| Une formalisation du contexte dans les environnements coopératifs nomades | | BIBAK | Full-Text | 1-8 | |
| Manuele Kirsch-Pinheiro; Marlène Villanova-Oliver; Jérôme Gensel; Hervé Martin | |||
| In this paper, we propose an object oriented model for describing a mobile
user's context inside a Web-based groupware system. These systems are
confronted to the growing use of mobile devices, such as laptops, PDAs or
cellular phones, which requires special context-aware capabilities. Our model
formalizes the context notion, decoupling context and system information, which
consequently reduces the system development complexity. We consider the context
as a set of basic elements that identify the circumstances in which the user is
accessing the system. These elements include elements related to physical
aspects (the user's location and device), as well as those related to the
cooperative process in which the user is involved (group, role, activities,
etc.). Keywords: context-aware systems, cooperative work (CSCW), mobile computing | |||
| Définition du contexte: fonctions de coût et méthodes de sélection | | BIBAK | Full-Text | 9-12 | |
| Stéphane Lavirotte; Diane Lingrand; Jean-Yves Tigli | |||
| This paper targets with applications running on mobile devices. We aim at
developing a formalism and a framework to simplify the development of
applications taking into account the context in which they are running.
Following previous studies from other authors, we extend the notion of context area using distance function with cost function on context space dealing on different modes of selection. We extend the context area formalism to encompass more applications. We demonstrate on a mobile applications: the museum visit. Keywords: context-aware, defining model, definition of context, distance and cost
functions | |||
| Définition et représentation du contexte pour des agents sensibles au contexte | | BIBAK | Full-Text | 13-16 | |
| Oana Bucur; Philippe Beaune; Olivier Boissier | |||
| Developing context-aware applications needs facilities for recognizing and
representing context, reasoning on it and adapting to it accordingly. In what
concerns context representation, the newest and most challenging representation
is the ontological one. The problem is that current ontologies for context are
quite simplistic and do not provide a standard for representing complex context
attributes. In this paper, we propose a context definition and representation
used to construct a context-based agent architecture. The representation we
propose combines the generality provided by ontologies with the complexity
inspired by the object oriented models. The goal of the proposed representation
is to support the deployment of context-aware agents able to learn how to
recognize and adapt to the context of their decisions. Keywords: context ontology, definition of context | |||
| Architecture d'agent sensible au contexte pour la prise de décisions | | BIBAK | Full-Text | 17-20 | |
| Oana Bucur; Philippe Beaune; Olivier Boissier | |||
| Sensing, managing and representing context are necessary capacities for
ubiquitous computing applications, moreover, their components must also be able
to reason and adapt their behavior to the evolution of their physical and
social environment. This paper proposes a multi-agent architecture consisting
of context aware agents able to learn how to discern relevant from non relevant
context on one hand, and to make appropriate decisions based on it on the other
hand. This multi-agent system interacts with a context manager layer, which is
able to answer context-related queries by using an ontological representation
of context. The use of this architecture is illustrated on a test application
for agenda management, using the JADE-LEAP platform on PCs and PocketPCs. Keywords: context, learning, multi-agent systems | |||
| La localisation en intérieur à l'aide de répéteurs GPS vers un système de positionnement universel? | | BIBA | Full-Text | 21-28 | |
| Nel Samama; Alexandre Vervisch-Picois; Marc François | |||
| The need for indoor positioning is obviously increasing with the emergence
of navigation applications [1]. Many techniques are available or under
development, but are very often specific to indoors. Currently, there is no
technique that is applicable outdoors as well as indoors with good enough
accuracy, and this is the point we are giving a solution to. The mobile network
communication approach (GSM or UMTS with E-OTD and O-TDOA) does not provide as
good accuracy as one would like: the typical requirement is between one meter
and some tens of meters, depending on the application. Specific techniques for
indoor positioning (Ultrasound, Bluetooth, UWB, etc.) achieve much better
accuracy values, but are limited to indoor environments.
