Gilles Privat

Gilles Privat
Orange Labs · M2M, Internet of Things, Smart Cities

PhD

About

99
Publications
27,546
Reads
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411
Citations
Introduction
Gilles Privat currently works as a Senior Scientist with Orange Innovation IT & Services (formerly Orange Labs). His current research interests are in knowledge engineering, graph-based information models, cyber-physical systems and digital twins
Additional affiliations
January 2010 - October 2015
Orange Labs
Position
  • Senior Scientist & Project leader
January 2007 - present
Orange Labs
Position
  • Senior Scientist & Project leader
June 2000 - December 2006
France Télécom R&D
Position
  • Senior Researcher
Education
October 1983 - October 1986
Télécom ParisTech
Field of study
  • Signal and systems Theory
October 1978 - June 1981
Télécom ParisTech
Field of study
  • System theory

Publications

Publications (99)
Preprint
Full-text available
This paper provides a rationale and generic data model for a comprehensive graph-based multi-level and multi-scale digital-twin-like description of cyber-physical systems, such as cities, buildings or factories and their environments. We have implemented a fully operational proof-of-concept platform for this, called Thing'in, built around a graph d...
Chapter
Most data available on the Web do not conform to the RDF data model. A number of tools/approaches have been developed to encourage the transition to RDF. Manual and automatic tools/approaches tend to be complex and rigid. On the other hand, semi-automatic tools can hide and automate complex tasks while enhancing flexibility by solicitating human ex...
Conference Paper
Full-text available
The Web of Things need not be restrained to a mere software-engineering construct or interoperability enabler. Viewed as a graph, the WoT may become the scaffolding of a comprehensive model of physical environments, capturing relevant aspects of their intertwined structural, spatial and behavioral dependencies As such, it can support context-rich m...
Conference Paper
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Semantic graphs should not obliterate the preexisting use of graphs as models for physical systems. They need to complement these graphs but should not subsume them.
Conference Paper
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Property graphs" have come to be widely used as the common me-ta-model of most graph databases. The anterior prevalence of the RDF meta-model, its rich suite of tools and its openness to the linked data cloud, make it essential to ensure the consistency and potential conversion between these two models. We propose to give property graphs a formal s...
Conference Paper
Full-text available
Context Information Management (CIM) platforms have tended to rely on mostly hierarchical information models with weak semantics and predefined APIs, falling short of the requirements for interoperation with other platforms and flexibility of data utilization and federation. In order to improve cross-domain federation capabilities for existing CIM...
Conference Paper
Full-text available
Achieving the interoperability of Internet of Things (IoT) platforms raises a key challenge, as most current IoT applications are vertically integrated within separate silos without horizontal communications. In response to this, we propose the Semantics Extractor, a framework for automatic extraction of semantic graphs from REST interfaces exposed...
Conference Paper
Full-text available
Internet of Things (IoT) data are mostly cloistered in closed IoT in-frastructures and vertically integrated applications, failing to leverage the potential interlinking of corresponding APIs. We propose a data model based on JSON-LD, in which semantics are added to Web of Things (WoT) APIs, enhancing their interoperability and evolvability by the...
Conference Paper
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Control-oriented IoT applications that require time-sensitive information about the entities they control need to operate in their proximity, from the edge domain of the network, rather than from a remote cloud. We describe how different types of data filtering and consolidation may get integrated in a generic IoT infrastructure in order to support...
Conference Paper
Full-text available
The deep structure of Internet of Things (IoT) environments understood as complex Cyber-Physical Systems (CPS) is made up of all interwoven relationships of physical actuation, sensing, proximity, grouping and containment between their constituent subsystems. We describe and assess three solutions for capturing and exposing this structure as a pers...
Conference Paper
Full-text available
Drawing requirements and models from reactive and real-time systems, we propose a self-configurable data mediation infrastructure for Smart Environments and the Internet of Things, showing how it can be used to effect discrete control in smart home environments by mediating and adapting generic rules through finite-state-machine models drawn from a...
