Sahar Ghannay

Identifiants chercheurs

IdHAL :

sahar-ghannay

ORCID :

0000-0002-7531-2522

IdRef :

220420521

VIAF :

119151302887948660077

Présentation

Associate professort at LIMSI, CNRS, Université Paris-Saclay

Team: ILES

Email: sahar.ghannay@limsi.fr

Website: https://saharghannay.github.io

Short Bio

Sahar Ghannay is an associate professor at Université Paris-Saclay, in the CNRS, LISN research center, since September 2018.

She received a PhD in Computer Science from Le Mans University on Septembre 2017. Her thesis work is part of the ANR VERA (AdVanced ERror Analysis for speech recognition) project. During her PhD, she spent a few months as @ visiting researcher at Apple within the Siri Speech team.

As a postdoctoral researcher at LIUM, she worked on neural end-to-end systems for the detection of named entities, speech understanding, as part of the Chist-Era M2CR (Multimodal Multilingual Continuous Representation for Human Language Understanding) project.

Her research interests are representation learning and semantic information extraction from spoken and written language.More recently, her work has extended to multimodal representations, particularly through visual question answering and the development of multimodal corpora.

CV

Education

PHD in computer science, at LIUM, Le Mans université, 2017

MS in computer science, Le Mans université, 2013

BS in computer science, Le Mans université and université de sfax, 2011

Work Experience

2018 - now: Associate Professort at LISN, CNRS, Université Paris-Saclay

2017-2018: Post-doc at LIUM, Le Mans université

2017 (4 moths): Internship at Apple within the Siri Speech team at Cupertino

April 2013-Sept. 2014: research engineer

Publications

Article dans une revue (7)

RNA-TorsionBERT: leveraging language models for RNA 3D torsion angles prediction Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi Bioinformatics, 2025, 41 (1), pp.btaf004. ⟨10.1093/bioinformatics/btaf004⟩ Article dans une revue hal-04911519v1
RNAdvisor 2: A unified platform for RNA 3D model quality assessment using metrics, scoring functions, and meta-metrics Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi Scientific Reports, 2025, 15 (1), pp.41487. ⟨10.1038/s41598-025-23326-y⟩ Article dans une revue hal-05452894v1
Has AlphaFold 3 achieved success for RNA? Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi Acta crystallographica Section D : Structural biology [1993-..], 2025, 81 (2), pp.49--62. ⟨10.1107/S2059798325000592⟩ Article dans une revue hal-04919467v1
State-of-the-RNArt: benchmarking current methods for RNA 3D structure prediction Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi NAR Genomics and Bioinformatics, 2024, Volume 6 (Issue 2), pp.lqae048. ⟨10.1101/2023.12.22.573067⟩ Article dans une revue hal-04437967v2
RNAdvisor: a comprehensive benchmarking tool for the measure and prediction of RNA structural model quality Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi Briefings in Bioinformatics, 2024, Volume 25 (Issue 2), pp.bbae064. ⟨10.1101/2023.11.14.567018⟩ Article dans une revue hal-04437940v1
Diart: A Python Library for Real-Time Speaker Diarization Juan Manuel Coria,Hervé Bredin,Sahar Ghannay,Sophie Rosset,Khaled Zaouket al. Journal of Open Source Software, 2024, 9 (99), pp.5266. ⟨10.21105/joss.05266⟩ Article dans une revue hal-05530961v1
A study of continuous space word and sentence representations applied to ASR error detection Sahar Ghannay,Yannick Estève,Nathalie Camelin Speech Communication, 2020 Article dans une revue hal-02501943v1

Communication dans un congrès (51)

