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Dive into the research topics where Joel Sirot is active.

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Featured researches published by Joel Sirot.


international conference on acoustics, speech, and signal processing | 2014

An interactive audio source separation framework based on non-negative matrix factorization

Ngoc Q. K. Duong; Alexey Ozerov; Louis Chevallier; Joel Sirot

Though audio source separation offers a wide range of applications in audio enhancement and post-production, its performance has yet to reach the satisfactory especially for single-channel mixtures with limited training data. In this paper we present a novel interactive source separation framework that allows end-users to provide feedback at each separation step so as to gradually improve the result. For this purpose, a prototype graphical user interface (GUI) is developed to help users annotating time-frequency regions where a source can be labeled as either active, inactive, or well-separated within the displayed spectrogram. This user feedback information, which is partially new with respect to the state-of-the-art annotations, is then taken into account in a proposed uncertainty-based learning algorithm to constraint the source estimates in next separation step. The considered framework is based on non-negative matrix factorization and is shown to be effective even without using any isolated training data.


Archive | 2011

METHOD FOR NAVIGATING IDENTIFIERS PLACED IN AREAS AND RECEIVER IMPLEMENTING THE METHOD

Joel Sirot; Louis Chevallier


Archive | 2013

Method and apparatus for retrieving a media file of interest

Jean-Ronan Vigouroux; Valerie Allie; Joel Sirot


Archive | 2016

METHOD AND DEVICE FOR BOUNDING AN OBJECT IN A VIDEO

Joel Sirot; Louis Chevallier; Jean-Ronan Vigouroux


Archive | 2016

Selection method for at least one item, terminal, computer program product and corresponding storage medium

Joel Sirot; Frédéric Lefebvre; Vincent Demoulin; Tomas Enrique Crivelli


Archive | 2015

ANNOTATION METHOD AND CORRESPONDING DEVICE, COMPUTER PROGRAM PRODUCT AND STORAGE MEDIUM

Joel Sirot; Jean-Ronan Vigouroux; Louis Chevallier


Archive | 2015

Procede de selection d'au moins un item, terminal, produit programme d'ordinateur et support de stockage correspondant

Joel Sirot; Frédéric Lefebvre; Vincent Demoulin; Tomas Enrique Crivelli


Archive | 2014

Method and device for searching for content

Frédéric Babon; Jean-Ronan Vigouroux; Joel Sirot


Archive | 2013

Method and device for querying a knowledge base associated with a multimedia content

Louis Chevallier; Izabela Orlac; Joel Sirot


Archive | 2013

Method and apparatus for displaying metadata on a display and for providing metadata for display

Joel Sirot; Jean-Ronan Vigouroux; Louis Chevallier; Frédéric Lefebvre; Joaquin Zepeda

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Frédéric Lefebvre

Université catholique de Louvain

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