Chafik SAMIR Maître de conférences (HDR)Université Clermont Auvergne

Identifiants chercheurs

IdHAL :

chafik-samir

ORCID :

0000-0003-0619-5040

IdRef :

187174601

Présentation

Publications

Rapport (1)

Technical report for: On Studying the Effect of Data Quality on Classification Performance roxane jouseau,Sébastien Salva,Chafik Samir [Technical Report] University of Clermont Auvergne. 2022 Rapport hal-03782760v1

Article dans une revue (25)

A New Metric for Measuring the Intrinsic Quality in Data Collected for Quantitative Classification Roxane Jouseau,Sébastien Salva,C. Samir Lecture Notes in Artificial Intelligence, In press, 2 Article dans une revue hal-04735348v1
Computing regularized splines in the Riemannian manifold of probability measures Tien Tam Tran,Ines Adouani,Chafik Samir ESAIM: Mathematical Modelling and Numerical Analysis, 2025, 59 (1), pp.73-99. ⟨10.1051/m2an/2024056⟩ Article dans une revue hal-04875435v1
A New Bayesian Approach to Global Optimization on Parametrized Surfaces in $\mathbb {R}^{3}$ Anis Fradi,Chafik Samir,Ines Adouani Journal of Optimization Theory and Applications, 2024, ⟨10.1007/s10957-024-02473-8⟩ Article dans une revue hal-04637776v1
Nonparametric Bayesian Regression and Classification on Manifolds, With Applications to 3D Cochlear Shapes Anis Fradi,Chafik Samir,José Braga,Shantanu Joshi,Jean-Michel Loubes IEEE Transactions on Image Processing, 2022, 31, pp.2598-2607. ⟨10.1109/TIP.2022.3147971⟩ Article dans une revue hal-03624630v1
A scalable Matérn Gaussian process for learning spatial curves distributions Tam Tien Tran,Yan Feunteun,Chafik Samir,José Braga Information Sciences, 2022, 614, pp.348-361. ⟨10.1016/j.ins.2022.10.003⟩ Article dans une revue hal-04037655v1
A scalable approximate Bayesian inference for high-dimensional Gaussian processes Anis Fradi,Chafik Samir,François Bachoc Communications in Statistics - Theory and Methods, 2022, 51, pp.5937-5956. ⟨10.1080/03610926.2020.1850793⟩ Article dans une revue hal-03091210v1
Bayesian Regression and Classification Using Gaussian Process Priors Indexed by Probability Density Functions Anis Fradi,Y. Feunteun,Chafik Samir,M. Bakloul,François Bachocet al. Information Sciences, 2021, ⟨10.1016/j.ins.2020.09.027⟩ Article dans une revue hal-02967770v1
Coordinate descent optimization for one-to-one correspondence and supervised classification of 3D shapes Chafik Samir,Wen Huang Applied Mathematics and Computation, 2021, 388, pp.125539. ⟨10.1016/j.amc.2020.125539⟩ Article dans une revue hal-02967821v1
Cochlear shape distinguishes southern African early hominin taxa with unique auditory ecologies J. Braga,C. Samir,Anis Fradi,Yann Feunteun,K. Jakataet al. Scientific Reports, 2021, 11 (1), pp.17018. ⟨10.1038/s41598-021-96543-w⟩ Article dans une revue hal-04061560v1
A Constructive Approximation of Interpolating Bézier Curves on Riemannian Symmetric Spaces Ines Adouani,Chafik Samir Journal of Optimization Theory and Applications, In press, ⟨10.1007/s10957-020-01751-5⟩ Article dans une revue hal-02967797v1
Bayesian cluster analysis for registration and clustering homogeneous subgroups in multidimensional functional data Anis Fradi,Chafik Samir Communications in Statistics - Theory and Methods, 2020, pp.1-17. ⟨10.1080/03610926.2020.1772979⟩ Article dans une revue hal-03017177v1
Comparison of psychometric properties between the Labin, a new electronic dynamometer, and the Jamar: Preliminary results in healthy subjects I. Conforto,Chafik Samir,F. Chausse,A. A Goldstein,B. Pereiraet al. Hand Surgery and Rehabilitation, 2019, 38 (5), pp.293-297. ⟨10.1016/j.hansur.2019.07.009⟩ Article dans une revue hal-02289961v1
