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UBIMOB Tables of Contents: 0405060809111213

Proceedings of the 2004 French-speaking conference on Mobility and ubiquity computing

Fullname:Proceedings of the 1st French-speaking conference on Mobility and ubiquity computing
Editors:Anne-Marie Dery-Pinna; Alain Giboin
Location:Nice, France
Dates:2004-Jun-01 to 2004-Jun-03
Standard No:ISBN 1-58113-915-2; ACM DL: Table of Contents hcibib: UBIMOB04
  1. Usages (Usage)
  2. Applications
  3. Infrastructure & composants I (Infrastructure and Components)
  4. Conception (Design)
  5. Déconnexion et réconciliation de données (Disconnection and reconciliation of data)
  6. Localisation et contexte (Localization and Context)
  7. Interactions innovantes I (Innovative Interactions)
  8. Interactions innovantes II (Innovative Interactions)
  9. Infrastructure & composants II (Infrastructure and Components)
  10. Infrastructure et composants III (Infrastructure and Components)

Usages (Usage)

Usability and MMS uses on mobile phones BIBAKFull-Text 1-4
  Rachel Demumieux; Farid Habbouche
This paper presents studies carried out in France Telecom R&D on MMS's service (multimedia messaging) available on compatible mobile phones since September 2002. With the MMS, the users can send and receive photos, pictures and sound. Two user tests enabled us to identify some difficulties of use. Currently, we carry out a global study (qualitative and quantitative) in order to understand the uses. The first results show that MMS are especially employed for private communication. The users send pictures (shooting with camera phone) and text. The camera phone users, who don't send MMS estimate that the service is too expensive. Moreover, people around about them have not always a compatible MMS mobile phone.
Keywords: MMS, camera, ergonomics, mobile phone, qualitative study, quantitative study, usability test
Observation and capture of multimodal interaction in mobile situations BIBAKFull-Text 5-8
  Moustapha Zouinar; Marc Relieu; Pascal Salembier; Guillaume Calvet
This paper describes a method and a data collection infrastructure for capturing data about the use of a mobile multimodal system in the field, under realistic conditions. The infrastructure includes instrumentation worn by the user to capture his perspective while moving, a means of capturing a wider view of the context and a multimodal data logger.
Keywords: interaction data capture, mobility, multimodal systems, observation of activity
Towards an evaluation of usages for the integration of nomad devices in the aeronautic maintenance domains BIBAKFull-Text 9-12
  Claude Reyterou
Since the last years, several works show that the use of nomad devices is possible in the aeronautic maintenance due to the improvement of information (the contain of data and the adaptation of supports can satisfy the needs and constraints). However, evaluation of usages is necessary to realize a good integration of technologies. In this paper, we show a first thought on analysis of usage allowing us to take into account the whole issues regarding to integration of nomad devices in the aeronautic maintenance activities.
Keywords: aircraft, integration, maintenance, nomad devices, usages
A definition of mobility BIBAKFull-Text 13-16
  Alan Lelah; Karine Grein-Cochard
This study proposes to give a definition of mobility that can be used as a reference in the field of telecommunications. It also presents the methodology which was employed to get to this definition.
Keywords: facteurs humanis, sociologie


