484 research outputs found

    A Cloud-Based Architecture with embedded Pragmatics Renderer for Ubiquitous and Cloud Manufacturing

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    The paper presents a Cloud-based architecture for Ubiquitous and Cloud Manufacturing as a multilayer communicational architecture designated as the Communicational Architecture. It is characterised as (a) rich client interfaces (Rich Internet Application) with sufficient interaction to allow user agility and competence, (b) multimodal, for multiple client device classes support and (c) communicational to allow pragmatics, where human-to-human real interaction is completely supported. The main innovative part of this architecture is sustained by a semiotic framework organised on three main logical levels: (a) device level, which allows the user `to use' pragmatics with the system, (b) application level which results for a set of tools which allows users pragmatics-based interaction and (c) application server level that implements the Pragmatics renderer,a pragmatics supporting engine that supports all pragmatics services. The Pragmatics renderer works as a communication enabler, and consists of a set of integrated collaboration technology that makes the bridge between the user/devices and the `system'. A federated or community cloud is developed using a particular cloud REST ful Application Programming Interface that supports (cloud) services registration, composition and governance (pragmatics services behaves as SaaS in the cloud).The work is supported by the Portuguese National Funding Agency for science, research and technology (FCT), (1) Grant No. UID/CEC/00319/2013, and (2) `Ph.D. Scholarship Grant' reference SFRH/BD/85672/2012.info:eu-repo/semantics/publishedVersio

    A framework for integrating syntax, semantics and pragmatics for computer-aided professional practice: With application of costing in construction industry

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    Producing a bill of quantity is a knowledge-based, dynamic and collaborative process, and evolves with variances and current evidence. However, within the context of information system practice in BIM, knowledge of cost estimation has not been represented, nor has it been integrated into the processes based on BIM. This paper intends to establish an innovative means of taking data from the BIM linked to a project, and using it to create the necessary items for a bill of quantity that will enable cost estimation to be undertaken for the project. Our framework is founded upon the belief that three components are necessary to gain a full awareness of the domain which is being computerised; the information type which is to be assessed for compatibility (syntax), the definition for the pricing domain (semantics), and the precise implementation environment for the standards being taken into account (pragmatics). In order to achieve this, a prototype is created that allows a cost item for the bill of quantity to be spontaneously generated, by means of the semantic web ontology and a forward chain algorithm. Within this paper, ‘cost items’ signify the elements included in a bill of quantity, including details of their description, quantity and price. As a means of authenticating the process being developed, the authors of this work effectively implemented it in the production of cost items. In addition, the items created were contrasted with those produced by specialists. For this reason, this innovative framework introduces the possibility of a new means of applying semantic web ontology and forward chain algorithm to construction professional practice resulting in automatic cost estimation. These key outcomes demonstrate that, decoupling the professional practice into three key components of syntax, semantics and pragmatics can provide tangible benefits to domain use

    Architectures for integration of information systems under conditions of dynamic reconfiguration of virtual enterprises

