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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191114T133000
DTEND;TZID=Europe/Paris:20191114T143000
DTSTAMP:20191104T160826Z
CREATED:20191104T154843Z
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UID:8516-1573738200-1573741800@www.loria.fr
SUMMARY:D3 seminar: Vehicular Networks
DESCRIPTION:The next D3 seminar will take place on November 14th\, 13:30-14:30\, room B013. \nTitle : « Optimized resource management in Cognitive Radio Vehicular Networks with soft and hard reliability guarantees » by Nicola Cordeschi (Sapienza University of Rome) \n  \nAbstract: \nIn current vehicular networks\, the communication traffic flows typically generated by safety applications and routed in downlink over the available backbones are of burst-type\, presenting inter-arrival gaps of non-negligible time duration that can be opportunistically exploited by Vehicular Clients (VCs). Recent studies about the mobile computation offloading in real-life cloud-assisted scenarios point out that the usage of WiFi-based traffic offloading in place of 3G-assisted one may reduce the average energy consumption of current smartphones of about 55%. \nIn this seminar\, we focus on primary–secondary user resource-management controllers in cognitive radio (CR) vehicular networks\, for Vehicle-to-Infrastructure (V2I) based access scenario\, under hard and soft collision constraints\, where VCs equipped with heterogeneous CR-capabilities and energy budgets (playing the role of secondary users) opportunistically exploit the time and frequency holes of the traffic flow generated by the Service Provider\, and compete for acceding to the serving Roadside Units (RSUs) (the primary user of the Internet backbone)\, through WiFi connections. These bandwidth-demanding applications are expected to have a significant impact on the commercial success of Vehicular Communication (VC) and will contribute to accelerate its implementation and deployment. We will discuss the twofold objective of this kind of networks\, i.e. the joint maximization of the aggregate access goodput of the overall network and the average per-client access rates. One of the problems of conventional approaches is that\, even if they fulfill the collision probability constraints\, they may incur in quite long transients\, where the instantaneous collision-rate is definitely too high\, completely destroying the information. \nWe discuss and compare MAC strategies able to take into account the energy budget\, the parameters and the specific fading phenomena of the vehicular wireless channels in the optimization framework\, so as to self-acquire context information about the currently available bandwidth-energy resources\, and quickly adapt to the mobility-induced changes of the state of the vehicular network\, even in the presence of intermittent Vehicular-to-Infrastructure connectivity. We discuss different families of controllers and derive theoretical results about their hierarchy of performances (throughput-gain\, performance bounds\, and not immediately intuitive situations where the more constrained controllers we propose do not present any optimality gap compared to more standard less reliable approaches). After discussing conditions of applicability and advantages of each subclass\, we give some insight into probabilistic fairness constrained problems\, and controllers exploiting cognitive data-fusion techniques and fully distributed implementations able to adapt to unpredictable and abrupt changes of the network statistics\, without requiring any a priori knowledge of the vehicular traffic patterns. \n  \nBio: \nNicola Cordeschi received the PhD degree in Information and Communication Engineering from the Sapienza University of Rome in 2008. He received the master degree (summa cum laude) in Communication Engineering in 2004. His Ph.D. dissertation was on the adaptive QoS Transport of Multimedia over Wireless Connections via cross layer approaches based on the Calculus of Variations. He was Fellow Researcher with the DIET Dept.\, Sapienza University of Rome for ten years\, and Assistant Professor from 2009 to 2016 giving lectures in the topics of wireless communication\, modulation and digital communication\, signal processing\, coding and information theory. His research activity is focused on wireless communications and deals with the design and optimization of high-performance energy-efficient transmission systems for wireless multimedia applications\, distributed and scalable resource allocation and management for vehicular communications\, medium access control\, multi-antenna systems\, cross-layer optimization via the tools of convex optimization\, game theory and competitive optimality. \n 
URL:https://www.loria.fr/event/d3-seminar-vehicular-networks/
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191114T133000
DTEND;TZID=Europe/Paris:20191114T180000
DTSTAMP:20191112T083903Z
CREATED:20191112T083832Z
LAST-MODIFIED:20191112T083903Z
UID:8581-1573738200-1573754400@www.loria.fr
SUMMARY:Sécurité et confiance dans les échanges des données de santé
