Search Results for author: Mohamed Morchid

Found 20 papers, 4 papers with code

Quaternion Neural Networks for Multi-channel Distant Speech Recognition

1 code implementation18 May 2020 Xinchi Qiu, Titouan Parcollet, Mirco Ravanelli, Nicholas Lane, Mohamed Morchid

In this paper, we propose to capture these inter- and intra- structural dependencies with quaternion neural networks, which can jointly process multiple signals as whole quaternion entities.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

Real to H-space Encoder for Speech Recognition

no code implementations17 Jun 2019 Titouan Parcollet, Mohamed Morchid, Georges Linarès, Renato de Mori

Deep neural networks (DNNs) and more precisely recurrent neural networks (RNNs) are at the core of modern automatic speech recognition systems, due to their efficiency to process input sequences.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Quaternion Convolutional Neural Networks for End-to-End Automatic Speech Recognition

1 code implementation20 Jun 2018 Titouan Parcollet, Ying Zhang, Mohamed Morchid, Chiheb Trabelsi, Georges Linarès, Renato De Mori, Yoshua Bengio

Quaternion numbers and quaternion neural networks have shown their efficiency to process multidimensional inputs as entities, to encode internal dependencies, and to solve many tasks with less learning parameters than real-valued models.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Quaternion Recurrent Neural Networks

3 code implementations ICLR 2019 Titouan Parcollet, Mirco Ravanelli, Mohamed Morchid, Georges Linarès, Chiheb Trabelsi, Renato de Mori, Yoshua Bengio

Recurrent neural networks (RNNs) are powerful architectures to model sequential data, due to their capability to learn short and long-term dependencies between the basic elements of a sequence.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Automatic Text Summarization Approaches to Speed up Topic Model Learning Process

no code implementations20 Mar 2017 Mohamed Morchid, Juan-Manuel Torres-Moreno, Richard Dufour, Javier Ramírez-Rodríguez, Georges Linarès

One of the main difficulty in using topic model on huge data collection is related to the material resources (CPU time and memory) required for model estimate.

Information Retrieval Retrieval +1

Systèmes du LIA à DEFT'13

no code implementations21 Feb 2017 Xavier Bost, Ilaria Brunetti, Luis Adrián Cabrera-Diego, Jean-Valère Cossu, Andréa Linhares, Mohamed Morchid, Juan-Manuel Torres-Moreno, Marc El-Bèze, Richard Dufour

The 2013 D\'efi de Fouille de Textes (DEFT) campaign is interested in two types of language analysis tasks, the document classification and the information extraction in the specialized domain of cuisine recipes.

Document Classification General Classification

Un Corpus de Flux TV Annot\'es pour la Pr\'ediction de Genres (A Genre Annotated Corpus of French Multi-channel TV Streams for Genre Prediction)

no code implementations JEPTALNRECITAL 2016 Mohamed Bouaziz, Mohamed Morchid, Richard Dufour, Georges Linar{\`e}s, Prosper Correa

Cet article pr{\'e}sente une m{\'e}thode de pr{\'e}diction de genres d{'}{\'e}missions t{\'e}l{\'e}vis{\'e}es couvrant 2 jours de diffusion de 4 cha{\^\i}nes TV fran{\c{c}}aises structur{\'e}s en {\'e}missions annot{\'e}es en genres.

Auto-encodeurs pour la compr\'ehension de documents parl\'es (Auto-encoders for Spoken Document Understanding)

no code implementations JEPTALNRECITAL 2016 Killian Janod, Mohamed Morchid, Richard Dufour, Georges Linar{\`e}s, Renato de Mori

Les repr{\'e}sentations de documents au moyen d{'}approches {\`a} base de r{\'e}seaux de neurones ont montr{\'e} des am{\'e}liorations significatives dans de nombreuses t{\^a}ches du traitement du langage naturel.

document understanding

Utilisation d'annotations s\'emantiques pour la validation automatique d'hypoth\`eses dans des conversations t\'el\'ephoniques

no code implementations JEPTALNRECITAL 2015 Carole Lailler, Yannick Est{\`e}ve, Renato de Mori, Mohamed Bouall{\`e}gue, Mohamed Morchid

Les travaux pr{\'e}sent{\'e}s portent sur l{'}extraction automatique d{'}unit{\'e}s s{\'e}mantiques et l{'}{\'e}valuation de leur pertinence pour des conversations t{\'e}l{\'e}phoniques.

Apport de l'information temporelle des contextes pour la repr\'esentation vectorielle continue des mots

no code implementations JEPTALNRECITAL 2015 Killian Janod, Mohamed Morchid, Richard Dufour, Georges Linares

Ces approches sont manipul{\'e}es au travers d{'}un r{\'e}seau de neurones, l{'}architecture CBOW cherchant alors {\`a} pr{\'e}dire un mot sachant son contexte, alors que l{'}architecture Skip-Gram pr{\'e}dit un contexte sachant un mot.

Initialisation de R\'eseaux de Neurones \`a l'aide d'un Espace Th\'ematique

no code implementations JEPTALNRECITAL 2015 Mohamed Morchid, Richard Dufour, Georges Linar{\`e}s

La m{\'e}thode propos{\'e}e consiste {\`a} configurer la topologie d{'}un ANN ainsi que d{'}initialiser les connexions de celui-ci {\`a} l{'}aide des espaces th{\'e}matiques appris pr{\'e}c{\'e}demment.

A LDA-Based Topic Classification Approach From Highly Imperfect Automatic Transcriptions

no code implementations LREC 2014 Mohamed Morchid, Richard Dufour, Georges Linar{\`e}s

Although the current transcription systems could achieve high recognition performance, they still have a lot of difficulties to transcribe speech in very noisy environments.

General Classification Information Retrieval +2

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