Current works on indoor satellite-based positioning are addressing Assisted-GPS or pseudo-satellites (pseudolites) [2], [3], [4]. Our technique is different, since it uses GPS repeaters that transmit outdoor signals to indoors [5]. The main advantages of the repeater solutions are the simplicity of the repeaters' hardware and the need for only "software" upgrades for the GPS receivers, both allowing cost effectiveness and cheap deployment. | |||
| Localisation intra-bâtiment multi-technologies: RFID, wifi et vision | | BIBAK | Full-Text | 29-35 | |
| Matthieu Anne; James L. Crowley; Vincent Devin; Gilles Privat | |||
| 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 location sensing, without
requiring dedicated infrastructures. Keywords: context-awareness, location sensing, location-based services, sensor fusion,
smart spaces | |||
| Une architecture hybride pour i'interrogation et i'administration des capteurs | | BIBA | Full-Text | 37-44 | |
| Levent Gürgen; Cyril Labbé; Vincent Olive; Claudia Roncancio | |||
| Sensors have been successfully applied in many fields namely, military, house automation, medical and urban environments where they make information omnipresent. However, much work needs to be done on administration and querying sets of sensors. This paper presents an architecture for management of data streams coming from heterogeneous sensors. Our proposal is inspired by two traditional approaches. The first one is based on networks of "intelligent" sensors allowing data processing in a strongly distributed way. The second approach manages continuous data streams using a centralized or slightly distributed platform. We propose a hybrid approach combining the advantages of current approaches in order to build scalable solutions. | |||
| Une infrastructure à composants pour des applications ubiquitaires | | BIBAK | Full-Text | 45-48 | |
| Areski Flissi; Christophe Gransart; Philippe Merle | |||
| Multiplication of mobile devices and generalized use of wireless networks
imply changes on software applications design and execution. This new challenge
is now called ubiquitous computing. In this paper, we present a software
infrastructure dedicated to ubiquitous contextual services. They are designed
as assemblies of distributed software components and are dynamically discovered
according to end-users' physical location and device capabilities and
automatically deployed on it. We have implemented this software infrastructure
and an example of service on top of the OMG CORBA Components Model and the
OpenCCM open source platform. Keywords: CCM, distributed mobile components and objects, middleware, ubiquitous
computing | |||
| Les usages émergents d'un jeu multijoueurs sur terminaux mobiles géolocalisés: les conséquences interactionnelles des "rencontres d'écran" | | BIBAK | Full-Text | 49-56 | |
| Christian Licoppe; Yoriko Inada | |||
| This communication a case study about the uses in Japan of a multiplayer
location aware mobile game. The gameplay is a collection game where users must
gather sets of "virtual" objects. This case study of a commercially available
location-aware multiplayer game provides a glimpse of what the experience of
inhabiting an augmented urban public space might be like, and of the kind of
social order and emergent "form-of-life" that might characterize it.
The key feature is an onscreen map which features geo-localized players and virtual objects within a radius of 500 meters. This interface allows players to "see" one another onscreen. We analyze the interactional conventions that develop through such mediated encounter. How can "seing" one another in this way, and the geographical proximity it entails, become a pretext to start text-messaging exchanges. We discuss how such encounters involving mutual perception on the screen of the mobile phone are embodied, by analyzing the work users occasionally accomplish to realign their onscreen perspective with their embodied one. Keywords: instant messaging, instant messaging corpus, interaction, location-aware
systems, mobile multiplayer game, mobility, public space, qualitative study,
screen encounters, ubiquity | |||
| Synchronisation dans les jeux multijoueurs sur téléphone mobile | | BIBAK | Full-Text | 57-60 | |
| Sophie Chabridon; Christophe Kodrnja | |||
| This articles surveys some of the synchronisation techniques in use in
multiplayer games on the Internet or on local networks to lessen the effects of
latency. These solutions must be revisited with respect to the additional
constraints encountered in mobile environments, i.e. a higher latency than in
wired networks, but also a fluctuating connectivity that may lead to
involuntary disconnections, and lightweight mobile terminals with limited
computing capacity. Some experimentations using the Java toolkit for mobile
phones (J2ME) are planned after this preliminary study to compare and evaluate
several solutions. Keywords: consistency, disconnection, latency, multiplayer game, synchronisation | |||
| GASP: un intergiciel pour les jeux en réseaux multijoueurs sur téléphones mobiles | | BIBAK | Full-Text | 61-64 | |
| R. Pellerin; F. Delpiano; E. Gressier-Soudan; M. Simatic | |||
| This paper describes an ongoing work. We are designing and implementing a
library of services dedicated to multiplayer on-line games for mobile phones.