AuthenLink: a user-centred authentification system for a secure mobile com BIBAFull-Text 17-20
  Christina Braz
We envision an environment where humans communicate directly with computers without additional authentication inputs like passwords, passphrases, PINs (Personal Identification Numbers), biometrics, or other existent authentication systems; and where humans network (intercommunicate) continually with wireless devices. In this paper, we propose a new RFID-based wireless authentication system, not yet implemented, called "AuthenLink" designed for mobile devices, coupled with a new approach to distinguishing characteristics to authenticate people (authentication factor): something you CONVEY. The utmost purpose of this paper is to provide an ease, user-centred and acceptable security authentication system especially against fraud, counterfeit, and theft for the wireless domain (cellular phones and personal digital assistants PDAs). Our authentication system achieves its goal through a microprocessor chip (ChipTag) computer implanted under human skin. This Chip Tag is able to authenticate user's access to systems, connect them wirelessly, through the Radio Frequency Identification (RFID) technology [5], and also enable mobile users to perform mobile transactions.
Interactivity in large class: state of Art and DRIM-AP project BIBAKFull-Text 21-24
  B. David; F. Mercier; R. Chalon; O. Delotte; J. P. Berthet
The aim of this paper is to present how to make teaching in large class livelier and more participative by using wireless devices. This paper describes the challenge of teaching in large class, presents the state of the art and introduces DRIM-AP project (French acronym for Multiple Interactive Radio Devices and Participative Theaters) at Ecole Centrale of Lyon.
Keywords: E-learning, HCI, interactivity, mobility, virtual classroom
PortaNum: a reading aid for a classroom blackboard BIBAKFull-Text 25-28
  Marianne Douard; Joseph Colineau; Loïc Goasduff
Developed by THALES, PortaNum is a reading aid which allows visually impaired people to read texts (located at a distance) on a classroom blackboard or slides presented in a meeting. The useful system for distance vision consists in a camera connected to a laptop and an image digital processing software. The image processing improves the legibility, corrects the defects of lighting, increases contrasts, enlarges the image and then offers quality and optimal visual comfort.
Keywords: HCI, PortaNum video magnifier, image processing, low vision, new technologies, reading aid, visually impaired people
Providing information to the users of public transportation by combining Wi-Fi network and satellite communications BIBAKFull-Text 29-35
  Christophe Gransart; Sébastien Ambellouis; Jean Rioult
In this article, we present the results of a research project aiming at providing information in real time to the users of public transportation. We show that new innovating services can be developed and can offer an access, with a good quality of service (with an average or big bandwidth), to information, multi-media contents and databases. This project merges innovating technologies to transmit information: Wi-Fi network inside of the buses and satellite communications to update on board information. This article describes the software choices and indicates the future improvements for the system.
Keywords: CORBA middleware, Wi-Fi, geo-location, ground surface transports, satellite

Infrastructure & composants I (Infrastructure and Components)

ICARE: a component-based approach for multimodal interaction BIBAKFull-Text 36-43
  Jullien Bouchet; Laurence Nigay; Didier Balzagette
Mobile and ubiquitous systems support multiple interaction techniques such as the synergistic use of active modalities (speech, gesture, etc.) and passive modalities (gaze, localization of a user, etc.). The flexibility they offer results in an increased complexity that current software development tools do not address appropriately. In this paper we describe a component-based approach, called ICARE, for specifying and developing interfaces combining active and passive modalities. Our approach relies on two types of components: (1) elementary components that describe pure modalities (active and passive) and (2) composition components (Complémentarité, Redundancy and Equivalence) that enable the designer to specify combined usage of modalities. The designer graphically assembles the ICARE components and the code of the multimodal user interface is automatically generated. Although the ICARE platform is not fully developed, we illustrate the applicability of the approach with the implementation of three mobiles systems: two GeoNote systems and one prototype of cockpit commands of Rafale (French military plane).
Keywords: HCI, I/O devices, active and passive modalities, interaction languages, mobility, multimodality, software components, ubiquitous
Generation of location-aware services for mobile applications BIBAKFull-Text 44-47
  Gustavo Rossi; Silvia Gordillo; Robert Laurini
This paper deals with the problem of generating context-aware services for mobile applications. First, we present a discussion about designing problems during the development of software product based on location, by means of a simple scenario, namely a campus. Then a set of design structure is presented, based on the object-oriented model, allowing the adaptation of the behaviour of geographic objects for mobile users. Finally, some final remarks are given. Finalement, quelques remarques finales sont données.
Keywords: context-awareness, design, ecolution, mobile applications, mobility, pervasive applications, spatial context
Component-based architecture and implicit interactions: wearable computing application BIBAKFull-Text 48-51
  Daniel Cheung-Foo-Wo; Jean-Yves Tigli; Michel Riveill
This study of software architecture for wearables aims at showing that component-based architecture can be well suited for component reusability and rapid prototyping in constraint resource environments. But some component assembly might produces side effects inside the resulting application. Indeed, drawbacks can be limited by using an architecture based on the decomposition of components into behavioural structures and implicit interaction between components. This approach is validated by a wearable application for visual disabled.
Keywords: component, software architecture, wearable computer
An adaptative mechanism for communicating with mobile objects BIBAKFull-Text 52-59
  Denis Caromel; Fabrice Huet
As middlewares are more and more spanning over larger networks, towards world-wide grid computing, communicating with mobile objects in a scalable and reliable manner becomes an important and difficult issue. This paper proposes a parametric protocol for such communications. Based on Time To Live (TTL) forwarders, and Time To Update (TTU) mobile objects, it allows to get the best of those two well-known techniques (forwarders, servers). As a parametric protocol, it can be adapted to various network conditions.
Keywords: TTL, TTU, adaptation, communication, middleware, mobilité, objets mobiles
User interface development environment based on components: assets for mobility BIBAKFull-Text 60-65
  Anne-Marie Dery-Pinna; Jérémy Fierstone
In this paper we present our UI development environment based on components. The UI is considered as a technical service of a business component just like security or persistence. The dialog between UI and business components is managed by an interaction/coordination service that allows the reconfiguration of components without modifying them. A UI component merging service handles dynamic assembly of corresponding UI components.
Keywords: abstract view, assembly, component, composition, concrete view, interaction, merging, semantic