Efficacy of diffeomorphic surface matching and 3D geometric morphometrics for taxonomic discrimination of Early Pleistocene hominin mandibular molars José Braga,Veronika Zimmer,Jean Dumoncel,Chafik Samir,Frikkie de Beeret al. Journal of Human Evolution, 2019, 130, pp.21-35. ⟨10.1016/j.jhevol.2019.01.009⟩ Article dans une revue hal-02059270v1
C1 interpolating Bézier path on Riemannian manifolds, with applications to 3D shape space Chafik Samir,Ines Adouani Applied Mathematics and Computation, In press, 348, pp.371-384 Article dans une revue hal-01936414v1
Automatic Detection and Classification of Manufacturing Defects in Metal Boxes O. M. Essid,Chafik Samir,Laga Hamid PLoS ONE, 2018 Article dans une revue hal-01907548v1
A Geometrically Constrained Embedding for An Extrinsic Gaussian Process Chafik Samir,A. Elkhoumri,J. Laasiri Applied and Numerical Harmonic Analysis, 2018 Article dans une revue hal-01917185v1
Statistical model for simulation of deformable elastic endometrial tissue shapes Sebastian Kurtek,Qian Xie,Chafik Samir,Michel Canis Neurocomputing, 2016, 173, pp.36 - 41. ⟨10.1016/j.neucom.2015.03.098⟩ Article dans une revue hal-01598109v1
Mapping and characterizing endometrial implants by registering 2D transvaginal ultrasound to 3D pelvic magnetic resonance images Amir Yavariabdi,Adrien Bartoli,Chafik Samir,Maxime Artigues,Michel Canis Computerized Medical Imaging and Graphics, 2015, 45, pp.11 - 25. ⟨10.1016/j.compmedimag.2015.07.007⟩ Article dans une revue hal-01598206v1
Elastic Shape Analysis of Cylindrical Surfaces for 3D/2D Registration in Endometrial Tissue Characterization Chafik Samir,Sebastian Kurtek,Anuj Srivastava,Michel Canis IEEE Transactions on Medical Imaging, 2014, 33 (5), pp.1035 - 1043. ⟨10.1109/TMI.2014.2300935⟩ Article dans une revue hal-01598208v1
Mesh Parameterization with Generalized Discrete Conformal Maps Colin Cartade,Christian Mercat,Rémy Malgouyres,Chafik Samir Journal of Mathematical Imaging and Vision, 2013, 46 (1), pp.1 - 11. ⟨10.1007/s10851-012-0362-y⟩ Article dans une revue istex hal-01598210v1
A Gradient-Descent Method for Curve Fitting on Riemannian Manifolds Chafik Samir,P.-A. Absil,Anuj Srivastava,Eric Klassen Foundations of Computational Mathematics, 2012, 12 (1), pp.49 - 73. ⟨10.1007/s10208-011-9091-7⟩ Article dans une revue hal-01598215v1
Elastic Shape Models for Face Analysis Using Curvilinear Coordinates Anuj Srivastava,Chafik Samir,Shantanu H. Joshi,Mohamed Daoudi Journal of Mathematical Imaging and Vision, 2009, 33 (2), pp.253-265. ⟨10.1007/s10851-008-0073-6⟩ Article dans une revue hal-00665940v1
An Intrinsic Framework for Analysis of Facial Surfaces Chafik Samir,Anuj Srivastava,Mohamed Daoudi,Eric Klassen International Journal of Computer Vision, 2009, 82, pp.80-95. ⟨10.1007/s11263-008-0187-8⟩ Article dans une revue hal-00665862v1
Elastic Shape Models for Face Analysis Using Curvilinear Coordinates Chafik Samir,A. Srivastava,S. H. Joshi,M. Daoudi Journal of Mathematical Imaging and Vision, 2009, 33 (2), pp.253 - 265. ⟨10.1007/s10851-008-0073-6⟩ Article dans une revue hal-01598224v1
Three-Dimensional Face Recognition Using Shapes of Facial Curves Chafik Samir,A. Srivastava,M. Daoudi IEEE Transactions on Pattern Analysis and Machine Intelligence, 2006, 28 (11), pp.1858-1863. ⟨10.1109/TPAMI.2006.235⟩ Article dans une revue hal-03045765v1

Communication dans un congrès (27)