This library, called GASP, conforms to Open Mobile Alliance (OMA) v2.0
specifications. It is implemented in Java and offers a server and a client
part. The latter is defined for MIDP 2.0 and DOJA 1.5 J2ME profiles. GASP v1.O
implements partially OMA specification: We are working on a new version more
complete. Keywords: DOJA, MIDP, OMA, game, mobile phones, multiplayer | |||
| Détection de partition pour la gestion de groupes en environnement mobile | | BIBAK | Full-Text | 65-72 | |
| Muhammad Usman Bhatti; Denis Conan | |||
| Wireless networks are more ubiquitous than before and they present a whole
new set of problems with their inception. Disconnection is one of such problems
where mobile terminals can disconnect. Failure is another problem that is
inherited from the distributed systems. The two may create partitions in the
distributed systems which are necessary to be detected for fault tolerance in
mobile environments. In this work, we present a partition detection service
which is interoperable with group communication systems. The main idea of our
proposition is to allow clients of the partition detection service to make the
distinction between the nodes that are faulty and the ones that are only
partitioned or disconnected. Keywords: disconnection, fault tolerance, group management, mobile computing,
partition | |||
| Sûreté de fonctionnement d'applications nomades construites par assemblage de composants | | BIBAK | Full-Text | 73-80 | |
| Audrey Occello; Anne-Marie Dery-Pinna | |||
| Mobile handheld devices allow mobile users to use application services
without taking care of their position. In this context, mobile applications
must cope with service continuity during network disconnections. On the other
hand, component platforms provide mechanisms to adapt applications by modifying
component assemblies and to control these adaptations dynamically. However,
these platforms are dedicated to traditional environments and do not take into
account assembly breaks resulting from disconnections. In this paper, we
propose to handle disconnections as assembly adaptations in order to determine
whether work around components are useful. We extend the Satin model, created
to control component assembly adaptations, so as to control nomad component
disconnections. Keywords: component assembly, disconnections, policy verifications | |||
| Une approche pour une continuité de service pour les utilisateurs de terminaux mobiles | | BIBAK | Full-Text | 81-88 | |
| Nicolas Le Sommer; Hervé Roussain | |||
| In this paper, we present an approach to provide owners of mobile devices
with ubiquitous services. This approach relies on a context-aware deployment of
adaptive services on mobile devices and on the collaboration of these devices.