Conference Paper
Full-text available
Drawing requirements and models from reactive and real-time systems, we propose a self-configurable data mediation infrastructure for Smart Environments and the Internet of Things, showing how it can be used to effect discrete control in smart home environments by mediating and adapting generic rules through finite-state-machine models drawn from a...
Conference Paper
Full-text available
New application domains of cyber-physical systems such as smart homes, buildings and cities call for moving away from custom design, using common platforms and adopting widely used methodologies and abstractions from general-purpose distributed computing, adapting them to real-time constraints. We propose a common framework that should make it poss...
Conference Paper
Full-text available
New application domains of control, such as the Internet of Things (IoT) and Smart Environments, require generic control rules enabling the systematization and the automation of controller synthesis. We present preliminary results in our approach for the generation of Discrete Supervisory Controllers for these applications. A general modeling frame...
Conference Paper
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This paper reports on the work undertaken in the Finseny (Future Internet for Smart Energy) project on Smart Buildings as both domains of the Smart Grid and small-scale Future Internet platforms. A comprehensive set of use cases for building energy management have been identified, described here through high-level uses cases that are transversal to...
Conference Paper
Full-text available
The Internet of Things (IoT) requires self-configuration capacities, for which there is a need for design techniques for predictable controllers, and automation in the construction of these controllers. The Feedback Computing approach to autonomic systems proposes to exploit control techniques for this. We present preliminary results in our approac...
Article
Full-text available
RESUME. De nouveaux domaines d'application du contrôle, comme dans l'Internet des Objets et les Environnements Intelligents, requiè rent le recours à des rè gles de contrôle gé né riques permettant la systématisation et l'automatisation de la synthèse des contrôleurs. Nous pré sentons les ré sultats pré liminaires de notre approche pour la gé né ra...
Conference Paper
Full-text available
Positing the extension of Smart Grids to Smart Energy Management Systems in relevant domains, we propose a framework and a set of mechanisms for the identification, self-configuration and representation of a comprehensive range of energy-relevant entities in these target domains. These entities get represented by proxy software components, making u...
Article
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This article proposes a theoretical and practical extension of the IoT, taking in all "things" that can be sensed by sensors, without requiring them to be fitted with a tag or a digital network interface. These physical entities, whatever they may be (legacy appliances, passive items, subsets of physical space), become nodes of a broader network, e...
Article
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This article proposes a conceptual extension of sensor–actuator networks, taking in all “things” that can be sensed by sensors, or acted upon by actuators, in various physical modalities. These things become nodes of a web, graph, or virtual network overlaid on the existing sensor–actuator networks that make up the “Internet of Things”. The paper e...
Chapter
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Conference Paper
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We propose a mechanism and system for the identification, self-configuration, monitoring and control of non-networked home devices through a shared backplane of networked sensors and actuators. The re- sulting generic home abstraction layer interfaces to all kinds of physical entities of the home through a software proxy, as if they were state-of-...
Conference Paper
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A key challenge for home/building automation applications, especially energy management, is to enable the indirect integration of legacy home/building appliances and building components that do not have a network connection to the home/building network, to make it possible to monitor and partially control them. We propose a mechanism and system for...
Conference Paper
Full-text available
2nd Workshop on eeBuildings Data Models, CIB W078 ‐ W102, Sophia Antipolis ‐ France
Chapter
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This chapter presents an overview of the domain of ambient intelligence, by first situating it in a broad perspective of technological evolution and then by describing it more analytically in two complementary ways: through a review of the different "threads" of research that have been woven into this cross-disciplinary field, and by confronting ke...
Conference Paper
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Ambient communication adapts interpersonal remote communication to the activities of users and supports interactions that come as close as possible to face to face communication. Elements of both user, physical environment and system context are taken into account to support adaptation of the communication setup and to offer implicit and intuitive...
Conference Paper
Full-text available
Ambient communication supports remote inter-personal communication by emulating social proximity-based protocols and arbitrates smoothly between face to face and remote communication. The position of users is taken into account together with other context elements supporting implicit context-aware interaction, using the distributed interaction and...