A Novel Metric for Measuring Data Quality in Classification Applications Jouseau Roxane,Sébastien Salva,C. Samir 16th International Conference on Agents and Artificial Intelligence, Feb 2024, Rome, France. pp.141-148, ⟨10.5220/0012311500003636⟩ Communication dans un congrès hal-04623798v1
A New Framework for Classifying Probability Density Functions Anis Fradi,Chafik Samir ECML, Sep 2023, Turin, France. pp.507-522, ⟨10.1007/978-3-031-43412-9_30⟩ Communication dans un congrès hal-04260521v1
Data quality in the context of classification tasks Roxane Jouseau,Chafik Samir,Sébastien Salva 38èmes journées de la conférence BDA « Gestion de Données – Principes, Technologies et Applications, Oct 2022, Clermont-Ferrand, France, France Communication dans un congrès hal-03903460v1
Bézier curves and C2 interpolation in Riemannian Symmetric Spaces Chafik Samir,Ines Adouani 4th International Conference on Geometric Science of Information, Aug 2019, Toulouse, France. ⟨10.1007/978-3-030-26980-7_61⟩ Communication dans un congrès hal-02289874v1
Learning a Gaussian Process Model on the Riemannian Manifold of Non-decreasing Distribution Functions Chafik Samir,Jean-Michel Loubes,Anne-Françoise Yao,François Bachoc 16th Pacific Rim International Conference on Artificial Intelligence, Aug 2019, Cuvu, Fiji. ⟨10.1007/978-3-030-29911-8_9⟩ Communication dans un congrès hal-02276949v1
A new Manifold Regression Framework for Classifying High-dimensional Data A. Elkhoumri,Chafik Samir,J. Laasiri ISIVC, Nov 2018, Rabat, Morocco Communication dans un congrès hal-01917117v1
Manifold-Based Inference for a Supervised Gaussian Process Classifier Anis Fradi,Chafik Samir,Anne-Franccoise Yao ICASSP 2018 - 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Apr 2018, Calgary, Canada. ⟨10.1109/ICASSP.2018.8461840⟩ Communication dans un congrès hal-01907501v1
Méthode non paramétrique pour l'analyse et la classification des données fonctionnelles(Non-parametric method for analysis and classification of functional data) Papa Mbaye,Anne-Françoise Yao,Chafik Samir Actes de la Conférence Nationale d'Intelligence Artificielle et Rencontres des Jeunes Chercheurs en Intelligence Artificielle (CNIA+RJCIA 2018), 2018, Nancy, France. pp.19--26 Communication dans un congrès hal-02088696v1
Manifold-based inference for a supervised Gaussian process classifier Anis Fradi,Chafik Samir,Anne-Franccoise Yao ICASSP 2018 - 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Apr 2018, Calgary, Canada. pp.4239-4243, ⟨10.1109/ICASSP.2018.8461840⟩ Communication dans un congrès hal-03017187v1
Inférence bayésienne pour l'estimation de déformations larges par champs gaussien : application au recalage d'images multi-modales(Bayesian inference for estimation of large deformations by Gaussian random fields: application to multimodal image registration) Thomas Deregnaucourt,Chafik Samir,Anne-Françoise Yao Actes de la Conférence Nationale d'Intelligence Artificielle et Rencontres des Jeunes Chercheurs en Intelligence Artificielle (CNIA+RJCIA 2018), 2018, Nancy, France. pp.43--49 Communication dans un congrès hal-02088697v1
A Statistical Framework for the Cross-sectional Geometric Variability of Object Shapes and Functional Dynamics Chafik Samir ISI World Statistics Congress, Jun 2017, Marrakech, Morocco Communication dans un congrès hal-01925597v1
Application d'une régression PLS fonctionnelle : recherche de liens entre deux ensembles de variables omiques Anne de La Foye,Anne-Françoise Yao,Marie-Claire Not,Alyssa Imbert,Chafik Samir 49.Journées de Statistique. JDS 2017, 2017 Communication dans un congrès hal-02787426v1
Représentation et interprétation en régression pls fonctionnelle Anne de La Foye,Alyssa Imbert,Anne-Françoise Yao,Chafik Samir,Marie-Claire Not 49.Journées de Statistique. JDS 2017, 2017, Avignon, France Communication dans un congrès hal-02734961v1
