Olivier Vu Thanh — accepted AI-conference papers

2022

Bounded Simplex-Structured Matrix Factorization

Olivier Vu Thanh, Nicolas Gillis, Fabian Lecron

ICASSP 2022accepted

In this paper, we propose a new low-rank matrix factorization model, dubbed bounded simplex-structured matrix factorization (BSSMF). Given an input matrix X and a factorization rank r, BSSMF looks for a matrix W with r columns and a matrix H with r rows such that X ≈ W H where the entries in each co…

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2021

In Situ Calibration of Cross-Sensitive Sensors in Mobile Sensor Arrays Using Fast Informed Non-Negative Matrix Factorization

Olivier Vu Thanh, Matthieu Puigt, Farouk Yahaya, Gilles Delmaire, Gilles Roussel

ICASSP 2021accepted

In this paper, we assume a set of mobile geolocalized sensor arrays observing an area over time. Each of these arrays consists of heterogeneous and cross-sensitive sensors, i.e., the sensor readings provided by one of such sensors also depends on the readings of the other sensors in the array. We fu…

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