem Kadri

We consider the kernel completion problem with the presence of multiple views in the data.

Multi-view Metric Learning in Vector-valued Kernel Spaces

no code implementations21 Mar 2018 Riikka Huusari, Hachem Kadri, Cécile Capponi

We consider the problem of metric learning for multi-view data and present a novel method for learning within-view as well as between-view metrics in vector-valued kernel spaces, as a way to capture multi-modal structure of the data.

Metric Learning

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