Grégoire Lefebvre
- Orange Labs
Présentation
Grégoire Lefebvre a obtenu un diplôme d'Ingénieur en Mathématiques Appliquées à l’INSA de Rouen, France, en 2000, puis un doctorat en Sciences Cognitives, financé par France Telecom R&D, à l’Université de Bordeaux, France, en 2007. Depuis 2007, il travaille chez Orange Research, où il est actuellement Chercheur Senior en Intelligence Artificielle pour les Télécommunications. Il est co-auteur de plus de 50 publications et 30 brevets. Il a notamment été relecteur pour les revues IEEE Transactions on Neural Networks and Learning Systems, IEEE Transactions on Pattern Analysis and Machine Intelligence, et Elsevier NeuroComputing. Il a co-supervisé 6 étudiants en Master, 9 doctorants et 6 chercheurs postdoctoraux. Ses domaines de recherche incluent l’apprentissage profond, les communications sémantiques et le traitement des signaux sociaux.
Publications
Publications
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MEFA-MS: Attention-Based U-Net for Pedestrian and Vehicle DetectionICMV 2025 - Eighteenth International Conference on Machine Vision, Oct 2025, Paris, France. pp.1-8 |
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MEFA: Multimodal Image Early Fusion with Attention Module for Pedestrian and Vehicle DetectionVISAPP 2025 - 20th International Conference on Computer Vision Theory and Applications, Feb 2025, Porto, Portugal. pp.610-617, ⟨10.5220/0013236000003912⟩ |
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Semantic Communication for Person Re-IdentificationIEEE Virtual Conference on Communications, Nov 2025, Virtual conference, France |
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Compacting Semantic Matryoshka Representations with Product QuantizationWorkshop AI native Communications Systems - towards Integrated Intelligent and Highly Efficient Systems at the 2025 IEEE Global Communications Conference, Dec 2025, Taipei, Taiwan |
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Transformer-Based Self-Supervised Learning for Emotion Recognition26th International Conference on Pattern Recognition (ICPR 2022), Aug 2022, Montreal, Canada |
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Robust Variational Autoencoders and Normalizing Flows for Unsupervised Network Anomaly DetectionThe 36th International Conference on Advanced Information Networking and Applications (AINA), 2022, Apr 2022, Sydney, Australia |
RADON: Robust Autoencoder for Unsupervised Anomaly DetectionThe 14th International Conference on Security of Information and Networks, SINCONF 2021, Dec 2021, Edinburgh, United Kingdom. ⟨10.1109/SIN54109.2021.9699174⟩ |
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Improved CNN-based Magnetic Indoor Positioning System using Attention Mechanism2021 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Nov 2021, Lloret de Mar, Spain. pp.1-8, ⟨10.1109/IPIN51156.2021.9662602⟩ |
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Network Traffic Modeling For IoT-device Re-identification2020 International Conference on Omni-layer Intelligent Systems (COINS), Aug 2020, Barcelona, France. pp.1-6, ⟨10.1109/COINS49042.2020.9191376⟩ |
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Personalized Posture and Fall Classification with Shallow Gated Recurrent Units32nd IEEE CBMS International Symposium on Computer-Based Medical Systems, Jun 2019, Cordoue, Spain. ⟨10.1109/CBMS.2019.00034⟩ |
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Routine Modeling with Time Series Metric Learning28th International Conference on Artificial Neural Networks, Sep 2019, Munich, Germany. ⟨10.1007/978-3-030-30484-3_47⟩ |
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Attitude Estimation for Posture Detection in eHealth Services31st IEEE Computer-Based Medical Systems, Jun 2018, Karlstad, Sweden |
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Inferring Availability for Communication in Smart Homes Using ContextPerCom 2018 - IEEE International Conference on Pervasive Computing and Communications, Mar 2018, Athènes, Greece. pp.1-6 |
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Human Activity Recognition Using Place-Based Decision Fusion in Smart Homes10th International and Interdisciplinary Conference, CONTEXT 2017, Jun 2017, Paris, France. pp.137 - 150, ⟨10.1145/1865987.1866010⟩ |