Conception (Design)

A design notation for mobile collaborative mixed systems BIBAKFull-Text 66-73
  Philippe Renevier; Laurence Nigay
Real needs of mobile users working in groups can be addressed by Mobile Collaborative Mixed Systems. But the design of such systems is a complex task due to the variety of design parameters. For example the characterization of the usage context is difficult because of the mobility of the users as well as the different types of collaboration amongst them. In this paper we present a characterization space and a notation as useful tools for the design of Mobile Collaborative Mixed Systems. Our two contributions are placed within a scenario based design process.
Keywords: CSCW, design, mixed system, mobility, scenario
GUIDE-ME: graphical user interface for the design of mixed interactive environment based on the ASUR notation BIBAKFull-Text 74-77
  Joël Viala; Emmanuel Dubois; Philip D. Gray
In this paper we present GUIDE-ME, Graphical User Interface for the DEsign of Mixed interactive Environment, a graphical tool to the design and the description of mixed systems also called ubiquitous systems. Based on the ASUR notation, that supports the description and the reasoning of mixed systems during the design phase, GUIDE-ME offers graphical editing capabilities for the manipulation of this notation. GUIDE-ME opens up new perspectives in terms of combinations of this notation with other HCI design methods and tools. To illustrate this, we present the links we established between GUIDE-ME and ASURSim, a platform supporting the simulation of the interaction of a mobile user in mixed 3D environment.
Keywords: augmented reality, augmented virtuality, design method, mixed systems, tool support for ASUR
MADA, a mobile application development approach BIBAKFull-Text 78-85
  Nabil Kouici; Nawel Sabri; Denis Conan; Guy Bernard
Despite the rapid evolution of computers in mobile environments, current middleware are inadequate in mobile environments where resources can vary a lot and even disappear. Most of research works dealing with disconnection management do not provide a design model for applications. In this article, we present MADA, an approach to design distributed applications for disconnections thats follows the Model Driven Architecture approach [23]: the software architecture is modelled using the design pattern "Façade" [10] and with 4+1 views [17], and then projected over a platform, here the CCM (CORBA Component Model) platform [25], with a UML (Unified Modelling Language) profile.
Keywords: adaptation, component, disconnection, mobility

Déconnexion et réconciliation de données (Disconnection and reconciliation of data)

