Publications

2019

• Urban surface recovery through graph-cuts over SAR tomographic reconstruction
  
  • Rambour Clément
  • Denis Loïc
  • Tupin Florence
  • Oriot Hélène
  , 2019. The understanding of tomograms can be a difficult task when the observed scene is complex. The Synthetic Aperture RADAR (SAR) ranging acquisition induces geometrical distortions depending on the local slope of the back-scattering surface. Over dense urban areas, this particular geometry produces tilted facades instead of straight buildings. Moreover the high dynamic in SAR images of urban areas may lead to 3-D representation with very bright voxels eclipsing other echoes. In this paper we present a graph-cut approach adapted to any tomographic reconstruction technique to segment the urban surface in a 3-D tomographic reconstruction. Results on real data from a stack of 40 TerraSAR-X images are presented. (10.1109/JURSE.2019.8809001)
  DOI : 10.1109/JURSE.2019.8809001
• SAR image despeckling using pre-trained convolutional neural network models
  
  • Yang Xiangli
  • Denis L.
  • Tupin Florence
  • Yang Wen
  , 2019. Despeckling is a longstanding topic in synthetic aperture radar (SAR) imaging. Many different schemes have been proposed for the restoration of SAR images. Among the different possible strategies, the methods based on convolutional neural networks (CNNs) have shown to produce state-of-the-art results on SAR image restoration. However, to learn an effective model it is necessary to collect a large number of speckle-free SAR images for training. To bypass this problem, we propose to directly use pre-trained CNN models on additive white Gaussian noise (AWGN) and transfer them to process SAR speckle. To include such CNNs Gaussian denoisers, we use the multi-channel logarithm approach with Gaussian denoising (MuLoG). Experimental results, both on synthetic and real SAR data, show the method achieves good performance. (10.1109/jurse.2019.8809023)
  DOI : 10.1109/jurse.2019.8809023
• Digital post-distortion of radio receivers and analog-to-digital converters
  
  • Minger Bryce
  • Vansebrouck Raphael
  • Jabbour Chady
  • Fuché Loïc
  • Ferré Guillaume
  • Dallet Dominique
  • Desgreys Patricia
  • Jamin Olivier
  , 2019, pp.125-169.
• Evaluating the artifacts of SIGCOMM papers
  
  • Saucez Damien
  • Iannone Luigi
  • Bonaventure Olivier
  Computer Communication Review, Association for Computing Machinery, 2019, 49 (2), pp.44-47. A growing fraction of the papers published by CCR and at SIGCOMM-sponsored conferences include artifacts such as software or datasets. Besides CCR, these artifacts were rarely evaluated. During the last months of 2018, we organised two different Artifacts Evaluation Committees to which authors could submit the artifacts of their papers for evaluation. The first one evaluated the papers accepted by Conext’18 shortly after the TPC decision. It assigned ACM reproducibility badges to 12 different papers. The second one evaluated papers accepted by CCR and any SIGCOMM-sponsored conference. 28 papers received ACM reproducibility badges. We report on the results of a short survey among artifacts authors and reviewers and provide some suggestions for future artifacts evaluations. (10.1145/3336937.3336944)
  DOI : 10.1145/3336937.3336944
• Time or frequency interleaved analog-to-digital converters
  
  • Bonnetat Antoine
  • Le Duc Han
  • Beydoun Ali
  • Dallet Dominique
  • Ferré Guillaume
  • Hode Jean-Michel
  • Desgreys Patricia
  • Jabbour Chadi
  , 2019, pp.171-225.
• Nonlinear modeling
  
  • Vansebrouck Raphaël
  • Pham Dang-Kièn Germain
  • Jabbour Chadi
  • Desgreys Patricia
  , 2019, pp.27-63. (10.1049/PBCS040E_ch2)
  DOI : 10.1049/PBCS040E_ch2
• Digital predistortion
  
  • Baudoin Geneviève
  • Venard Olivier
  • Pham Dang-Kièn Germain
  , 2019, pp.65-123. (10.1049/PBCS040E_ch3)
  DOI : 10.1049/PBCS040E_ch3
• Let there be Chaining: How to Augment your IGP to Chain your Services
  