Conference Paper
Full-text available
RESUME Cet article décrit un concept et des mécanismes de présen-tation s'adaptant à l'attention de l'utilisateur pour des in-formations asynchrones (événements, notifications) asso-ciées à un système de communication ambiante. Ce sys-tème utilise des interfaces réparties dans un espace interac-tif et une infrastructure logicielle répartie d'acquis...
Conference Paper
Full-text available
We propose a software framework that augments context data with a range of assorted confidence/reputation metadata for dimensions such as security, privacy, safety, reliability, or precision, defined according to a generic context confidence ontology. These metadata are processed through the network of federated distributed software services that s...
Conference Paper
Full-text available
Ambient communication may be construed as ambient intelligence applied to communication services, either person-to-person or information-to-person. The time of users is the only scarce resource in an era of unlimited network bandwidth. Ambient communication spares it and adapts to it by exploiting in a context-adaptive way the complete spectrum of...
Chapter
Full-text available
Evolution des interfaces humaines, vers les interfaces diffuses Du point de vue des utilisateurs, ce qui devrait caractériser l'informatique diffuse est qu'il ne s'agit pas d'informatique…Informatique au sens étroitement classique du terme, c'est-à-dire un univers d'information déconnecté du monde réel, auquel on accède par les intermédiaires exclu...
Chapter
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This paper attempts to evaluate quantitatively the performance tradeoffs involved in applying object-oriented software methodologies to regionbased representations of images and image sequences. Spatial or temporal multiscale representations of these regions are used as an example for the different levels of granularity that can be encapsulated sep...
Conference Paper
Full-text available
Indoor location-based applications have strong precision and scalability requirements that usually cannot be met by any single location-sensing technology. Combining the strong identification of RF-based location sensing with the accuracy of computer vision-based-tracking provides a powerful new solution for multi scale and multi-target indoor loca...
Conference Paper
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We present the development and experimentation of a distributed system for pervasive video communication on gigabit networks. We have implemented an event-based control mechanism for the management of video sensors and their flexible dynamic configuration based on a service discovery protocol. Tests have shown that distributed acquisition of video...
Conference Paper
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Diverse location-sensing technologies must be integrated to meet the requirements of generalized location-awareness in ubiquitous computing environments. A formal and comprehensive ontology -based modelling of location makes it possible to derive and inte-grate consistent high-level location information from sparse, het-erogeneous location data. De...
Chapter
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Les objets communicants (Privat 2002) évoquent peut être d'abord, au travers d'une prolifération de gadgets plus ou moins futiles, l'apparence concrète et séductrice de ce qui pourrait n'être qu'une surenchère commerciale. Il s'agit en fait d'une évolution bien plus fondamentale, partant de la mise en réseau généralisée de ces objets pour aller jus...
Conference Paper
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In this paper, we present an ambiance sharing application based on multimedia streams. The functionalities toward an ambient communication are studied. We described also the architecture of our application and give the results of its experimentations in various contexts. From these works, we define a new application' architecture based on a flexibl...
Article
Full-text available
Cette mission s'est déroulée du 27 au 31 Octobre 2003. Elle faisait suite à une précédente mission "objets communicants, aspects matériels" qui s'était déroulée en Juin 2003. Elle visait à en compléter les conclusions sous les aspects réseaux et plates-formes.Des laboratoires différents ont été visités par les deux missions, pour offrir un panorama...
Conference Paper
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We present a platform and a set of position-adaptive basic services for i ndoor,ambient,intelligence environments. This suite of Jini™-based services implement,various instances of implicitinteraction based on the user’s position, mediated by a handheld personal device. An indoor navigation system has been,implemented,as a prototype application for...
Conference Paper
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An infrastructure combining several complementary models of physical space (set-theoretic, topological, metric, affine/euclidean, symbolic/semantic) makes it possible to support location-based services at all relevant scales, in all kinds of smart devices environments A template for this infrastructure may draw a conceptual analogy to the layered a...
Article
Smart Devices are more than just a new generation of fancy gizmos for nomadic users. They embody a fundamental evolution of information technology, characterized by stronger interaction between the information/communication world and the physical environment. This evolution is made possible by the ubiquity of wireless MAN, LAN or PAN network access...