Transaction commit protocols for mobile environment: a first study BIBAKFull-Text 86-89
  Christophe Bobineau; Cyril Labbé; Claudia Roncancio; Patricia Serrano-Alvarado
We present first results on the comparison of transactional commit protocols for mobile context (2PC, UCM and CO2PC).
Keywords: performance measurement
Failure, connectivity and disconnection detectors BIBAKFull-Text 90-97
  Lynda Temal; Denis Conan
In mobile environments, mobile terminals are subject to disconnections, for instance, when moving out of the range of a base station. In addition, users execute distributed applications that fail when a single crash occurs. These two extra-functionalities (disconnection management and fault tolerance) are supported by detection mechanisms (of connectivity and disconnection, and of failure). In this paper, we define the concepts of connectivity detector and disconnection detector, by comparison with unreliable failure detectors. These three types of detectors are then mixed for extending disconnection management and leveraging fault tolerance.
Keywords: disconnections, mobility, unreliable failure detectors
A safe and generic model for synchronizing divergent data BIBAKFull-Text 98-106
  Gérald Oster; Pascal Molli; Hala Skaf-Molli; Abdessamad Imine
La réconciliation de données divergentes est un des problèmes clefs de l'informatique mobile, ainsi que des systèmes de gestion de configuration. Malgré le nombre important de synchroniseurs et d'outils de fusion qui traitent ce problème, aucun critère de correction d'un processus de synchronisation n'existe.
   Dans cet article, nous proposons d'utiliser le modèle des transformées opérationnelles pour raisonner sur la synchronisation de données divergentes. Nous présentons un algorithme et des fonctions de transformation qui réalisent la réconciliation d'un système de fichiers. Contrairement aux autres synchroniseurs, notre système garantit des propriétés bien définies telles que la convergence et le respect de la causalité. Il est également extensible à d'autres types de données.
Keywords: divergence, synchronisation, transformées opérationnelles
Reconciliation service for copies synchronisation BIBAKFull-Text 107-114
  Lydialle Chateigner; Sophie Chabridon; Nawel Sabri; Guy Bernard
The concept of multi-synchronous interaction has become popular in the context of collaborative work [7]. This cooperation mode allows the participants of a virtual team to alternate periods of work in coupled mode collaborating with the other team members with isolated work in uncoupled mode. As divergence may then occur, a reconciliation mechanism is required for team members to synchronize their work.
   This article deals with collaborative work among mobile users who manipulate component-based applications. We present the architecture of a reconciliation service that can be seen as an extra-fonctional service supported by the components container. More precisely we propose to extend a component-based middleware by the integration of a synchronisation service implementing the SOCT4. ("Sérialisation des opérations concurrentes par transposition") algorithm [23, 24] based on operation transforms technology.
Keywords: collaborative work, component-based applications, copies reconciliation, extensible container, mobility

Localisation et contexte (Localization and Context)

Location-dependent queries evaluation in mobile networks BIBAKFull-Text 115-122
  Marie Thilliez; Thierry Delot
The recent emergence of handheld devices and wireless networks implies an exponential increase in the number of terminals users. Given this increase, today's service providers have to propose new location-aware applications based on users mobility. We particularly focus on applications based on communication areas. These areas are formed by juxtaposition of several wireless and/or mobile networks and allow the users of handheld devices, physically close to each other, to communicate and exchange data. In this mobile and dynamic environment, the current localization services are not well suited, thus, we have proposed ISLANDS. The localization service ISLANDS provides an evaluation model which allows, in particular, the evaluation of location dependent queries such as "which is the closest theater to me?". In this paper, we describe the proposed solutions to allow the expression and the evaluation of this type of queries. And, we detail more particularly the evaluation of these solutions.
Keywords: localization service, location dependent queries query evaluation, mobile environment
Context-awareness, privacy and mobile access: a web semantic and multiagent approach BIBAKFull-Text 123-130
  Fabien L. Gandon; Norman M. Sadeh
We give an overview of the work achieved in myCampus, an open environment relying on context-awareness to assist mobile accesses to services available on the intranet of a campus, while enforcing privacy preferences of the users.
Keywords: agents, context, mobility, privacy, semantic web
Contextor: capture and dynamic distribution of contextual information BIBAKFull-Text 131-138
  Gaëtan Rey; Joëlle Coutaz
Without the support of adequate software infrastructures, the implementation of context sensitive interactive systems is hard to achieve in a sound way. In this article, we propose the notion of contextor, a software abstraction that supports the operational deployment of interaction contexts. We show how contextors are organized into levels of abstraction, and how these levels fit within the Arch architecture reference model for interactive systems. Based on the P2P paradigm, the contextor infrastructure is intended to support both mobility and ubiquity. Similar in spirit to the Context Toolkit, we make the differences explicit.
Keywords: context modeling, human computer interaction, interaction context, software architecture, ubiquitous computing

Interactions innovantes I (Innovative Interactions)