  • Wion Adrien
  • Bouet Mathieu
  • Iannone Luigi
  • Conan Vania
  , 2019, pp.1-9. (10.23919/IFIPNetworking.2019.8816831)
  DOI : 10.23919/IFIPNetworking.2019.8816831
• Joint Data-Prefetching and Broadcast-Scheduling for Hybrid Vehicular Networks
  
  • Berri Sara
  • Zhang Jun
  • Bensaou Brahim
  • Labiod Houda
  , 2019.
• Low-Complexity MRC for ESPAR Based on the Polynomial Expansion of the Admittance Matrix
  
  • Garcia Juan Carlos Bucheli
  • Kamoun Mohamed
  • Sibille Alain
  , 2019, pp.1-6. (10.1109/ICC.2019.8761229)
  DOI : 10.1109/ICC.2019.8761229
• Thermal dependence of the emission linewidth of 1.52-μm single mode InAs/InP quantum dot lasers
  
  • Duan J.
  • Dong B.
  • Huang H.
  • Lu Z. G
  • Poole P. J
  • Grillot F.
  , 2018, 10560, pp.1-2. This paper experimentally investigates the thermal dependence of the emission linewidth of 1.52-μm single mode InAs/InP quantum dot lasers. Using a distributed feedback cavity made with symmetric antireflection coatings, a minimum linewidth of 300 kHz is unveiled. This narrow line is found rather constant with the injection current and the temperature range (293 K-313 K). However, under certain operating conditions, a linewidth rebroadening is also observed, which may be attributed to the spectral hole burning and to the variations of the alpha-factor with the temperature and bias current. Nevertheless, these results confirm the potential of this technology for manufacturing low-phase noise oscillators for coherent optical communications. (10.1109/ICIPRM.2019.8819315)
  DOI : 10.1109/ICIPRM.2019.8819315
• Relative intensity noise of silicon-based quantum dot lasers
  
  • Duan J.
  • Huang H.
  • Jung D.
  • Norman J. C
  • Bowers J. E
  • Grillot F.
  , 2018, 3, pp.1-2. This work experimentally investigates the relative intensity noise (RIN) of semiconductor quantum dot (QD) lasers epitaxially grown on silicon. Owing to the low threading dislocations density and the p-modulation doped GaAs barrier layer in the active region, a RIN level as low as-150 dB/Hz at 9 GHz is demonstrated. The results show that the p-doping decreases the high-frequency RIN and the damping factor. In the latter, a damping factor up to 30 GHz at three times the threshold is extracted from the RIN spectrum along with a K-factor of 1.7 ns. These results pave the way for high speed and low noise QD devices for future integrated photonics technologies. (10.1109/ICIPRM.2019.8819368)
  DOI : 10.1109/ICIPRM.2019.8819368
• Photon-pair generation in hollow-core photonic-crystal fiber
  
  • Cordier Martin
  , 2019. Photon pair sources are an essential component of the emerging quantum information technology. Despite ingenious proposals being explored in the recent years based on either second order nonlinear processes in crystals and waveguides or on third order processes in fibers, limitations remain, due to losses and specifically coupling losses in the former case and due to Raman generation in silica, giving rise to a broad spectrum noise in the latter. These limitations have been challenging to lift because of the limited alternative nonlinear materials that fulfil the conditions for the generation of bright and high fidelity photon pairs in integrable photonic structures. In the present project, we develop a new and versatile type of photonic architecture for quantum information applications that offers access to a variety of nonlinear optical materials that are micro-structured in optical fiber forms to generate photon pairs, without the drawback of Raman scattering and with a large design parameter-space. Indeed, with a careful design of the HCPCF along with the appropriate choice of fluid, one can (i) control the dispersion and the transmission to generate photons with the most favourable phase-matching condition over a large spectral range, (ii) adjust the fibre core size and/or shape to enhance nonlinearity or the coupling efficiency with other fibres, (iii) totally suppress the Raman effect in monoatomic gases for instance or have only narrow and separated Raman lines that can thus be easily separated from the useful parametric lines in liquids.
• Intensity Noise and Pulse Oscillations of an InAs/GaAs Quantum Dot Laser on Germanium
  
  • Zhou Yueguang
  • Duan Jianan
  • Huang Heming
  • Zhao Xuyi
  • Cao Chunfang
  • Grillot Frederic
  • Wang Cheng
  IEEE Journal of Selected Topics in Quantum Electronics, Institute of Electrical and Electronics Engineers, 2019.
• Conception et optimisation d'un absorbant large bande à métamatériaux avec des matériaux composites structuraux
  