Evaluating the Confidentiality of Synthetic Clinical Texts Generated by Language Models Foucauld Estignard,Sahar Ghannay,Julien Girard-Satabin,Nicolas Hiebel,Aurélie Névéol 23rd International Conference on Artificial Intelligence in Medicine (AIME), Jun 2025, Pavie, Italy. pp.130-139, ⟨10.1007/978-3-031-95838-0_13⟩ Communication dans un congrès hal-05046326v2
Entity-aware cross-modal pretraining for Knowledge-Based Visual Question Answering Omar Adjali,Olivier Ferret,Sahar Ghannay,Hervé Le Borgne European Conference on Information Retrieval (ECIR), Apr 2025, Lucca, Italy. pp.391-400, ⟨10.1007/978-3-031-88714-7_38⟩ Communication dans un congrès cea-04910767v1
Génération augmentée de récupération multi-niveau pour répondre à des questions visuelles Omar Adjali,Olivier Ferret,Sahar Ghannay,Hervé Le Borgne 20e Conférence en Recherche d’Information et Applications (CORIA) 32ème Conférence sur le Traitement Automatique des Langues Naturelles (TALN) 27ème Rencontre des Étudiants Chercheurs en Informatique pour le Traitement Automatique des Langues (RECITAL) Les 18e Rencontres Jeunes Chercheurs en RI (RJCRI), Jul 2025, Marseille, France. pp.128-130 Communication dans un congrès hal-05330645v1
Détection des contaminations de LLM par extraction de données : une revue de littérature pratique Pierre Lepagnol,Thomas Gerald,Sahar Ghannay,Christophe Servan,S. Rosset 20e Conférence en Recherche d’Information et Applications (CORIA) 32ème Conférence sur le Traitement Automatique des Langues Naturelles (TALN) 27ème Rencontre des Étudiants Chercheurs en Informatique pour le Traitement Automatique des Langues (RECITAL) Les 18e Rencontres Jeunes Chercheurs en RI (RJCRI), Jul 2025, Marseille, France. pp.233-251 Communication dans un congrès hal-05330614v1
Leveraging Information Retrieval to Enhance Spoken Language Understanding Prompts in Few-Shot Learning Pierre Lepagnol,Sahar Ghannay,Thomas Gerald,Christophe Servan,Sophie Rosset Interspeech 2025, Aug 2025, Rotterdam, Netherlands. ⟨10.21437/Interspeech.2025-175⟩ Communication dans un congrès hal-05095796v1
XAI for Gender Representation in Media Analysis François Buet,Camille Guinaudeau,Cyril Grouin,Sahar Ghannay,Shin’ichi Satoh 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2025), IEEE Signal Processing Society, Apr 2025, Hyderabad, India. pp.1-5, ⟨10.1109/ICASSP49660.2025.10888945⟩ Communication dans un congrès hal-05442625v1
New Semantic Task for the French Spoken Language Understanding MEDIA Benchmark Nadège Alavoine,Gaëlle Laperriere,Christophe Servan,Sahar Ghannay,Sophie Rosset The 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), May 2024, Torino, Italy. pp.12227-12246 Communication dans un congrès hal-04523286v1
Les petits modèles sont bons : une étude empirique de classification dans un contexte zero-shot Pierre Lepagnol,Thomas Gerald,Sahar Ghannay,Christophe Servan,Sophie Rosset 31ème Conférence sur le Traitement Automatique des Langues Naturelles (TALN 2024), Jul 2024, Toulouse, France. pp.113-129 Communication dans un congrès hal-04623012v2
Nouvelle tâche sémantique pour le corpus de compréhension de parole en français MEDIA Nadège Alavoine,Gaëlle Laperrière,Christophe Servan,Sahar Ghannay,Sophie Rosset 35èmes Journées d'Études sur la Parole (JEP 2024), Jul 2024, Toulouse, France. pp.470-480 Communication dans un congrès hal-04623097v1
Small Language Models are Good Too: An Empirical Study of Zero-Shot Classification Pierre Lepagnol,Thomas Gerald,Sahar Ghannay,Christophe Servan,Sophie Rosset The 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), May 2024, TURIN, Italy. pp.14923-14936 Communication dans un congrès hal-04519930v2
Multi-Level Information Retrieval Augmented Generation for Knowledge-based Visual Question Answering Omar Adjali,Olivier Ferret,Sahar Ghannay,Hervé Le Borgne The 2024 Conference on Empirical Methods in Natural Language Processing (EMNLP 2024), Nov 2024, Miami, United States. pp.16499-16513, ⟨10.18653/v1/2024.emnlp-main.922⟩ Communication dans un congrès hal-04852275v1
