Publications

2019

• Following and Analyzing a Human Being: On the Continuity and Singularity of an Individual
  
  • Kneubühler Marine
  • Piette Albert
  , 2019, pp.13-43. This chapter addresses three restrictions observed within the social sciences that prevent researchers from seeing human beings as such. It proposes an ontological argument in favor of following and analyzing human individuals. The chapter compares phenomenography with some phenomenological approaches in anthropology in order to insist on the methodological radicality of the former. As reflected in philosophy's classic debates, an anthropology that sets out to be anthropo-focused cannot separate an action, connection or experience from the person who performs and lives it. The chapter provides the methodological guidelines concerning, in particular, the possible ways of beginning a phenomenographic research which focuses on the rapper LK. It focuses on what calls a "videophenomenography", which corresponds to the moment where LK agreed to film himself, alone, during the creation of a verse. One particularly interesting device attempted was the realization of a "videophenomenography", in which LK agreed to film himself, alone, during a moment of creation.
• Computing Possible and Certain Answers over Order-Incomplete Data
  
  • Amarilli Antoine
  • Ba Mouhamadou Lamine
  • Deutch Daniel
  • Senellart Pierre
  Theoretical Computer Science, Elsevier, 2019, 797, pp.42-76. This paper studies the complexity of query evaluation for databases whose relations are partially ordered; the problem commonly arises when combining or transforming ordered data from multiple sources. We focus on queries in a useful fragment of SQL, namely positive relational algebra with aggregates, whose bag semantics we extend to the partially ordered setting. Our semantics leads to the study of two main computational problems: the possibility and certainty of query answers. We show that these problems are respectively NP-complete and coNP-complete, but identify tractable cases depending on the query operators or input partial orders. We further introduce a duplicate elimination operator and study its effect on the complexity results. (10.1016/j.tcs.2019.05.013)
  DOI : 10.1016/j.tcs.2019.05.013
• Tournez méninges
  
  • Zayana Karim
  Au fil des maths, APMEP, 2019. Du repérage sur le cercle à la mesure de l'épaisseur d'une ruban d'adhésif
• Nervous System Exploration Using Tractography To Enhance Pelvic Surgery
  
  • Muller Cécile
  • Delmonte Alessandro
  • Meignan Pierre
  • Peyrot Quoc
  • Virzi Alessio
  • Berteloot Laureline
  • Grevent David
  • Blanc Thomas
  • Gori Pietro
  • Boddaert Nathalie
  • Bloch Isabelle
  • Sarnacki Sabine
  , 2019. Pelvic surgery raises the challenge of preser- vation of nerves that handle urinary, gen- ital and digestive functions, especially in situations where these structures may be modi- fied by tumors or malformations. Recent works on 3D nerve visualization, that rely on cadavers dissections [1, 3] or intra-operative use of probes detecting myelin-binding fluorophores [5], do not provide pre- or post-operative analysis of the pelvic nervous anatomy. Magnetic reso- nance neurography as in [12] requires a slice by slice manual segmentation of the nerves. Dif- fusion MRI, associated with tractography algo- rithms, is currently the only technique allow- ing for in-vivo exploration of the nervous net- work [2] with no need for manual nerve segmen- tation. In contrast to brain imaging that moti- vated a lot of work, only few studies focus on pe- ripheral nerves visualization [9, 10, 14]. In this paper, we propose a method for pelvic tractog- raphy analysis based on patient-specific organ segmentation. It is demonstrated with promis- ing results on a healthy adult subject.
• Etude du développement du système nerveux périphérique pelvien : du foetus à l'enfant porteur de malformations et tumeurs pelviennes
  
  • Meignan P.
  • Muller C.
  • Belle M.
  • Peyrot Q.
  • Delmonte A.
  • Berteloot L.
  • Grevent D.
  • Blanc T.
  • Boddaert N.
  • Chedotal A.
  • Bloch Isabelle
  • Sarnacki S.
  , 2019.
• Knowledge Representation and Model-based Image Understanding
  