These services are designed to provide all (or a part) of the functionalities
of the services offered by infrastructure networks equipped with a wireless
extension. This approach aims at cutting off from the connection constraints
binding mobile devices to the access points of infrastructure networks, and
thus to make it possible to use services autonomously. In this paper, we also
present the platform we have implemented in order to validate our approach and
some examples of adaptive services that have been deployed on it. Keywords: adaptive services, context-awareness, deployment, mobile networks | |||
| Sécurisation des flux multimédia adaptables: proposition d'un schéma de signature sur des proxies | | BIBAK | Full-Text | 89-92 | |
| Ahmed Reda Kaced; Jean Claude Moissinac | |||
| In this paper, we present a secured multimedia content delivery system that
aims to deliver an end-to-end authenticity of original content exchanged in an
heterogeneous network while allowing content adaptation by intermediary proxies
between the content providers and the final users. We proposed a system
prototype applicable to multimedia content meta-data written in XML, in which
the signature of the documents rests on W3C XML Signature standard. Keywords: content adaptation, digital signatures, multimedia security | |||
| Authentification par la méfiance dans les systèmes pervasifs | | BIBAK | Full-Text | 93-96 | |
| Rachid Saadi; Jean Marc Pierson; Lionel Brunie | |||
| We present in this paper a solution to the difficult problem of
authentication in pervasive environments. The distrust model developed
hereafter allows a particular site to accept inbound connections from foreign
unknown users, and to bound their access to a certain level in its own
organization. Keywords: access control, authentication, pervasive environment, security, trust | |||
| Sauvegarde coopérative entre pairs pour dispositifs mobiles | | BIBAK | Full-Text | 97-104 | |
| Ludovic Courtès; Marc-Olivier Killijian; David Powell; Matthieu Roy | |||
| We present the features of a collaborative backup service for mobile
devices. This service relies on collaboration among peers in order to provide
data backup and recovery. We identify the expected dependability properties for
such a service. We then survey peer-to-peer collaborative backup systems
described in the literature and identify mechanisms relevant to the mobile
environment. We conclude on the specificities of this environment and identify
future research directions. Keywords: collaboration, data back-up, mobile applications, peer-to-peer | |||
| Data distribution platform for multimedia mobile applications | | BIBAK | Full-Text | 105-109 | |
| Marcel Cremene; Michel Riveill; Iulian Benta | |||
| The new mobile access solutions are more valuable especially due to
multimedia applications available anytime and anywhere. A problem is that the
user needs to manage not only his own data but also the terminal limited memory
and the available networks in conditions of a high terminal and network
diversity, offering different quality for different prices. In this paper, we
propose a platform that helps the user to optimize data management by data
balancing between a mobile client and a fixed server. The goals are: increase
the data availability, reduce the transport costs and duration and avoid
filling the entire terminal memory. The decisions are made by a neural-fuzzy
expert system. Keywords: QoS and transport costs, distribution, expert system, fuzzy logic, mobile
devices, multimedia data, network diversity | |||
| Adaptation des applications au contexte en utilisant les services web | | BIBAK | Full-Text | 111-118 | |
| Tarak Chaari; Frédérique Laforest; André Flory | |||
| The SECAS Project (Simple Environment for Context Aware Systems) is
interested in the adaptation of applications to the context (preferences and
environment of the user, used terminal ...). We aim to develop a platform which
makes the data, the services and the user interface of applications adaptable
to the various context situations. In this domain, researches have concentrated
on how to capture context data and to carry it to the application. Our work
focuses on the impact of context on the application. In this paper, we present
the architecture of SECAS, a new definition of the context, our adaptation
strategy and a case of study in the medical field. Keywords: adaptation, context-awareness, pervasive computing, web services | |||
| Analyse empirique de l'inter-utilisabilité d'un service multisupport Web et téléphone | | BIBAK | Full-Text | 119-127 | |
| Laurent Karsenty; Valérie Botherel | |||
| This report presents the results of an empirical analysis of a multi-device
service which is accessible both from a Web interface on a PC and a spoken
interface over a telephone. The objective of this study was to deepen our
understanding of inter-usability issues related to multi-device services.