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    Tese Doutoramento Programa Doutoral em Industrial and Systems EngineeringThe aim of this thesis is to explore Architectures of information systems Integration under conditions of dynamic reconfiguration of Virtual Enterprises. The main challenge that we identify and which formed the basis of the research is that information technologies alone cannot support efficiently and effectively the human knowledge and their natural way of interacting. Already from Sausurre (1916) it could be argued that part of knowledge resides in person, and the attempt to try to model it is sufficient for it to be misrepresented. And this is the motto of all this work. Enhance the capabilities of emerging technologies, but in the sense that allow humanto- human interaction, having the information system merely a means to make this possible. Thus we argue that a communicational architecture of information systems integration (where Pragmatics mechanisms are enabled) in virtual enterprises in dynamic reconfiguration scenarios, are better able than the existing transactional architectures. We propose a communicational architecture able to achieve an effective integration of information systems, as well as designing its logical and functional model. We also define the necessary semiotic framework in order to a communicational integration architecture could be efficient and effective. We implemented two prototypes to demonstrate the applicability of the proposed architecture. The demonstration of the research hypothesis was demonstrated with the realization of two experimentations where the ontologies have been unable to resolve disagreements or absences of opinion inherent in people who collaborated. This was overcome with the implementation of mechanisms that allow the co-creation between members of the group that participated in the trial.O objectivo desta tese é explorar Arquitecturas de Integração de Sistemas de Informação em condições de Reconfiguração Dinâmica de Empresas Virtuais. O principal desafio que identificamos e que serviu de base da pesquisa é que as tecnologias de informação por si só não conseguem suportar de forma eficiente e efectiva o conhecimento humano e a sua forma natural de interagir. Já Sausurre (1916) defendia que parte do conhecimento residirá sempre na pessoa, e a tentativa de o tentar modelar é suficiente para que seja deturpado. E esse é o mote de todo este trabalho. Enaltecer as capacidades das tecnologias emergentes mas no sentido de elas permitirem a interacção homem-to-homem, sendo o sistema de informação meramente um meio para que tal seja possível. Argumentamos por isso que uma arquitectura comunicacional de integração de sistemas de informação, onde Pragmatics mechanisms are enabled, em empresas virtuais em cenários de reconfiguração dinâmica, são mais capazes que as actuais arquitecturas transacionais. Propomos para isso uma arquitectura comunicacional capaz de conseguir uma integração efectiva de sistemas de informação, assim como desenhamos o seu modelo lógico e funcional. Definimos ainda o quadro semiótico necessário para que uma arquitectura comunicacional de integração seja eficiente e effectiva. Implementamos dois protótipos capazes de demonstrar a aplicabilidade da arquitectura proposta. A demonstração da hipótese de pesquisa ficou demonstrada com a realização de uma experimentação onde as ontologias se mostraram incapazes de resolver discordâncias ou ausências de opinião inerentes às pessoas que colaboram. Tal foi superado com a aplicação de mecanismos que permitiram a co-criação entre os membros do grupo que realizou a experimentação

    Viewpoints on emergent semantics

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    Authors include:Philippe Cudr´e-Mauroux, and Karl Aberer (editors), Alia I. Abdelmoty, Tiziana Catarci, Ernesto Damiani, Arantxa Illaramendi, Robert Meersman, Erich J. Neuhold, Christine Parent, Kai-Uwe Sattler, Monica Scannapieco, Stefano Spaccapietra, Peter Spyns, and Guy De Tr´eWe introduce a novel view on how to deal with the problems of semantic interoperability in distributed systems. This view is based on the concept of emergent semantics, which sees both the representation of semantics and the discovery of the proper interpretation of symbols as the result of a self-organizing process performed by distributed agents exchanging symbols and having utilities dependent on the proper interpretation of the symbols. This is a complex systems perspective on the problem of dealing with semantics. We highlight some of the distinctive features of our vision and point out preliminary examples of its applicatio

    Integrating collaborative tagging and emergent semantics for image retrieval

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    Trabajo presentado al Workshop de la 15th International World Wide Conference (WWW) celebrado en Edinburgh (Scotland) del 22 al 23 de mayo de 2006.In this paper, we investigate the combination of collaborative tagging and emergent semantics for improved data navigation and search. We propose to use visual features in addition to tags provided by users in order to discover new relationships between data. We show that our method is able to overcome some of the problems involved in navigating databases using tags only, such as synonymy or different languages, spelling mistakes, homonymy, or missing tags. On the other hand, image search based on visual features can be simplified substantially by the use of tags. We present technical details of our prototype system and show some preliminary results.This research was carried out and funded by the Sony Computer Science Laboratory in Paris with additional funding from the EU FET project ECAgents (IST-2003-1940) through the Sony Computer Science Laboratory in Paris.N