  • Bloch Isabelle
  , 2019.
• Audiovisual Analysis of Music Performances: Overview of an Emerging Field
  
  • Duan Zhiyao
  • Essid Slim
  • Liem Cynthia
  • Richard Gael
  • Sharma Gaurav
  IEEE Signal Processing Magazine, Institute of Electrical and Electronics Engineers, 2019, 36 (1), pp.63-73.
• Mathematical Morphology and Musical Representations
  
  • Agon Carlos
  • Andreatta Moreno
  • Atif Jamal
  • Bloch Isabelle
  , 2019.
• Comprehensive review of 3D segmentation software tools for MRI usable for pelvic surgery planning
  
  • Virzi Alessio
  • Muller Cécile
  • Marret Jean-Baptiste
  • Mille Eva
  • Berteloot Laureline
  • Grevent David
  • Boddaert Nathalie
  • Gori Pietro
  • Sarnacki Sabine
  • Bloch Isabelle
  Journal of Digital Imaging, 2019. Background: Patient specific 3D modeling is the first step towards image-guided surgery, the actual revolution in surgical care. Pediatric and adolescent patients with rare tumors and malformations should highly benefit from these latest technological innovations, allowing personalized tailored surgery. This study focused on the pelvic region, located at the crossroads of the urinary, digestive and genital channels with important vascular and nervous structures. The aim of this study was to evaluate the performances of different software tools to obtain patient specific 3D models, through segmentation of magnetic resonance images (MRI), the reference for pediatric pelvis examination. Methods: Twelve software tools freely available on the Internet and two commercial software tools were evaluated using T2-w MRI and diffusion- weighted MRI images. The software tools were rated accordingly to eight criteria, evaluated by three different users: automatization degree, segmentation time, usability, 3D visualization, presence of image registration tools, tractography tools, supported OS, and potential extension (i.e. plugins). Results: A ranking of software tools for 3D modeling of MRI medical images, according to the set of predefined criteria, was given. This ranking allowed us to elaborate guidelines for the choice of software tools for pelvic surgical planning in pediatric patients. The best-ranked software tools were Myrian Studio, ITK-SNAP and 3D Slicer, the latter being especially appropriate if nerve fibers should be included in the 3D patient model. Conclusion: This study proposed a comprehensive review of software tools for 3D modeling of the pelvis according to a set of eight criteria, and delivered specific conclusions for pediatric and adolescent patients that can be directly applied to clinical practice.
• Segmentation of retinal arterial bifurcations in 2D adaptive optics ophtalmoscopy images
  
  • Trimeche Iyed
  • Rossant Florence
  • Bloch Isabelle
  • Pâques M.
  , 2019, pp.1490-1494. The study of vascular morphometry requires segmenting vessels with high precision. Of particular clinical interest is the morphometric analysis of arterial bifurcations in Adaptive Optics Ophthalmoscopy (AOO) images of eye fundus. In this paper, we extend our previous approach for segmenting retinal vessel branches to the segmentation of bifurcations. This enables us to recover the microvascular tree and extract biomarkers that charactarize the blood flow. Segmentation results are shown to be within the range of intra- and inter-user variability, allowing a preliminary study on biomarkers derived from vessel diameter estimates at arterial bifurcations.
• Depth and Depth-Based Classification with R Package ddalpha
  
  • Pokotylo Oleksii
  • Mozharovskyi Pavlo
  • Dyckerhoff Rainer
  Journal of Statistical Software, University of California, Los Angeles, 2019, 91 (5). (10.18637/jss.v091.i05)
  DOI : 10.18637/jss.v091.i05
• Linear codes from weakly regular plateaued functions and their secret sharing schemes.
  