  • Lepage Anne Claire
  • Rance Olivier
  • Begaud Xavier
  • Soiron Michel
  • Barka André
  • Parneix Patrick
  , 2019. Dans cet article, nous démontrons qu'il est possible de remplacer les couches diélectriques d'un absorbant à métamatériaux initialement conçu avec des matériaux RF par des matériaux composites structuraux, i.e. renforcés de fibres. Ces matériaux, compatibles avec les procédés de fabrication du domaine naval militaire ont été réalisés et mesurés. L'effet des différentes couches de l'absorbant sur la bande passante est détaillé. Après optimisation de l'épaisseur de chaque couche grâce à un modèle analytique, l'absorbant présente un coefficient de réflexion inférieur à-14 dB dans la bande 4.6 GHz-17.2 GHz en incidence normale, pour une épaisseur totale de 8.9 mm. Le comportement de l'absorbant en incidence oblique est aussi discuté.
• MOOC sécurité des réseaux : un apprentissage massif de la sécurité par la théorie et la pratique
  
  • Paul Olivier
  • Blanc Gregory
  • Carron Bruno
  • Charbonnier Nicolas
  • Chrisment Isabelle
  • François Jérôme
  • Hotz Damien
  • Jaillon Philippe
  • Khatoun Rida
  • Lazrag Marwan
  • Masmoudi Souha
  • Laurent Maryline
  • Kiennert Christophe
  , 2019, pp.1-4. Le MOOC Sécurité des Réseaux, destiné à l'apprentissage massif à distance de la sécurité dans les réseaux informatiques, s'adresse à un public ayant des prérequis légers en informatique et des prérequis plus solides en réseaux (DNS, adressage, routage, ARP, ICMP). Il vise sur 5 semaines, à raison de 5h par semaine environ, à connaître, comprendre, pratiquer, mettre en oeuvre et/ou configurer plusieurs aspects clés de la sécurité dans les réseaux, telles que les menaces, les attaques réseaux, les techniques de filtrage, les VPNs, la détection d'intrusions, les architectures de sécurité, l'analyse de risques, les textes réglementaires, les normes, l'audit, etc. Grâce aux nombreux travaux pratiques proposés dans une machine virtuelle (environnement Docker sous GNU/Linux), les apprenants sont amenés à expérimenter les menaces (ex : ICMP redirect, ARP spoofing, détournement de session TCP), et à configurer plusieurs mécanismes de sécurité classiques (filtrage, VLAN, NAT, IPsec, TLS, IDS/IPS, certificats électroniques). L'originalité de ce MOOC tient dans le champ thématique restreint à la sécurité des réseaux, un niveau d'expertise élevé pour un apprentissage à distance, et l'offre conséquente de TPs proposés.
• Retroperitoneal fibrosis in on-going anti-PD-1 immunotherapy detected with [18F]-FDG PET/CT
  
  • Moreau Aurélie
  • Giraudet Anne Laure
  • Mognetti Thomas
  • Kryza David
  European Journal of Nuclear Medicine and Molecular Imaging, Springer Verlag (Germany) [1976-....], 2019. (10.1007/s00259-019-04352-1)
  DOI : 10.1007/s00259-019-04352-1
• Étalons coplanaires CCPW pour la mesure des paramètres S en mode mixte
  
  • Bui Pham
  • Allal Djamel
  • Ziadé Francois
  • Bergeault Eric
  , 2019.
• Antenne Lentille directive en azimut et sectoriel en élévation en gamme millimétrique.
  