Inter-usability is defined as the easiness with which users transfer and adapt
the knowledge they have acquired from previous uses of their service while they
access it with a new device. The results of this study, obtained from a sample
of 20 users achieving a series of use scenarios, highlights the need to keep
data, functions and use procedures as consistent as possible between the
various devices but reveals, at the same time, inter-device inconsistencies
that are not detrimental to the dialogue quality and even, in some cases,
desirable. These results stress the relevance of user's activity analysis in
designing multi-device services and suggest some basic principles that may
drive their design. Keywords: Ubiquité, interaction vocale, modalité d'interaction,
multisupport, utilisabilité, web | |||
| Prise en compte du contexte dans l'étude des applications multimodales sur téléphone mobile | | BIBAK | Full-Text | 129-132 | |
| Marc Mersiol | |||
| This paper describes two usability tests conducted on a multimodal
application. This application is designed for mobile phones. The first test is
done in a laboratory. The second test is done in the street. The aim of this
paper is to present both tests and to compare them. The main result is that
both tests present advantages and drawbacks and that they complement each
other. The in-laboratory test allows more precise analysis. The in-street test
gives the possibility to observe behaviours induced by a richer context. Keywords: methodology, mobile phone, mobility, multimodal application, usability test | |||
| Services Web Adaptés aux utilisateurs nomades | | BIBAK | Full-Text | 133-136 | |
| Céline Lopez-Velasco; Marlène Villanova-Oliver; Jérôme Gensel; Hervé Martin | |||
| Web services, emergent technologies based on standard architecture and
standard languages, allow interoperability between different actors (provider
and requestor of services). However today, no Web service standard takes really
into account the adaptation concept. This is a crucial issue since the users do
not only expect Web services to fulfil their needs but also to be adapted to
their profiles (personal characteristics and environmental ones) and,
especially in the case of nomadic users, to be adapted to both their location
and the limited capabilities of their devices. We propose an extension, called
AWSDL, of the standard of Web services description language (WSDL) in order to
support the Web services adaptation. A module has been developed in order to
evaluate how the AWSDL descriptions of Web services and user requests match. Keywords: mobility, user adaptability, web services | |||
| Un intergiciel par envoi de message économe en énergie basé sur une approche multi-agents: support pour la communication sans fil dans les systèmes complexes physiques ouverts | | BIBAK | Full-Text | 137-143 | |
| J.-P. Jamont; M. Occello | |||
| Open physical complex artificial systems involve wireless autonomous
entities submitted to strength constrained energetic policies. The features of
these systems naturally lead to apply multiagent techniques to ensure both the
autonomy of entities and the best organization of the whole system. We propose
a multiagent approach for wireless communication management and functional
integrity maintaining for such physical multiagent systems using
self-organization mechanisms. We show the performances of this multiagent
approach by comparison to usual communication management based on wireless
protocols used in this area. The genericity of our contribution is highlighted
by the proposition of a middleware layer integrated in agent. We give an
insight to a real world application of instrumentation of an underground
instrumentation using the middleware. Keywords: ad-hoc networks, message oriented middleware (MOM), middleware, multiagent
approach, multiagent systems, self-organization, wireless sensor network (WSN) | |||
| Négociation entre agents au sein de réseaux ad-hoc | | BIBAK | Full-Text | 145-151 | |
| Cosmin Carabelea; Michael Berger | |||
| In the last years the multi-agent paradigm has emerged as a suitable
solution to the challenges of electronic commerce (e-commerce) applications.
However, new problems arise in mobile-commerce scenarios, where agents
negotiating on behalf of their users are deployed on mobile devices.