An elastic functional data analysis framework for preoperative evaluation of patients with Rheumatoid Arthritis Chafik Samir,Sebastian Kurtek,Anuj Srivastava,Noe Borges IEEE Winter Conference on Applications of Computer Vision, 2016, New York, United States Communication dans un congrès hal-01599080v1
Curves-Driven Smooth Deformation Field for Multimodal Image Registration Chafik Samir,Amir Yavariabdi,Constance Hordonneau Medical Image Understanding and Analysis, 2016, Lincoln, United Kingdom Communication dans un congrès hal-01599083v1
A Regression Model for Registering Multimodal Images Chafik Samir,Thomas Deregnaucourt,Anne-Françoise Yao Medical Image Understanding and Analysis, 2016, Loughbrough, United Kingdom. pp.42 - 47, ⟨10.1016/j.procs.2016.07.008⟩ Communication dans un congrès hal-01599078v1
A Statistical Framework for Elastic Shape Analysis of Spatio-Temporal Evolutions of Planar Closed Curves Chafik Samir,Sebastian Kurtek,Justin Strait,Shantanu H. Joshi 2016 IEEE Conference on Computer Vision and Pattern Recognition Workshops, 2016, Las Vegas, United States Communication dans un congrès hal-01599077v1
Fitting Smooth Paths on Riemannian Manifolds: Endometrial Surface Reconstruction and Preoperative MRI-Based Navigation Antoine Arnould,Pierre-Yves Gousenbourger,Chafik Samir,Pierre-Antoine Absil,Michel Canis Geometric Science of Information, 2015, Paris, France. ⟨10.1007/978-3-319-25040-3_53⟩ Communication dans un congrès hal-01599081v1
A new curves-based method for adaptive multimodal registration Chafik Samir,Samir Khoualed,A. Sarbinowski,Constance Hordonneau International Conference on Image Processing Theory, 2015, Orleans, France Communication dans un congrès hal-01599082v1
Curves-Driven Smooth Deformation Field for Multimodal TVUS-MR Image Registration Amir Yavariabdi,Chafik Samir,Constance Hordonneau Medical Image Understanding and Analysis - MIUA 2015. 19th Annual Conference, 2015, Lincoln, United Kingdom. pp.20--25 Communication dans un congrès hal-02088702v1
Statistical Shape Model for Simulation of Realistic Endometrial Tissue Sebastian Kurtek,Chafik Samir,Lemlih Ouchchane ICPRAM 2014 - Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods, 2014, Loire Valley, France. pp.421--428, ⟨10.5220/0004821904210428⟩ Communication dans un congrès hal-02088698v1
Piecewise-Bézier C1 Interpolation on Riemannian Manifolds with Application to 2D Shape Morphing Pierre-Yves Gousenbourger,Chafik Samir,Pierre-Antoine Absil IEEE ICPR, 2014, tockholm, Sweden. ⟨10.1109/ICPR.2014.700⟩ Communication dans un congrès hal-01599085v1
An augmented representation of activity in video using semantic information Samir Khoualed,Thierry Chateau,Umberto Castellani,Chafik Samir IEEE ICIP, 2014, Paris, France Communication dans un congrès hal-01599084v1
Smooth 2D Coordinate Systems on Discrete Surfaces Colin Cartade,Rémy Malgouyres,Christian Mercat,Chafik Samir 14th International Workshop on Combinatorial Image Analysis, Apr 2011, Nancy, France. pp.59-70, ⟨10.1007/978-3-642-19867-0_5⟩ Communication dans un congrès hal-00659011v1
Simple and flexible mesh parameterization method Colin Cartade,Rémy Malgouyres,Christian Mercat,Chafik Samir 14th International Workshop on Combinatorial Image Analysis, May 2011, Madrid, Spain. pp.157-167 Communication dans un congrès hal-00659008v1
Three-dimensional face recognition using elastic deformations of facial surfaces Mohamed Daoudi,Lahoucine Ballihi,Chafik Samir,Anuj Srivastava 2008 IEEE International Conference on Multimedia & Expo, Jun 2008, Hannover, Germany. pp.97-100 Communication dans un congrès hal-00665585v1
Automatic 3D face recognition using topological techniques Chafik Samir,Jean-Philippe Vandeborre,Mohamed Daoudi IEEE International Conference on Multimedia & Expo (ICME 2005), Jul 2005, Amsterdam, Netherlands Communication dans un congrès hal-00725593v1