    On the emergence of semantic agreement among rational agents

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    Today’s complex online applications often require the interaction of multiple (web) services that belong to potentially different business entities. Interoperability is a core element of such an environment, yet not a straightforward one due to the lack of common data semantics. The problem is often approached by means of standardization procedures in a top-down manner with limited adoption in practice. (De facto) standards for semantic interoperability most commonly emerge in a bottom-up approach, i.e., involving the interaction and information exchange among self-interested industrial agents. In this paper, we argue that the emergence of semantic interoperability can be seen as an economic process among rational agents and, although interoperability can be mutually beneficial for the involved parties, it may also be costly and might fail to emerge. As a sample scenario, we consider the emergence of semantic interoperability among rational web service agents in service-oriented architectures (SOAs), and we analyze their individual economic incentives with respect to utility, risk and cost. We model this process as a positive-sum game and study its equilibrium and evolutionary dynamics. According to our analysis, which is also experimentally verified, certain conditions on the communication cost, the cost of technological adaptation, the expected mutual benefit from interoperability, as well as the expected loss from isolation, drive the process

    Analyzing the Emergence of Semantic Agreement among Rational Agents

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    Todays complex online applications often require the interaction of multiple services that potentially belong to different business entities. Interoperability is a core element of such an environment, yet not a straightforward one. In this paper, we argue that the emergence of interoperability is an economic process among rational agents and, although interoperability can be mutually beneficial for the involved parties, it is also costly and may fail to emerge. As a sample scenario, we consider the emergence of semantic interoperability among rational service agents in the service-oriented architectures (SOA) and analyze their individual economic incentives with respect to utility, risk and cost. We model this process as a positive-sum game and study its equilibrium and evolutionary dynamics. According to our analysis, which is also experimentally verified, certain conditions on the communication cost, the cost of technological adaptation, the expected mutual benefit from interoperability as well as the expected loss from isolation drive the process

    Semantic technologies: from niche to the mainstream of Web 3? A comprehensive framework for web Information modelling and semantic annotation

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    Context: Web information technologies developed and applied in the last decade have considerably changed the way web applications operate and have revolutionised information management and knowledge discovery. Social technologies, user-generated classification schemes and formal semantics have a far-reaching sphere of influence. They promote collective intelligence, support interoperability, enhance sustainability and instigate innovation. Contribution: The research carried out and consequent publications follow the various paradigms of semantic technologies, assess each approach, evaluate its efficiency, identify the challenges involved and propose a comprehensive framework for web information modelling and semantic annotation, which is the thesis’ original contribution to knowledge. The proposed framework assists web information modelling, facilitates semantic annotation and information retrieval, enables system interoperability and enhances information quality. Implications: Semantic technologies coupled with social media and end-user involvement can instigate innovative influence with wide organisational implications that can benefit a considerable range of industries. The scalable and sustainable business models of social computing and the collective intelligence of organisational social media can be resourcefully paired with internal research and knowledge from interoperable information repositories, back-end databases and legacy systems. Semantified information assets can free human resources so that they can be used to better serve business development, support innovation and increase productivity

    An aesthetics of touch: investigating the language of design relating to form

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    How well can designers communicate qualities of touch? This paper presents evidence that they have some capability to do so, much of which appears to have been learned, but at present make limited use of such language. Interviews with graduate designer-makers suggest that they are aware of and value the importance of touch and materiality in their work, but lack a vocabulary to fully relate to their detailed explanations of other aspects such as their intent or selection of materials. We believe that more attention should be paid to the verbal dialogue that happens in the design process, particularly as other researchers show that even making-based learning also has a strong verbal element to it. However, verbal language alone does not appear to be adequate for a comprehensive language of touch. Graduate designers-makers’ descriptive practices combined non-verbal manipulation within verbal accounts. We thus argue that haptic vocabularies do not simply describe material qualities, but rather are situated competences that physically demonstrate the presence of haptic qualities. Such competencies are more important than groups of verbal vocabularies in isolation. Design support for developing and extending haptic competences must take this wide range of considerations into account to comprehensively improve designers’ capabilities
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