Interacting with trust in ambient intelligence BIBAKFull-Text 139-142
  Jean-Marc Seigneur
This short paper presents the use of computational trust engines in ambient intelligent environments. Beyond the technical challenge of building trust-based security frameworks, our initial investigations and prototypes have shown that the human interfaces of these frameworks are also challenging and need to be studied.
Keywords: auto-configuration, computational trust, human interface, ubiquitous computing
A personalized recommender system for travel information BIBAKFull-Text 143-150
  Sergiu Chelcea; George Gallais; Brigitte Trousse
This article concerns an emerging research field related to mobility from the transport point of view, linked to the travel information retrieval. To facilitate such a retrieval, we propose the use of recommender systems in a mobility context: these systems facilitate information retrieval, and help prepare the user's trip ("pre-trip": choice of the transport mode, schedule, route, time of the trip, ...) and carry it out ("on-trip": interactive guidance, way visualization, destination planning). This double impact is rarely exploited today and we propose, after a description of the used technologies, to illustrate the benefits of this new approach on a traditional tourist visit example. The originality of this approach lies in 1) its capacities to adapt the recommendations to the user's behavior during his information retrieval correlated to his own movement and 2) the on-line learning capabilities of such a system supporting information retrieval.
Keywords: adaptive interfaces, case-based reasoning, collaborative filtering, filtrage collaboratif, information retrieval, information yoyageur, mobility, on-trip, pre-trip, raisonnement à partir de cas, recommender systems, systèmes de recommandations, tourism, tourisme, transport, traveler information

Interactions innovantes II (Innovative Interactions)

Design and integration of a handwritten character recognition system into mobile phones BIBAKFull-Text 151-157
  Eric Anquetil; François Bouteruche
In this paper, we present the conception and the integration of the handwritten character recognition system (RESIFCar) into mobile devices: smartphone and personal digital assistant. Through an industrial collaboration, RESIFCar has been successfully integrated into mobile devices. These mobile phones are today commercialized in Europe. The experience coming from this industrialization shows us the important part of the input interface in the efficiency of the application. More recent works are presented in the last part of this paper. These works focus on the design of a new pen input interface dedicated to the mobile devices.
Keywords: ergonomics, handwriting recognition system, pen-based interface, smart phone
Mobile devices: soft keyboard text-entry enhanced by Visual Cues BIBAKFull-Text 158-165
  Laurent Magnien; Jean Leon Bouraoui; Nadine Vigouroux
Soft keyboards usually depict a minimal representation of standard desk keyboard. To optimize these devices, some researchers have proposed non-standard keyboard layouts (letters arrangement of the keys). This would theoretically allow to reach greater performances. However these soft keyboards do not meet a wide audience. A probable explanation is the difficulty to become familiar with an unknown layout. In order to facilitate this process, we propose to use visual clues: keys likely to be selected are predicted and highlighted. Hence the user has to scan less key to enter a character. We start to evaluate this method through a user study, by designing a situation where subject is systematically faced with a novel layout. First results suggest that visual clues improve text entry rate on unknown soft keyboard layouts. Hence, according to the letter prediction system, visual clues could be used to improve immediate user satisfaction with optimized soft keyboard, contributing to enlarge their audience.
Keywords: HCI, PDA, mobility, soft keyboard, text input, touch screens, visual cues
Physical objects linked to audio sources: phicon+earcon=phearcon BIBAKFull-Text 166-173
  Sylvain Daudé; Laurence Nigay
This article introduces a new kind of interface, the Phearcons, which are physical objects linked to audio sources that are spatialized according to the objects position and represent information sources. We aim at designing and developing a platfrom called Phearcons for specifying and running such interfaces. This article provides design rules as well as a process for the specification and implementation of such a platform.
Keywords: icônes physiques, phearcons, sonification, sources sonores

Infrastructure & composants II (Infrastructure and Components)