Negotiation is a time-constraint process and it might be difficult to realize
applications in ad-hoc networks. In this paper we investigate the means to
deploy agents negotiating on handheld devices in ad-hoc networks. We
implemented a test application called ADvertising on MObile Phones (ADOMO)
where an agent executed on a handheld device negotiates and establishes
contracts with commercial agents in its neighborhood. The objects of the
negotiations and contracts are commercial advertisements (ads) to be displayed
on the device's screen in exchange for a small fee / benefit. First, we
describe an implementation of this application and obtained results. In the
second part we show modifications to the system in order to enable the creation
of contracts in a shorter time. The agents were deployed on both a PocketPC and
a smart phone. Keywords: ad-hoc networks, agents, bluetooth, negotiation | |||
| Modèle d'interaction mixte: la réalité mixte à la lumière des modalités d'interaction | | BIBAK | Full-Text | 153-160 | |
| Céline Coutrix; Laurence Nigay; Philippe Renevier | |||
| Mixed Reality seeks to smoothly link the physical and data processing
(digital) environments. In recent years, mixed reality has been the subject of
growing interest. Although mixed reality systems are becoming more prevalent,
we still do not have a clear understanding of this interaction paradigm. This
article introduces a new interaction model called Mixed Interaction model. It
adopts a unifying point of view on mixed reality by considering the interaction
modalities that are involved for defining mixed environments. This article
presents the model after explaining its foundations, applies it to describe and
compare existing systems and shows its generative power for designing new forms
of mixed interaction. Keywords: interaction modality, interaction model, mixed reality, multimodality | |||
| Augmentation de cours et de réunions dans un campus | | BIBAK | Full-Text | 161-168 | |
| Eric Lecolinet; Claudie Faure; Isabelle Demeure; Jean-Claude Moissinac; Stuart Pook | |||
| This paper presents two prototypes for augmenting lectures and small group
meetings that have been developed in the context of a digital campus. The
various aspects that have been developed (augmented whiteboard interaction,
annotation management, multimedia, wireless communication strategies, single
display groupware, user centred conception...) are described and analyzed
relatively to the considered scenarios. Some preliminary observations are
presented and compared to other studies. Keywords: annotation, augmented classroom, digital ink, interactive whiteboard,
mobility, multiple displays, single display groupware, wireless communication
strategies | |||
| Le projet RAMPE: système interactif d'information auditive pour la mobilité des personnes aveugles dans les transports publics | | BIBAK | Full-Text | 169-176 | |
| G. Baudoin; O. Venard; G. Uzan; A. Paumier; J. Cesbron | |||
| In this paper, we present the RAMPE project whose objective is to design,
realize and experiment a system for the assistance and information of blind
people so that they can increase their mobility and autonomy in public
transport. It is intended to equip bus or tramway stops or to be installed in
poles of transport interactions. It is based on smart hand-held devices that
are WiFi enabled Personal Digital Assistant (PDA) able to communicate by a
wireless WiFi connection with fixed equipment in bus or tram stations. The
smart hand-held devices can present and filter vocal messages, they can adapt
themselves to the type of information system available at the stations, they
can react to real-time information sent by the stations. A special care has
been given to the design of the man machine interface and to the management of
priorities in the real-time vocal information application. Keywords: WiFi, dispositif d'assistance, personal digital assistant, personne aveugle,
système d'information voyageurs temps réel | |||
| 2M: un espace de conception pour i'interaction bi-manuelle | | BIBAK | Full-Text | 177-184 | |
| Gilles Bailly; Laurence Nigay; David Auber | |||
| In the physical world, most human activities involve the use of two hands.
As part of ubiquitous computing that aims at combining the physical and the
digital worlds, understanding how to design two-handed interaction is therefore
important. This article presents a new design space for two-handed interaction,
called 2M. The 2M design space takes its foundations in two complementary
research domains: multimodal interaction and two-handed interaction. On the one
hand we enrich the multimodal design space to take into account the roles of
the two hands. On the other hand, we extend the two-handed interaction design
space to cover the temporal as well as fusion aspects of multimodal
interaction. This article presents the resulting 2M design space and
demonstrates its descriptive power. We finally study the generative capacity of
2M for designing new forms of two-handed interaction in the context of the
NavGraphe project that focuses on the interactive manipulation of very large
biological structures (e.g., RNA structures). Keywords: bimanual, design space, multimodality, two-handed interaction | |||
| Composition flexible de services d'objets communicants | | BIBAK | Full-Text | 185-192 | |
| Mathieu Vallée; Fano Ramparany; Laurent Vercouter | |||
| Les environnements d'informatique pervasive mettent en oeuvre de nombreux
objets communicants. L'ensemble de ces objets forme un système
d'informatique ubiquiste dont une interface intuitive et flexible doit
être l'environnement même d'un utilisateur. Chacun de ces objets
offrant des services spécifiques nombreux et variés, leur
contrôle et leur suivi par les utilisateurs devient problématique
et induit une surcharge cognitive. Dans cet article, nous présentons une
approche qui vise à composer automatiquement des services fournis par
des objets communicants de façon à proposer aux utilisateurs des
services de haut niveau. La prise en compte d'informations de contexte pour
adapter le processus de composition est une des caractéristiques
essentielles de ce système, et constitue une étape indispensable
à la construction intelligente de services de haut niveau, et donc
à une véritable intelligence ambiante.