mALBERT: Is a Compact Multilingual BERT Model Still Worth It? Christophe Servan,Sahar Ghannay,Sophie Rosset The 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), May 2024, Torino, Italy. pp.11023-11029 Communication dans un congrès hal-04520797v1
Utiliser l'explicabilité des modèles pour mettre en évidence les expressions genrées dans la parole François Buet,Camille Guinaudeau,Cyril Grouin,Sahar Ghannay,Shin'Ichi Satoh 31ème Conférence sur le Traitement Automatique des Langues Naturelles (TALN 2024), Jul 2024, Toulouse, France. pp.695-707 Communication dans un congrès hal-04623052v1
A dual task learning approach to fine-tune a multilingual semantic speech encoder for Spoken Language Understanding Gaëlle Laperrière,Sahar Ghannay,Bassam Jabaian,Yannick Estève Interspeech 2024, Sep 2024, Kos, Greece Communication dans un congrès hal-04615074v1
Projet Gender Equality Monitor (GEM) Gilles Adda,François Buet,Sahar Ghannay,Cyril Grouin,Camille Guinaudeauet al. CORIA-TALN 2023 30e Conférence sur le Traitement Automatique des Langues Naturelles (TALN), Jun 2023, Paris, France. pp.21-21 Communication dans un congrès hal-04208588v1
Explicit knowledge integration for knowledge-aware visual question answering about named entities Omar Adjali,Paul Grimal,Olivier Ferret,Sahar Ghannay,Hervé Le Borgne ICRM'23 - ACM International Conference on Multimedia Retrieval, ACM, Jun 2023, Thessalonique, Greece. pp.29-38, ⟨10.1145/3591106.3592227⟩ Communication dans un congrès cea-04172061v1
Specialized Semantic Enrichment of Speech Representations G. Laperrière,Ha Nguyen,Sahar Ghannay,Bassam Jabaian,Yannick Estève 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW), Jun 2023, Rhodes Island, Greece. pp.1-5, ⟨10.1109/ICASSPW59220.2023.10193452⟩ Communication dans un congrès hal-04425710v1
Continual self-supervised domain adaptation for end-to-end speaker diarization Juan Manuel Coria,Hervé Bredin,Sahar Ghannay,Sophie Rosset IEEE Spoken Language Technology Workshop (SLT 2022), IEEE Speech and Language Processing Technical Committee, Jan 2023, Doha, Qatar. pp.626 - 632, ⟨10.1109/SLT54892.2023.10023195⟩ Communication dans un congrès hal-03824546v1
The Spoken Language Understanding MEDIA Benchmark Dataset in the Era of Deep Learning: data updates, training and evaluation tools Gaëlle Laperrière,Valentin Pelloin,Antoine Caubrière,Salima Mdhaffar,Nathalie Camelinet al. LREC 2022 - 13th Language Resources and Evaluation Conference, Jun 2022, Marseille, France. pp.1595‑1602 Communication dans un congrès hal-03706938v1
Étude comparative de modèles Transformers en compréhension de la parole en français Oralie Cattan,Sahar Ghannay,Christophe Servan,Sophie Rosset 34e Journées d'Etudes sur la Parole (JEP2022), Jun 2022, Île de Noirmoutier, France. pp.721-730, ⟨10.21437/JEP.2022-76⟩ Communication dans un congrès hal-03701654v1
Impact Analysis of the Use of Speech and Language Models Pretrained by Self-Supersivion for Spoken Language Understanding Salima Mdhaffar,Valentin Pelloin,Antoine Caubrière,Gaëlle Laperrière,Sahar Ghannayet al. LREC 2022 - 13th Language Resources and Evaluation Conference, Jun 2022, Marseille, France. pp.2949‑2956 Communication dans un congrès hal-03706925v1
Benchmarking Transformers-based models on French Spoken Language Understanding tasks Oralie Cattan,Sahar Ghannay,Christophe Servan,Sophie Rosset INTERSPEECH 2022, Sep 2022, Incheon, South Korea. pp.1238-1242, ⟨10.21437/Interspeech.2022-385⟩ Communication dans un congrès hal-03715340v2
Le benchmark MEDIA revisité : données, outils et évaluation dans un contexte d'apprentissage profond Gaëlle Laperrière,Valentin Pelloin,Antoine Caubrière,Salima Mdhaffar,Nathalie Camelinet al. XXXIVe Journées d'Études sur la Parole -- JEP 2022, Jun 2022, île de Noirmoutier, France. pp.481-490, ⟨10.21437/JEP.2022-51⟩ Communication dans un congrès hal-03770588v1