Article
Full-text available
Beyond the hype of "smart devices", "ubiquitous/pervasive/proactive computing", "things that think", “disappearing computer”, "context-aware environments" or "ambient intelligence", a broad new agenda of IT research is currently taking shape. This paper attempts to extract the gist of converging technological evolutions underlying these apparently...
Article
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Going by such catchy and auspicious names as “smart (networked) devices”, “ubiquitous/pervasive/proactive computing”, “things that think”, “net-aware embedded devices” or “massively sensed and actuated structures” (depending on the author's bias), a new agenda, or, at least, a new domain of information technology is currently taking shape. This pap...
Article
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Asynchronous dynamics are introduced for the iterative computation of morphological image filters. We propose a fine-grain asynchronous algorithmic-architectural model that exploits these new possibilities to improve the convergence efficiency of such operators over standard sequential-recursive or parallel-synchronous update modes. We conclude wit...
Article
Full-text available
Asynchronous dynamics are introduced for the iterative computation of morphological image filters. We propose a fine-grain asynchronous algorithmic- architectural model that exploits these new possibilities to improve the convergence efficiency of such operators over standard sequential-recursive or parallel-synchronous update modes. We conclude wi...
Article
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Graphics systems have long been using standard libraries or APIs to insulate applications from implementation specifics. The same approach is applicable to natural image representations based on object primitives, such as proposed for MPEG4 standardization. The rendering of these image objects can be hidden behind APIs and supported either in hardw...
Article
Full-text available
The design of a fine grain asynchronous VLSI cellular array is presented. It is shown how asynchronism can be exploited at both functional and structural levels. A joint algorithmic-architectural study has led to the fabrication of an integrated circuit including 16*16 processing elements. The data and control paths are designed using a standard ce...
Conference Paper
Full-text available
We present a fine-grain asynchronous 16*16 VLSI array processor. It demonstrates how asynchronism can be exploited both at functional and architectural levels. Our design flow is based on a standard cells approach that combines Differential Cascode Voltage Switch Logic blocks and standard CMOS gates. The chip has been fabricated using the CNET/SGS-...
Article
Full-text available
The design of a fine-grain asynchronous VLSI array processor is presented. It demonstrates how asynchronism can be exploited both at functional and architectural levels. A joint algorithm-architecture study that has resulted in the design of a 16×16 processor array is described, and the design flow used to implement both data-paths and control part...
Article
Full-text available
: We present a fine-grain asynchronous 16*16 VLSI array processor. It demonstrates how asynchronism can be exploited both at functional and architectural levels. Our design flow is based on a standard cells approach that combines Differential Cascode Voltage Switch Logic blocks and standard CMOS gates. The chip has been fabricated using the CNET/SG...
Conference Paper
Full-text available
The cellular iterative computation model bears upon three broad-ranging application domains: pixel-level image processing, finite-difference approximation of continuum problems (boundary value PDEs) in computational physics, and cellular automata as discrete models of complex locally-interacting systems, aimed at probing their emergent collective p...
Conference Paper
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Expressing with fuzzy logic the local transition functions of a cellular automata network combines the flexibility of numeric processing with the explicitness and transparency of logic rules, within the framework of an emergent-cooperative computational model. Implementing fuzzy processing elements as the nodes of such nets places heavy emphasis on...
Conference Paper
Full-text available
Relaxation algorithms are discrete-time dynamical systems tamed for problem-solving purposes. We are interested in systems with a 2D-structured state-space and neighborhood dependencies, such as can be formally represented by locally-coupled automata networks. These models are applicable in fields ranging from image processing to computational phys...
Conference Paper
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Array processors tailored to mesh-based iterative algorithms benefit from shifting to an asynchronous mode. An architecture implementing this functionally asynchronous state-space update with self-timed elementary processors can dispense with the overhead of classical data exchange protocols and offer a flexible hierarchical mapping of the state la...
Article
Recursive-filter-based structures have been recently put forward as a potentially beneficial alternative to the more conventional two-band FIR QMF filter banks for applications in image subband analysis/synthesis. Zero-phase causal/anticausal IIR all-pass filter pairs make it possible to achieve perfect reconstruction, with a markedly better comput...