Pervasive computing environments involve a variety of smart devices and home appliances. Communities of these devices form a ubiquitous information processing system to which the physical environment should provide an intuitive and flexible user interface. Since each of these devices offers specific services, their number and variety make it difficult for users to control and monitor them all and tend to overload humans cognitive load. In this paper, we present an approach aimed at automatically composing device services, so that users can benefit from higher level services. We also ensure that context information such as users' locations and preferences is properly taken into account within the composition process. We believe that building mechanisms for synthesizing context-aware high level services is a mandatory step towards Ambient Intelligence. Keywords: adaptation au contexte, ambient intelligence, composition de services,
context-awareness, intelligence ambiante, semantic services, service
composition, services sémantiques | |||
| Techniques de couplage de bureaux: Ambient-Desktop comme illustration | | BIBAK | Full-Text | 193-200 | |
| Nicolas Barralon; Viet-Tung Nguyen; Gaëtan Rey | |||
| Coupling interaction resources is key to ubiquitous computing by permitting
users to construct their own interactive spaces. In this article, we examine
the requirements related to coupling and we propose a set of middleware
techniques (I-AM and the Contextors infrastructure) to support coupling between
the interaction resources of conventional workstations. We illustrate the
application of these techniques with Ambient-Desktop, a desktop that complies
to the look and feel of current graphical desktops extended with novel HCI
features for addressing coupling. Keywords: coupling, human computer interaction, interaction context, interaction
resources, interaction technique, software architecture, ubiquitous computing | |||
| Détection automatique des groupes d'interactions | | BIBAK | Full-Text | 201-204 | |
| Maisonnasse Jérôme; Brdiczka Oliver | |||
| This work brings a new perception to intelligent environments for human
activity recognition. To understand human activities, we need to differentiate
users concerned and their interpersonal links. We propose a new group
interaction detection tool based on an assumption that conversational turn
taking is synchronized inside groups. We assess HMM-based and algorithmic
approaches to build a detector which is able to segment interaction groups from
speech detection. Both approaches show good results thus confirm the
conversational hypothesis. Keywords: conversationnal analysis, groups of interaction clustering, intelligent
environment, markov model, speech detection, ubiquitous computing | |||
| Atelier « mise en oeuvre d'UPnP avec OSGi » | | BIBAK | Full-Text | 205 | |
| This workshop proposes to study the development and the deployment of UPnP
devices and UPnP control points with OSGi. Keywords: OSGi, UPnP, architecture orientée service | |||
| Atelier de conception et d'evaluation de systèmes interactifs adaptables et/ou mixtes en evolution: CESAME | | BIBA | Full-Text | 207 | |
| Gaelle Calvary; Anne-Marie Déry; Emmanuel Dubois; Dominique L. Scapin | |||
| The workshop copes with the increasing mixity and evolutivity of interactive systems. It aims at providing a common ground for envisioning and engineering such systems. | |||
| Tutorial « informatique mobile et pervasive » | | BIBA | Full-Text | 209 | |
| Michel Adiba; Patricia Serrano Alvarado; Laurence Nigay; Michel Riveill | |||
| L'Informatique Mobile définit un vaste domaine d'études pluridisciplinaires. Elle s'inscrit dans le mouvement de l'informatique pervasive, ubiquitaire et évanescente. La multiplication des ordinateurs de poche et des assistants personnels, la généralisation de l'utilisation des cartes à puces et la multiplication des systèmes embarqués dans des objets d'usage courant (automobile, télévision, etc.) sont des témoins de cet essor. L'explosion de la téléphonie mobile constitue un autre exemple significatif de la formidable extension de ce domaine. | |||