  • Mesnager Sihem
  • Özbudak Ferruh
  • Sinak A.
  Designs, Codes and Cryptography, Springer Verlag, 2019.
• Constructions of optimal locally recoverable codes via Dickson polynomials
  
  • Mesnager Sihem
  • Liu J.
  • Tang D.
  , 2019.
• Study of short and mid-infrared telecom links performance for different climatic conditions
  
  • Sauvage Chloé
  • Robert Clélia
  • Sorrente Béatrice
  • Grillot Frédéric
  • Erasme Didier
  , 2019, pp.18. This study assesses the performance in term of availability of a FSO (Free Space Optics) link for two wavelengths, belonging to atmospheric windows, the standard telecom wavelength 1.55 µm and the mid-infrared wavelength 4 µm. To do so, we compute the transmission rate under various atmospheric conditions, including fog. Using the atmospheric transmission rate from our radiative transfer software MATISSE, the link budget is derived for a simple direct emission and detection system. The source and detector components characteristics, from commercial data-sheet, are considered to compute the reception noise. An estimate of the Bit Error Rate (BER) of the FSO link for the two wavelengths is presented as a function of visibility. Assuming a bit error correction and the corresponding BER value, it is possible to derive the limit of visibility under which the optical link is cut. A weather visibility database has been collected and compiled for a year to obtain the theoretical availability of the FSO system. As an example the availability at Velizy-Villacoublay (France) weather station throughout the year 2017 is used. In this case the theoretical link availability wins 30 hours of operation in January 2017 with the 4 µm optical wavelength, that shows the benefit of using mid-infrared for FSO when fog occurs. (10.1117/12.2533209)
  DOI : 10.1117/12.2533209
• Kindey Cortex Segmentation in 2D CT with U-Nets Ensemble Aggregation
  
  • Couteaux Vincent
  • Si-Mohamed S.
  • Renard-Penna R.
  • Nempont O.
  • Lefevre T.
  • Popoff A.
  • Pizaine Guillaume
  • Villain N.
  • Bloch Isabelle
  • Behr J.
  • Bellin M.-F.
  • Roy C.
  • Rouvière O.
  • Montagne S.
  • Lassau N.
  • Boussel L.
  Diagnostic and Interventional Imaging, Elsevier, 2019, 100, pp.211-217.
• Controllable photon-pair spectral correlations
  
  • Cordier Martin
  • Debord Benoît
  • Gérôme Frédéric
  • Delaye Philippe
  • Benabid Fetah
  • Zaquine Isabelle
  , 2019, pp.Paper EA-7.6. (10.1109/CLEOE-EQEC.2019.8873257)
  DOI : 10.1109/CLEOE-EQEC.2019.8873257
• MRI Atlas of IDH Wild-Type Supratentorial Glioblastoma: Probabilistic Maps of Phenotype, Management, and Outcomes
  
  • Roux Alexandre
  • Roca Pauline
  • Edjlali Myriam
  • Sato Kanako
  • Zanello Marc
  • Dezamis Edouard
  • Gori Pietro
  • Lion Stéphanie
  • Fleury Ariane
  • Dhermain Frédéric
  • Méder Jean-François
  • Chretien Fabrice
  • Lechapt Emmanuèle
  • Varlet Pascale
  • Oppenheim Catherine
  • Pallud Johan
  Radiology, Radiological Society of North America, 2019, pp.190491. (10.1148/radiol.2019190491)
  DOI : 10.1148/radiol.2019190491
• Application of the “descent with mutations” metaheuristic to a clique partitioning problem
  
  • Hudry Olivier
  RAIRO - Operations Research, EDP Sciences, 2019, 53 (3), pp.1083-1095.
• An Turyn-based neural Leech decoder
  