DESCRIPTION:Le jeudi 14 novembre\, aura lieu à l’École de Chirurgie de Nancy\, la journée de la Fédération Charles Hermite consacrée à la sécurité et la confiance dans les échanges des données de santé. \nProgramme\n13h30-13h45 : Accueil – présentation de la journée\n13h45-14h30 : « Le cadre réglementaire de l’accès aux données de santé (entrepôts et\nrecherches)»\, Mme A. Vidal\, CNIL\n14h30-15h30 : « Protection des images médicales (2D/3D) : insertion de données cachées\, chiffrement sélectif et partage de secret »\, Pr W. Puech\, LIRMM Montpellier\n15h30-15h50 : Pause café\n15h50-16h20 : « Conformité et sécurité des traitements de données de santé »\, Dr Renato\nBrasselet\, PULSY (ex GCS Télésanté Lorraine)\n16h20-16h50 : « Scuba une chaîne d’outils pour la sécurité des objets connectés »\, Pr A. Lahmadi\, équipe RESIST\, LORIA\n16h50-17h45 : Visite école de chirurgie incluant démo plateforme de télémédecine MedVC issue du projet européen HIPERMED (CRAN) et conclusion de la journée. \nL’inscription est gratuite\, merci cependant de confirmer votre participation par mail à nathalie.benito@univ-lorraine.fr. \nLieu :\nÉcole de Chirurgie de Nancy\, (Faculté de Médecine – Bât D – 2ème étage) \nComité d’organisation\nJ-M Moureaux (CRAN)\nS. Mézières (IECL)\nN. Jay (CHRU Nancy\, LORIA) R. Lhoste (LORIA) \n 
URL:https://www.loria.fr/event/securite-et-confiance-dans-les-echanges-des-donnees-de-sante/
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191115T103000
DTEND;TZID=Europe/Paris:20191115T113000
DTSTAMP:20191112T151127Z
CREATED:20191112T151122Z
LAST-MODIFIED:20191112T151127Z
UID:8588-1573813800-1573817400@www.loria.fr
SUMMARY:D3 and D5 Seminar with Danielle Palosi (ETH Zurich)
DESCRIPTION:November\, Friday 15th at 10.30 am in room C005\,  Daniele Palossi from the ETH Zurich will give a talk for the in joint D3-D5 seminar. The general topic will be how to run a convolutionnal neural network on a tiny quadcopter (10cm / 27g) using a new kind of CPU architecture (PULP). The exact title of her talk is : PULP-DroNet: Open Source and Open Hardware Artificial Intelligence for Fully Autonomous Navigation on Nano-UAVs\n\nAfter the seminar\, Daniele will try to setup a demo in the “creativ’lab” arena (bat. C).\n\nAbstract: \n\nNano-size unmanned aerial vehicles (UAVs)\, with few centimeters of diameter and sub-10 Watts of total power budget\, have so far been considered incapable of running sophisticated visual-based autonomous navigation software without external aid from base-stations\, ad-hoc local positioning infrastructure\, and powerful external computation servers.\n\nIn this talk\, we present what is\, to the best of our knowledge\, the first 27g nano-UAV system able to run aboard an end-to-end\, closed-loop visual pipeline for autonomous navigation based on a state-of-the-art deep-learning algorithm\, built upon the open-source Crazyflie 2.0 nano-quadrotor. Our visual navigation engine is enabled by the combination of an ultra-low power computing device (the GAP8 system-on-chip) with a novel methodology for the deployment of deep convolutional neural networks (CNNs). We enable onboard real-time execution of the DroNet state-of-the-art deep CNN at 6 frame-per-second within 64mW and up to 18fps while still consuming on average just 3.5% of the power envelope of the deployed nano-aircraft. Field experiments demonstrate that the system’s high responsiveness prevents collisions with unexpected dynamic obstacles up to a flight speed of 1.5m/s. In addition\, we also demonstrate the capability of our visual navigation engine of fully autonomous indoor navigation on a 113m previously unseen path.
URL:https://www.loria.fr/event/d3-and-d5-seminar-with-danielle-palosi-eth-zurich/
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191128T133000
DTEND;TZID=Europe/Paris:20191128T143000
DTSTAMP:20191114T091955Z
CREATED:20191114T091929Z
LAST-MODIFIED:20191114T091955Z
UID:8605-1574947800-1574951400@www.loria.fr
SUMMARY:Séminaire SSL par Ralf Sasse
DESCRIPTION:Le prochain exposé du séminaire SSL aura lieu jeudi 28 novembre à 13h30\, salle A008. L’orateur sera Ralf Sasse\, de l’ETH Zurich. \n  \nTitle: Seems Legit: Automated Analysis of Subtle Attacks on Protocols that Use Signatures (joint work with Dennis Jackson\, Cas Cremers\, Katriel Cohn-Gordon) \n  \nAbstract: \nThe standard definition of security for digital signatures — existential unforgeability — does not ensure certain properties that protocol designers might expect. For example\, in many modern signature schemes\, one signature may verify against multiple distinct public keys. It is left to protocol designers to ensure that the absence of these properties does not lead to attacks. \nModern automated protocol analysis tools are able to provably exclude large classes of attacks on complex real-world protocols such as TLS 1.3 and 5G. However\, their abstraction of signatures (implicitly) assumes much more than existential unforgeability\, thereby missing several classes of practical attacks. \nWe give a hierarchy of new formal models for signature schemes that captures these subtleties\, and thereby allows us to analyse (often unexpected) behaviours of real-world protocols that were previously out of reach of symbolic analysis. We implement our models in the Tamarin Prover\, yielding the first way to perform these analyses automatically\, and validate them on several case studies. In the process\, we find new attacks on\nDRKey and SOAP’s WS-Security\, both protocols which were previously proven secure in traditional symbolic models. \n  \nLa suite du programme sera prochainement annoncée\, et sera également disponible en ligne au fur et à mesure sur seminaire-securite.loria.fr. \n 
URL:https://www.loria.fr/event/seminaire-ssl-par-ralf-sasse/
LOCATION:A008
CATEGORIES:Séminaire
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