Cooperative approach for mobile application adaptability based on MobileJMS BIBAKFull-Text 174-181
  Mejdi Kaddour; Laurent Pautet
Application adaptability to context changes has emerged as an absolute necessary criteria in the design of successful mobile systems. In this context, we investigate in this paper various factors to be taken into account to reach this goal. We propose an approach based on the cooperation between applications and the MobileJMS middleware which we developed previously. First, applications specify their requirements and constraints in terms of quality of service. Second, middleware provides primitives which fulfill these requirements and constraints. This equation is completed by the correlation between the quality of the service and the execution context of the applications.
Keywords: JMS, MOM, adaptability, application, middleware, mobility, policy
Design of an embedded cost model for mobile queries BIBAKFull-Text 182-186
  Mohammad Hussein; Franck Morvan; Abdelkader Hameurlain
In the context of heterogeneous and distributed data sources in large scale, the traditional optimizers generate execution plans can be sub-optimal because: the estimations are inaccurate, the unavailability of data and the execution environment is unstable. To deal with the sub-optimality of an execution plan, an approach consists to execute each relational operator of an execution plan by a mobile agent. This one can migrate from a site to the other one to comply. The information stored in the site, where the agent is situated, can be insufficient to calculate the site of migration of the agent. In this paper, we propose integrating into the mobile agent, executing an operator, a cost model. This last one allows the mobile agent to choose its site of migration the most appropriate.
Keywords: cost model, heterogeneous distributed databases, mobile agents, optimization
JASON: an open platform for discovering and hosting applications in ad hoc networks BIBAKFull-Text 187-194
  Nicolas Le Sommer; Hervé Roussain
This paper presents a platform called JASON, which allows owners of mobile devices to discover software applications that can be made available to them spontaneously by the other members of their network. It also permits them to announce the applications they wish to provide to the other people, and provides them with facilities to download remote applications and to run these applications locally in a secure environment.
Keywords: ad-hoc networks, discovery and accommodations of untrusted applications, secure deployment environment
Replica placement in a pervasive environment BIBAKFull-Text 195-198
  Julien Gossa; Jean-Marc Pierson; Lionel Brunie
This short paper proposes a replica placement and selection method adapted to pervasive environment. The described solution, based on Small Worlds and the k-server algorithm, is dynamic and flexible according to the mobility and unpredictability of users and networks.
Keywords: k-server, pervasive computing, proxy, replication

Infrastructure et composants III (Infrastructure and Components)

Open-service-platform instrumentation: JMX management over OSGI BIBAKFull-Text 199-202
  Stéphane Frénot; Dan Stefan
Pervasive computing tries to narrow computer devices to the end-user in order to simplify access to his services. This trends currently visible in game online (Xbox live) or with the convergence between phone/internet/numeric television (freebox) is only made available by independent providers that works at defining closed platforms.
   Opening those “ service platforms ” leads to many problems when considering exploitation of those services by multiple providers. In this article, we will focus on instrumentation and supervision of those open service platforms by providing a standard instrumentation layer above them.
Keywords: JMX, OSGi, administration, instrumentation, middleware, open service platforms
A generic architecture for adaptable multimedia services provision: illustration by a scenario BIBAKFull-Text 203-206
  Zakia Kazi-Aoul; Isabelle Demeure; Jean-Claude Moissinac
This paper introduces a generic architecture for the provision of adaptable services to mobile terminal users. The architecture involves the use of component technologies for the service logic and the use of MPEG-7 and MPEG-21 functionalities that enable the description, processing and adaptation of multimedia flows.
   The requirements for adaptable services are motivated by the presentation of an adaptation scenario. The functioning of the architecture is illustrated by the same scenario.
Keywords: MPEG21, MPEG7, adaptation, components, multimedia
Dissemination asynchrone d'information en mode peer-to-peer dans les réseaux ad-hoc BIBAKFull-Text 207-210
  Hervé Roussain; Frédéric Guidec
This paper presents a model for peer-to-peer, asynchronous data dissemination in ad hoc networks. This model relies on a "collective memory" all stations contribute to implement, according to their capacity. This approach helps tackle station volatility and network fragmentation. Information exchange can be performed asynchronously by stations that are not necessarily active simultaneously in the network. Moreover in a fragmented network a station roaming between network islands can provide its neighbours with information it has gathered while visiting another part of the network.
Keywords: Ad-hoc networks, mobility, peer-to-peer, software components
Development of visual communication applications by combining multisource video data BIBAKFull-Text 211-214
  Phuong H. Nguyen; Jozef Hatala; Gilles Privat; Pascal Sicard
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 flexible, adaptive and distributed multimedia framework.
Keywords: X3D, ambient sharing, multimedia framework, panorama vision