Analyzing BERT Cross-lingual Transfer Capabilities in Continual Sequence Labeling Juan Manuel Coria,Mathilde Veron,Sahar Ghannay,Guillaume Bernard,Hervé Bredinet al. First Workshop on Performance and Interpretability Evaluations of Multimodal, Multipurpose, Massive-Scale Models, Oct 2022, virtual, South Korea Communication dans un congrès hal-03824597v1
Evaluating the carbon footprint of NLP methods: a survey and analysis of existing tools Nesrine Bannour,Sahar Ghannay,Aurélie Névéol,Anne-Laure Ligozat EMNLP, Workshop SustaiNLP, Nov 2021, Punta Cana, Dominican Republic. ⟨10.18653/v1/2021.sustainlp-1.2⟩ Communication dans un congrès hal-03435068v1
Overlap-Aware Low-Latency Online Speaker Diarization Based on End-To-End Local Segmentation Juan Manuel Coria,Hervé Bredin,Sahar Ghannay,Sophie Rosset IEEE Automatic Speech Recognition and Unserstanding Workshop, Dec 2021, Cartagena, Colombia. pp.1139-1146, ⟨10.1109/ASRU51503.2021.9688044⟩ Communication dans un congrès hal-03375330v1
Where are we in semantic concept extraction for Spoken Language Understanding? ⋆ Sahar Ghannay,Antoine Caubrière,Salima Mdhaffar,Gaëlle Laperrière,Bassam Jabaianet al. SPECOM 2021 23rd International Conference on Speech and Computer, Sep 2021, Saint Petersburg, Russia Communication dans un congrès hal-03372494v1
Error analysis applied to end-to end spoken language understanding Antoine Caubrière,Sahar Ghannay,Natalia Tomashenko,Renato de Mori,Antoine Laurentet al. 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020), May 2020, Barcelona, Spain. pp.8514-8518, ⟨10.1109/ICASSP40776.2020.9054455⟩ Communication dans un congrès hal-02465899v1
What is best for Spoken Language Understanding: Small but Task-dependant Embeddings or Huge but Out-of-domain Embeddings? Sahar Ghannay,Antoine Neuraz,Sophie Rosset 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020), May 2020, Barcelona, Spain. pp.8114-8118, ⟨10.1109/ICASSP40776.2020.9053278⟩ Communication dans un congrès hal-02503694v1
Experiments from LIMSI at the French Named Entity Recognition Coarse-grained task Sahar Ghannay,Cyril Grouin,Thomas Lavergne Conference and Labs of the Evaluation Forum, Sep 2020, Thessaloniki, Greece Communication dans un congrès hal-04395545v1
A Metric Learning Approach to Misogyny Categorization Juan Manuel Coria,Sahar Ghannay,Sophie Rosset,Hervé Bredin Workshop on Representation Learning for NLP, Jul 2020, Online, France. pp.89-94, ⟨10.18653/v1/2020.repl4nlp-1.12⟩ Communication dans un congrès hal-02989293v1
Neural Networks approaches focused on French Spoken Language Understanding: application to the MEDIA Evaluation Task Sahar Ghannay,Christophe Servan,Sophie Rosset In Proceedings of The 28th International Conference on Computational Linguistics (COLING’2020), 2020, Dec 2020, Barcelona (online), Spain. pp.2722-2727, ⟨10.18653/v1/2020.coling-main.245⟩ Communication dans un congrès hal-03007482v1
A Cooking Knowledge Graph and Benchmark for Question Answering Evaluation in Lifelong Learning Scenarios Mathilde Veron,Anselmo Peñas,Guillermo Echegoyen,Somnath Banerjee,Sahar Ghannayet al. International Conference on Applications of Natural Language to Information Systems, Elisabeth Métais and Farid Meziane and Helmut Horacek and Philipp Cimiano, Jun 2020, Saarbrücken, Germany Communication dans un congrès hal-03006228v1
A Comparison of Metric Learning Loss Functions for End-To-End Speaker Verification Juan Manuel Coria,Hervé Bredin,Sahar Ghannay,Sophie Rosset International Conference on Statistical Language and Speech Processing, Oct 2020, Cardiff, United Kingdom. pp.137-148, ⟨10.1007/978-3-030-59430-5_11⟩ Communication dans un congrès hal-02989334v1
Lifelong learning and task-oriented dialogue system: what does it mean? Mathilde Veron,Sahar Ghannay,Anne-Laure Ligozat,Sophie Rosset International Workshop on Spoken Dialogue Systems Technology, Apr 2019, Siracusa, Italy Communication dans un congrès hal-02301089v1
Simulating ASR errors for training SLU systems Edwin Simonnet,Sahar Ghannay,Nathalie Camelin,Yannick Estève LREC 2018, May 2018, Miyazaki, Japan Communication dans un congrès hal-01715923v1
