ROCHER , Gérald

From a closed and controlled environment, neglecting all the external disturbances, information processing is now exposed to the complexity and the hazards of the physical environment, open and uncontrolled. Indeed, as a result of the progresses made on wireless communications, energy storage and the miniaturization of computer components, the...

The last decade achievements in computer hardware miniaturization and power consumption reduction has permitted the multiplication of connected devices integrated in everyday life physical objects (chair, table, lamp, etc…) and physical environments (house, building, vehicle, etc…). These devices implement resources interacting with objects...

Background. With the recent advent of the so-called connected objects, today largely present in our surroundings, software applications have an open door to the physical world through sensors and actuators. However, although it offers huge opportunities in many areas (e.g., smart-home, smart-cities, etc.. .), it poses a serious methodological...

Today, a growing amount of physical objects in our surroundings are connected to the Internet and provide the digital world with an interface to the physical world through sensors and actuators. At the heart of this trend, smart-* systems and applications leverage this interface to smartly and seamlessly assist individuals in their everyday...

IoT-based systems have long been limited to collecting field information via sensors distributed at the edge of their infrastructure. However, in many areas such as smart home, smart factory, etc. these systems include devices that interact with the physical environment via common actuators. Throughout the lifecycle of these systems, from...

Semantic web technologies are gaining momentum in the WoT (Web of Things) community for its promising ability to manage the increasing semantic heterogeneity between devices (Semantic Web of Things, SWoT). However, most of the approaches rely on ad-hoc and static knowledge models (ontologies) designed for specific domains and applications....

Semantic web technologies are gaining momentum in the WoT (Web of Things) community for its ability to manage the increasing semantic heterogeneity between devices (Semantic Web of Things, SWoT) in ambient environments. However, most of the approaches rely on ad-hoc and static knowledge models (ontologies) designed for specific domains and...

Smart devices or smart things are widely deployed within environments and have to work in concert to assist users in many domains. The interoperability between things is achieved by the help of Internet and Web of Things. Despite this progress, a main challenge remains to fully manage the heterogeneity of the smart things: handling their...

Semantic web technologies are gaining momentum in the WoT (Web of Things) community for its promising ability to manage the increasing semantic heterogeneity between devices (Semantic Web of Things, SWoT) in ambient environments. However, most of the approaches rely on ad-hoc and static knowledge models (ontologies) designed for specific...

International audience

International audience

By achieving their purposes through interactions with the physical world, Cyber-Physical Systems (CPS) pose new challenges in terms of dependability. Indeed, the evolution of the physical systems they control with transducers can be affected by surrounding physical processes over which they have no control and which may potentially hamper the...

International audience

IoT-based systems, when interacting with the physical environment through actuators, are complex systems difficult to model. Formal verification techniques carried out at design-time being often ineffective in this context, these systems have to be quantitatively evaluated for effectiveness at run-time, i.e., for the extent to which they behave...

IoT-based systems, when interacting with the physical environment through actuators, are complex systems difficult to model. Formal verification techniques carried out at design-time being often ineffective in this context, these systems have to be quantitatively evaluated for effectiveness at run-time, i.e., for the extent to which they behave...

International audience

The development of living labs or smart spaces is a complex and challenging task. The choice of suitable sensors and actuators to deploy in these physical testbeds is difficult without experimentation. Moreover, several challenges still remain in improving and testing new fields of application based on Internet of Things (IoT). In this paper,...

The development of smart spaces is a complex and challenging task. The choice of suitable sensors and actuators to deploy in these physical testbeds is difficult without experimentation. Moreover, several challenges still remain in improving and testing new fields of application based on Web of Things (WoT). In this paper, we present UbiUnity,...

International audience

With increasing interdependencies and evolving threats, maintaining operational continuity in critical systems has become a significant challenge. This paper presents the DYNABIC (Dynamic business continuity of critical infrastructures on top of adaptive multi-level cybersecurity) approach as a comprehensive framework to enhance the resilience...