CASMAS: Supporting Collaboration in Pervasive Environments

Cabitza, Federico; Locatelli, Marco; Sarini, Marcello; Simone, Carla

doi:10.1109/percom.2006.15

Cited by 9 publications

(10 citation statements)

References 15 publications

(15 reference statements)

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“…Since we are focused on the awareness side of a CUE we will talk hereinafter about A-agent, as a short form of awareness agent. In fact, in the modeling of a CUE additional agents of a different type (for instance managing the coordination part of the environment) are employed; more details on the overall structure of the CUE modeling are available in [7].…”

Section: Multilayered Multi-agent Situated System and Cuesmentioning

confidence: 99%

“…This scenario describes how awareness information, included the presence of each entity, can be propagated on the topological spaces and how the agents can perceive it in a manner related to their own context in a situation where the information is addressed to people that are in a particular state, that is being in some position of the smart department [7] or participating to projects.…”

Section: Multilayered Multi-agent Situated System and Cuesmentioning

confidence: 99%

“…In this paper we do not provide details on the coordination component of a CUE (see [7,11] to have more information on this topic) because it is not strictly related to topological spaces and their representation, instead it is focused on information and behaviour exchange. The coordination part of the model is implemented by adopting DJess [6], a middleware that easily allows the sharing of facts (to represent statements) as well as rules (to describe behaviours).…”

Section: A Djess Mmass-based Collaborative Ubiquitous Architecturesmentioning

confidence: 99%

“…By modifying the working memory, adding a new field value, this rule is able to recursively trigger further activations of the same diffusion rule on different sites, stopping only when the emitted field has been propagated to all sites that must be reached according to the spatial structure of the layer and to the diffusion function of the related field type. A prototypal implementation of the templates representing the environment configuration and state, as well as the rules managing field diffusion, was realized and tested in the CUE described in [7]. The rule based approach proved to be sufficiently expressive to support a simple design and (possibly online) configuration of the CUE by changing facts related to environment configuration, exploiting basic mechanisms realized by means of rules working on the basis of those facts.…”

Section: Djess and Mmassmentioning

confidence: 99%

“…The latter is in fact growingly endowed with sensors, information sources, hidden (or disappearing) computational devices that can exploit the pervasive presence of wired and wireless communication infrastructures. In order to fully exploit the potential of this new technological scenario, CUEs must be able to manage the dimension of coordination (that is devoted to expected patterns of interactions among users) as well as awareness (devoted to supplying users information about opportunities that can arise in the CUE, such as the "nearby" presence and availability of a technological appliance or a possible partner of interaction) [7]. Beyond the representation of the space, both physical and logical, context awareness is built on the information dynamically diffused in the spaces in accord to the view of context as an interactional problem; the modulated propagation of information is a key requirement of CUEs and allows dynamic interaction and perception among actors in terms of perception by proximity, dynamic configuration of the environment, acquisition of contextualized information and so on.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Environment Support to the Management of Context Awareness Information

Locatelli

Vizzari

Engineering Environment-Mediated Multi-Agent Systems

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Abstract. Collaborative Ubiquitous Environments (CUEs) are environments supporting collaboration among persons in a ubiquitous computing setting. This paper shows how results of the research in the Multi-Agent System (MAS) area, and in particular on MAS environments, can be used to model, design and engineer CUEs, with specific reference to the management of context-awareness information. The role of the Multilayered Multi-Agent Situated System model in managing awareness information is briefly described and applied to represent and to manage several types of awareness information (both physical and logical contextual information). Finally, the paper introduces a prototypal framework based on DJess supporting the definition and management of MMASS based CUEs.

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Section: Multilayered Multi-agent Situated System and Cuesmentioning

confidence: 99%

Section: Multilayered Multi-agent Situated System and Cuesmentioning

confidence: 99%

Section: A Djess Mmass-based Collaborative Ubiquitous Architecturesmentioning

confidence: 99%

Section: Djess and Mmassmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Environment Support to the Management of Context Awareness Information

Locatelli

Vizzari

Engineering Environment-Mediated Multi-Agent Systems

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SCaaS: A Platform for Managing Adaptation in Collaborative Pervasive Applications

Kabir

Han

Colman

et al. 2013

On the Move to Meaningful Internet Systems: OTM 2013 Conferences

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In this paper, we present a social context as a service (SCaaS) platform for managing adaptations in collaborative pervasive applications that support interactions among a dynamic group of actors such as users, stakeholders, infrastructure services, businesses and so on. Such interactions are based on predefined agreements and constraints that characterize the relationships between the actors and are modeled with the notion of social context. In complex and changing environments, such interaction relationships, and thus social contexts, are also subject to change. In existing approaches, the relationships among actors are not modeled explicitly, and instead are often hard-coded into the application. Furthermore, these approaches do not provide adequate adaptation support for such relationships as the changes occur in user requirements and environments. In our approach, inter-actor relationships in an application are modeled explicitly using social contexts, and their execution environment is generated and adaptations are managed by the SCaaS platform. The key features of our approach include externalization of the interaction relationships from the applications, representation and modeling of such relationships from a domain and actor perspectives, their implementation using a service oriented paradigm, and support for their runtime adaptation. We quantify the platform's adaptation overhead and demonstrate its feasibility and applicability by developing a telematics application that supports cooperative convoy.

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WWW in the Small

et al. 2007

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The web technology is increasingly used by communities of various kinds to support their memory and the interactions among their members. In these cases the WWW can be viewed as a web of local spaces (Web in the small), each characterized by local structure and semantics. The local space can be used to provide the community members with adaptive functionalities to enhance their navigations and to promote new forms of interaction among them. The realization and management of these functionalities are sustainable since they do not require more knowledge and effort than the ones the community generates and spends to survive. The paper presents a technology, the LAW system, which is a step towards a view of the Web in the small and complements more traditional technologies supporting the current acceptation of the World Wide Web (Web in the large). The LAW system is informed by an agent based model where space and its topology are first class concepts.

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CASMAS: Supporting Collaboration in Pervasive Environments

Cited by 9 publications

References 15 publications

Environment Support to the Management of Context Awareness Information

Environment Support to the Management of Context Awareness Information

SCaaS: A Platform for Managing Adaptation in Collaborative Pervasive Applications

WWW in the Small

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