Task Specific Sentence Embeddings for ASR Error Detection Sahar Ghannay,Yannick Estève,Nathalie Camelin Interspeech 2018, Sep 2018, Hyderabad, India. ⟨10.21437/Interspeech.2018-2211⟩ Communication dans un congrès hal-01870864v1
Simulation d'erreurs de reconnaissance automatique dans un cadre de compréhension de la parole Edwin Simonnet,Sahar Ghannay,Nathalie Camelin,Yannick Estève XXXIIe Journées d'Etudes sur la Parole (JEP 2018), Jun 2018, Aix-en-Provence, France Communication dans un congrès hal-01757770v1
Représentations de phrases dans un espace continu spécifiques à la tâche de détection d'erreurs Sahar Ghannay,Yannick Estève,Nathalie Camelin XXXIIe Journées d'Etudes sur la Parole (JEP 2018), Jun 2018, Aix-en-Provence, France Communication dans un congrès hal-01757774v1
End-to-end named entity and semantic concept extraction from speech Sahar Ghannay,Antoine Caubrière,Yannick Estève,Nathalie Camelin,Edwin Simonnetet al. IEEE Spoken Language Technology Workshop, Dec 2018, Athens, Greece. ⟨10.1109/slt.2018.8639513⟩ Communication dans un congrès hal-01987740v2
Enriching confusion networks for post-processing Sahar Ghannay,Yannick Estève,Nathalie Camelin Statistical Language and Speech Processing 2017, Oct 2017, Le Mans, France Communication dans un congrès hal-01585768v1
ASR error management for improving spoken language understanding Edwin Simonnet,Sahar Ghannay,Nathalie Camelin,Yannick Estève,Renato de Mori Interspeech 2017, Aug 2017, Stockholm, Sweden Communication dans un congrès hal-01526298v1
Utilisation des représentations continues des mots et des paramètres prosodiques pour la détection des erreurs dans les transcriptions automatiques de la parole S. Ghannay,Y. Estève,Nathalie Camelin,Dutrey Camille,Fabian Santiago Vargaset al. Journée d'Études sur la Parole (2016), Jul 2016, Paris, France. pp.723-731 Communication dans un congrès halshs-01428013v1
Recent improvements on error detection for automatic speech recognition Yannick Estève,Sahar Ghannay,Nathalie Camelin 1st International Workshop on Multimodal Media Data Analytics (MMDA 2016), in Conjunction with the 22nd European Conference on Artificial Intelligence, 2016, The Hague The, Netherlands Communication dans un congrès hal-01433168v1
Word embedding evaluation and combination Sahar Ghannay,Benoit Favre,Yannick Estève,Nathalie Camelin 10th edition of the Language Resources and Evaluation Conference (LREC 2016), 2016, Portorož, Slovenia Communication dans un congrès hal-01433185v1
Evaluation of acoustic word embeddings Sahar Ghannay,Yannick Estève,Nathalie Camelin,Paul Deléglise RepEval@ACL 2016: The 1st Workshop on Evaluating Vector-Space Representations for NLP, 2016, Berlin, Germany Communication dans un congrès hal-01433181v1
Acoustic word embeddings for ASR error detection Sahar Ghannay,Yannick Estève,Nathalie Camelin,Paul Deléglise Interspeech 2016, 2016, San Francisco (CA, USA), Unknown Region Communication dans un congrès hal-01433176v1
Combining continous word representation and prosodic features for ASR error prediction Sahar Ghannay,Yannick Estève,Nathalie Camelin,Camille Dutrey,Fabian Santiagoet al. 3rd International Conference on Statistical Language and Speech Processing (SLSP 2015), 2015, Budapest, Hungary Communication dans un congrès hal-01433203v1
Which ASR errors are hard to detect? Sahar Ghannay,Nathalie Camelin,Yannick Estève Workshop Errors by Humans and Machines in multimedia, multimodal and multilingual data processing (ERRARE 2015), 2015, Sinaia, Romania Communication dans un congrès hal-01433201v1
Word embeddings combination and neural networks for robustness in ASR error detection Sahar Ghannay,Yannick Estève,Nathalie Camelin 2015 European Signal Processing Conference (EUSIPCO 2015), 2015, Nice, France Communication dans un congrès hal-01433210v1
Using Hypothesis Selection Based Features for Confusion Network MT System Combination Sahar Ghannay,Loïc Barrault Third Workshop on Hybrid Approaches to Translation (HyTra), EACL 2014, 2014, Gothenburg, Sweden Communication dans un congrès hal-01433229v1