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Social Intelligence Modeling using Wearable Devices22nd International Conference on Intelligent User Interfaces (IUI 2017), Mar 2017, Limassol, Cyprus. pp.331 - 341, ⟨10.1145/3025171.3025195⟩ |
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A Priori Data and A Posteriori Decision Fusions for Human Action Recognition11th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP), Mar 2016, Roma, Italy |
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Polar Sine Based Siamese Neural Network for Gesture RecognitionInternational Conference on Artificial Neural Networks, Sep 2016, Barcelona, Spain. ⟨10.1007/978-3-319-44781-0_48⟩ |
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Siamese Neural Network based Similarity Metric for Inertial Gesture Classification and RejectionInternational Conference on Automatic Face and Gesture Recognition, May 2015, Ljubljana, Slovenia. pp.1-6, ⟨10.1109/FG.2015.7163112⟩ |
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3D gesture classification with convolutional neural networksInternational Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2014, Florence, Italy. pp.5432 - 5436, ⟨10.1109/ICASSP.2014.6854641⟩ |
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BLSTM-RNN based 3D Gesture ClassificationArtificial Neural Networks and Machine Learning, ICANN 2013, 23rd International Conference on Artificial Neural Networks, Sep 2013, Sofia, Bulgaria |
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Learning a bag of features based nonlinear metric for facial similarityAdvanced Video and Signal Based Surveillance (AVSS), 2013 10th IEEE International Conference on, Aug 2013, Krakow, Poland. ⟨10.1109/AVSS.2013.6636646⟩ |
Multi-touch based video selection with an audio emotional curvethe 2012 ACM annual conference extended abstracts, May 2012, Austin, United States. pp.2561, ⟨10.1145/2212776.2223836⟩ |
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Coupling Gestures with Tactile Feedback: A Comparative User Studythe 7th Nordic Conference, Oct 2012, Copenhagen, Netherlands. pp.380, ⟨10.1145/2399016.2399075⟩ |
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Gesture based interaction for visually-impaired peoplethe 6th Nordic Conference on Computer Human Interaction, Oct 2010, Reykjavik, France. pp.809, ⟨10.1145/1868914.1869035⟩ |
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OverView: Physically-based Vibrotactile Feedback for Temporal Information Browsingthe 11th International Conference on Mobile Human Computer Interaction, Sep 2009, Bonn, France. pp.1, ⟨10.1145/1613858.1613910⟩ |
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A Probabilistic Self-Organizing Map for Facial RecognitionPattern Recognition, 2008. ICPR 2008. 19th International Conference on, Dec 2008, Tampa, United States. ⟨10.1109/ICPR.2008.4760955⟩ |
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Facial biometry by stimulating salient singularity masksAdvanced Video and Signal Based Surveillance, 2007. AVSS 2007. IEEE Conference on, Sep 2007, London, United Kingdom. ⟨10.1109/AVSS.2007.4425363⟩ |
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On the Basis Updating Rule of Adaptive-Subspace Self-Organizing Map (ASSOM)Artificial Neural Networks - ICANN 2006, 16th International Conference,, Sep 2006, Athens, Greece. ⟨10.1007/11840817_46⟩ |
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Supervised Image Classification by SOM Activity Map ComparisonPattern Recognition, 2006. ICPR 2006. 18th International Conference on, Aug 2006, Hong Kong, China. ⟨10.1109/ICPR.2006.1094⟩ |
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Objectionable Image Detection by ASSOM CompetitionImage and Video Retrieval, 5th International Conference, CIVR 2006, Jul 2006, Tempe, United States. ⟨10.1007/11788034_21⟩ |
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A Cascade of Unsupervised and Supervised Neural Networks for Natural Image ClassificationImage and Video Retrieval, 5th International Conference, CIVR 2006, Jul 2006, Tempe, United States. ⟨10.1007/11788034_10⟩ |
Deep Neural Networks for Indoor Geomagnetic Field Fingerprinting with Regression ApproachProceedings of the 22nd Engineering Applications of Neural Networks Conference, 3, Springer International Publishing, pp.178-189, 2021, Proceedings of the International Neural Networks Society, ⟨10.1007/978-3-030-80568-5_15⟩ |