  • Corlay Vincent
  • Boutros Joseph
  • Ciblat Philippe
  • Brunel Loïc
  , 2019. A new decoder for the Leech lattice is presented. This quasi-optimal decoder utilizes a re-encoding paradigm, where candidates are obtained via a shallow neural network. This implies easy parallelization and low latency. The decoder exploits the fact that the Leech lattice is obtained from the direct sum of three polarized Gosset 8-dimensional lattices. This Turyn's construction was used in 2010 by G. Nebe to build the extremal even unimodular lattice in dimension 72 from three copies of the Leech lattice. Thus, we view this work as a first step towards the implementation of an efficient decoder for the Nebe 72-dimensional lattice.
• Strongly regular graphs from weakly regular plateaued functions
  
  • Mesnager Sihem
  • Sinak A.
  , 2019.
• Further study on the maximum number of bent components of vectorial functions
  
  • Mesnager Sihem
  • Zhang F.
  Designs, Codes and Cryptography, Springer Verlag, 2019.
• State-of-the-art on Current Formalisms used in Cyber-Physical Systems Development
  
  • Klikovits Stefan
  • Al-Ali Rima
  • Amrani Moussa
  • Barisic Ankica
  • Barros Fernando
  • Blouin Dominique
  • Borde Etienne
  • Buchs Didier
  • Giese Holger
  • Goulão Miguel
  • Iacono Mauro
  • Leon Florin
  • Navarro Eva
  • Pelliccione Patrizio
  • Vanherpen Ken
  , 2019. (10.5281/zenodo.2533455)
  DOI : 10.5281/zenodo.2533455
• Vertebral rotation estimation from frontal X-rays using a quasi-automated pedicle detection method
  
  • Ebrahimi Shahin
  • Gajny Laurent
  • Vergari Claudio
  • Angelini Elsa D
  • Skalli Wafa
  European Spine Journal, Springer Verlag, 2019, 28, pp.3026–3034. Purpose Measurement of vertebral axial rotation (VAR) is relevant for the assessment of scoliosis. Stokes method allows estimating VAR in frontal X-rays from the relative position of the pedicles and the vertebral body. This method requires identifying these landmarks for each vertebral level, which is time-consuming. In this work, a quasi-automated method for pedicle detection and VAR estimation was proposed. Method A total of 149 healthy and adolescent idiopathic scoliotic (AIS) subjects were included in this retrospective study. Their frontal X-rays were collected from multiple sites and manually annotated to identify the spinal midline and pedicle positions. Then, an automated pedicle detector was developed based on image analysis, machine learning and fast manual identification of a few landmarks. VARs were calculated using the Stokes method in a validation dataset of 11 healthy (age 6–33 years) and 46 AIS subjects (age 6–16 years, Cobb 10°–46°), both from detected pedicles and those manually annotated to compare them. Sensitivity of pedicle location to the manual inputs was quantified on 20 scoliotic subjects, using 10 perturbed versions of the manual inputs. Results Pedicles centers were localized with a precision of 84% and mean difference of 1.2 ± 1.2 mm, when comparing with manual identification. Comparison of VAR values between automated and manual pedicle localization yielded a signed difference of − 0.2 ± 3.4°. The uncertainty on pedicle location was smaller than 2 mm along each image axis. Conclusion The proposed method allowed calculating VAR values in frontal radiographs with minimal user intervention and robust quasi-automated pedicle localization. (10.1007/s00586-019-06158-z)
  DOI : 10.1007/s00586-019-06158-z
• Surrogate Modeling of Stochastic Functions - Application to computational Electromagnetic Dosimetry
  
  • Azzi Soumaya
  • Huang Yuanyuan
  • Sudret Bruno
  • Wiart Joe
  International Journal for Uncertainty Quantification, Begell House Publishers, 2019, 9 (4), pp.351-363. (10.1615/Int.J.UncertaintyQuantification.2019029103)
  DOI : 10.1615/Int.J.UncertaintyQuantification.2019029103
• Procédé de gestion d’un message transmis parune station émettrice d’un système de transport intelligent
  
  • Monteuuis Jean-Philippe
  • Mafrica Stefano
  • Servel Alain
  • Zhang Jun
  , 2019.