  • Nsengiyumva Florence
  • Migliaccio Claire
  • Lanteri Jérôme
  • Hadjloum Massinissa
  • Cosson Bruno
  • Begaud Xavier
  , 2019, pp.2. Dans le cadre du développement d’un système radarmillimétrique pour des applicationsliées à la sécurité, une antenne lentille fonctionnant à 94GHz a été conçue et simulée. Afin de satisfaire à l’application, le diagramme de rayonnement de cette dernière devait posséder un diagramme directif en azimut avec des contraintes sur le niveau des lobes secondaires et sectoriel en élévationtout en étant simple à fabriquer et robuste.Un cornet ayant un diagramme de rayonnement limitant le niveau des lobes secondaires a également été développé
• Revisiting Opinion Dynamics with Varying Susceptibility to Persuasion via Non-Convex Local Search
  
  • Chan T-H. Hubert
  • Liang Zhibin
  • Sozio Mauro
  , 2019, pp.173-183. We revisit the opinion susceptibility problem that was proposed by Abebe et al. [1], in which agents influence one another's opinions through an iterative process. Each agent has some fixed innate opinion. In each step, the opinion of an agent is updated to some convex combination between its innate opinion and the weighted average of its neighbors' opinions in the previous step. The resistance of an agent measures the importance it places on its innate opinion in the above convex combination. Under non-trivial conditions, this iterative process converges to some equilibrium opinion vector. For the unbudgeted variant of the problem, the goal is to select the resistance of each agent (from some given range) such that the sum of the equilibrium opinions is minimized. Contrary to the claim in the aforementioned KDD 2018 paper, the objective function is in general non-convex. Hence, formulating the problem as a convex program might have potential correctness issues. We instead analyze the structure of the objective function, and show that any local optimum is also a global optimum, which is somehow surprising as the objective function might not be convex. Furthermore, we combine the iterative process and the local search paradigm to design very efficient algorithms that can solve the unbudgeted variant of the problem optimally on large-scale graphs containing millions of nodes. (10.1145/3308558.3313509)
  DOI : 10.1145/3308558.3313509
• Learning How to Correct a Knowledge Base from the Edit History
  
  • Tanon Thomas Pellissier
  • Bourgaux Camille
  • Suchanek Fabian M.
  , 2019. The curation of a knowledge base is a crucial but costly task. In this work, we propose to take advantage of the edit history of the knowledge base in order to learn how to correct constraint violations. Our method is based on rule mining, and uses the edits that solved some violations in the past to infer how to solve similar violations in the present. The experimental evaluation of our method on Wikidata shows significant improvements over baselines. (10.1145/3308558.3313584)
  DOI : 10.1145/3308558.3313584
• Hybrid and Optical Packet Switching Supporting Different Service Classes in Data Center Network
  
  • Minakhmetov Artur
  • Ware Cédric
  • Iannone Luigi
  , 2020, LNCS-11616, pp.516-527. Optical Packet Switching is a prominent technology proposing not only a reduction of the energy consumption by the elimination of numerous optical-electrical-optical conversions in electronic switches, but also a decrease of network latencies due to the cut-through nature of packet transmission. However, it is adversely affected by packet contention, preventing its deployment. Solutions have been proposed to tackle the problem: addition of shared electronic buffers to optical switches (then called hybrid opto-electronic switches), customization of TCP protocols, and use of different service classes of packets with distinct switching criteria.In the context of data center networks we investigate a combination of said solutions and show that the hybrid switch, compared to the optical switch, boosts the performance of the data center network. Furthermore, we show that introducing a “Reliable” service class improves performance for this class not only in the case of the hybrid switch, but also brings the optical switch to performance levels comparable to that of the hybrid switch, all the while keeping other classes’ performance on the same level. (10.1007/978-3-030-38085-4_44)
  DOI : 10.1007/978-3-030-38085-4_44
• Continuous Analytics of Web Streams
  
  • Tommasini Riccardo
  • Keskisärkkä Robin
  • Calbimonte Jean-Paul
  • Blomqvist Eva
  • Valle Emanuele Della
  • Bifet Albert
  , 2019, pp.1323-1325. (10.1145/3308560.3320088)
  DOI : 10.1145/3308560.3320088
• A Music Structure Informed Downbeat Tracking System Using Skip-chain Conditional Random Fields and Deep Learning
  
  • Fuentes Magdalena
  • Mcfee Brian
  • Crayencour Helene-Camille
  • Essid Slim
  • Bello Juan P.
  , 2019. (10.1109/icassp.2019.8682870)
  DOI : 10.1109/icassp.2019.8682870
• Compressive Sensing with Applications to Millimeter-wave Architectures
  
  • Ghauch Hadi
  • Kim Taejoon
  • Fischione Carlo
  • Skoglund Mikael
  , 2019, pp.7834-7838. (10.1109/ICASSP.2019.8683604)
  DOI : 10.1109/ICASSP.2019.8683604