Poster de conférence (1)

AtomicEval: Evaluation Framework for Atomic Proposition Autonomy with French Propositioner Luc Pommeret,Sophie Rosset,Christophe Servan,Sahar Ghannay 10th Junior Conference on Data Sciences and Engineering, Sep 2025, Gif-sur-Yvette, France. Poster de conférence hal-05414939v1

Pré-publication, Document de travail (2)

Has AlphaFold3 achieved success for RNAs? Clément Bernard,Guillaume Postic,Sahar Ghannay,Fariza Tahi 2025 Pré-publication, Document de travail hal-04911522v1
LIMSI_UPV at SemEval-2020 Task 9: Recurrent Convolutional Neural Network for Code-mixed Sentiment Analysis Somnath Banerjee,Sahar Ghannay,Sophie Rosset,Anne Vilnat,Paolo Rosso 2021 Pré-publication, Document de travail hal-03294371v1

Rapport (1)

Semantic enrichment towards efficient speech representations Gaëlle Laperrière,Ha Nguyen,Sahar Ghannay,Bassam Jabaian,Yannick Estève LISN. 2023 Rapport hal-04425932v1

Thèse (1)

Étude sur les représentations continues de mots appliquées à la détection automatique des erreurs de reconnaissance de la parole Sahar Ghannay Informatique et langage [cs.CL]. Université du Maine, 2017. Français. ⟨NNT : 2017LEMA1019⟩ Thèse tel-01661491v1