Alvarez Napagao, Sergio
Total activity: 23
Department
Department of Software
E-mail
salvarezlsi.upc.edu
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Scientific and technological production
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1 to 23 of 23 results
  • Situated agents and humans in social interaction for elderly healthcare: the case of COAALAS

     Gomez Sebastia, Ignasi; Alvarez Napagao, Sergio; Garcia Gasulla, Dario; Cortes Garcia, Claudio Ulises
    Conference on Artificial Intelligence in Medicine
    Presentation's date: 2013-06-01
    Presentation of work at congresses

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    Assistive Technologies (AT) are an application area where several Artificial Intelligence techniques and tools have been successfully applied to support elder or impeded people on their daily activities. However, approaches to AT tend to center in the user-tool interaction, neglecting the user's connection with its social environment (such as care-takers, relatives and health professionals) and the possibility to monitor undesired behaviour providing both adaptation to a dynamic environment and early response to potentially dangerous situations. In previous work we have presented Coaalas, an intelligent social and norm-aware device for elder people that is able to autonomously organize, reorganize and interact with the dierent actors involved in elder-care, either human actors or other devices. In this paper we put our work into context, by first examining what are the desirable properties of such a system, analysing the state of the art on the relevant topics, and verifying the validity of our proposal.

  • Applying COAALAS to SPiDer

     Moreno Vazquez, Jonatan; Cortes Garcia, Claudio Ulises; Garcia Gasulla, Dario; Gomez Sebastia, Ignasi; Alvarez Napagao, Sergio
    Congrés Internacional de l¿Associació Catalana d¿Intel·ligència Artificial
    Presentation of work at congresses

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    Artificial Intelligence techniques and tools have been applied to Assis- tive Technologies (AT) in order to support elder or impeded people on their daily activities. A common application are intelligent pill dispensers and reminders that help the patient comply with his medication. This has become even more important, as patients suffering from multiple pathologies are prescribed cocktails of drugs that require strict compliance in order to achieve a successful treatment. Existing intelligent pill dispensers tend to focus in the user-tool interaction, neglecting user¿s connection with its social environment and the possibility to monitor patient¿s behaviour, effectively adapting to a dynamic environment and providing early re- sponse to potentially dangerous situations by detecting unexpected or undesired patterns of behaviour. In previous work we have presented COAALAS, an intelligent social and norm-aware device for elder people that is able to autonomously organize, reorganize and interact with the different actors involved in elder-care, either human actors or other devices. In this paper, we present SPiDer an intelligent pill dispenser integrated with the COAALAS architecture.

  • 1st Hacking Bullipedia Global Challenge

     Gibert Oliveras, Karina; Vazquez Salceda, Javier; Alvarez Napagao, Sergio; Oliva Felipe, Luis Javier; Sevilla Villanueva, Beatriz; Tejeda Gomez, Jose Arturo; Gomez Sebastia, Ignasi
    Award or recognition

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  • Socially-aware emergent narrative

     Alvarez Napagao, Sergio; Gomez Sebastia, Ignasi; Panagiotidi, Sofia; Tejeda Gomez, Jose Arturo; Oliva Felipe, Luis Javier; Vazquez Salceda, Javier
    International Workshop on Agents for Educational Games and Simulations
    Presentation's date: 2012
    Presentation of work at congresses

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    In agent research, emergent narrative aims for practical solutions to the narrative paradox problem in both drama and interactive scenarios. At the same time, organisational frameworks can be used in games to provide flexibility, adaptiveness, or social-awareness. In this paper, we propose an extension of our cOncienS framework to support emergent narrative in games with two objectives: 1) provide social-awareness in emergent narrative by means of an organisational model, and 2) create convincing dynamic and flexible storytelling in games.

  • Towards an implementation of a social electronic reminder for pills

     Gomez Sebastia, Ignasi; Garcia Gasulla, Dario; Alvarez Napagao, Sergio; Vazquez Salceda, Javier; Cortes Garcia, Claudio Ulises
    International Conference on Autonomous Agents and Multiagent Systems
    Presentation's date: 2012
    Presentation of work at congresses

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    Non-compliance with prescribed medication is a major problem for elder people living alone in developed countries. Forgetfulness and confusion can lead to it, specially when multiple pathologies require a cocktail of diff erent medications each delivered at different time intervals during di fferent periods of time. Assistive technologies, a recent application area for a wide range of Arti cial Intelligence techniques and tools, have been e ectively used for supporting people in their daily activities. This paper introduces the design and implementation of a system for assisting elder people on following the treatment prescribed by a professional, with the novelty of being based in social and organisational aware assistive technology.

  • A distributed norm compliance model

     Gomez Sebastia, Ignasi; Alvarez Napagao, Sergio; Vazquez Salceda, Javier
    Congrés Internacional de l¿Associació Catalana d¿Intel·ligència Artificial
    Presentation's date: 2011-10-27
    Presentation of work at congresses

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  • Society of situated agents for adaptable eldercare

     Gomez Sebastia, Ignasi; Garcia Gasulla, Dario; Alvarez Napagao, Sergio
    ERCIM news
    Date of publication: 2011-10-01
    Journal article

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    Assistive technologies are applied to support people in their daily life. Most approaches focus solely on the direct interaction between users – in our case, disabled patients - and the assistive tool, but Artificial Intelligence (AI) has the potential to provide innovative mechanisms and methods capable of taking into account more complex interactions. For instance, such an approach can take into account the important role that third parties may have in user activities, and explicitly reflect the social constraints that apply in the relationship between device and patient. In COAALAS (COmpanion for Ambient Assisted Living on Alive-ShareIt platforms), organizational and normative structures are used to model the sensor network around disabled users as societies, along with the expected behavioural patterns, effectively supporting smart assistive tools that integrate in perfect harmony with the humans around them. The result is an assistive society of ambient-aware assistive tools.

  • SUstainable and PERsuasive Human Users moBility in future cities

     Alvarez Napagao, Sergio; Gomez Sebastia, Ignasi; Oliva Felipe, Luis Javier; Tejeda Gomez, Jose Arturo; Gibert Oliveras, Karina; Sànchez Marrè, Miquel; Garcia Gasulla, Dario; Vazquez Salceda, Javier
    Participation in a competitive project

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    CONCIENS: organizational awareness in real-time strategy games  Open access

     Alvarez Napagao, Sergio; Gomez Sebastia, Ignasi; Vazquez Salceda, Javier; Koch, Fernando
    International Conference of the Catalan Association for Artificial Intelligence
    Presentation's date: 2010-10-22
    Presentation of work at congresses

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    The implementation of AI in commercial games is usually based on low level designs that makes the control predictable, unadaptive, and non reusable. Recent algorithms such as HTN or GOAP prove that higher levels of abstraction can be applied for better performance. We propose that approaches based on Organizational Theory can help providing a sound alternative for these implementations. In this paper we present CONCIENS, an integration of the ALIVE organizational framework into commercial games. We introduce a proof-of-concept implementation based on the integration to Warcraft III.

    Postprint (author’s final draft)

  • Making games ALIVE: an organisational approach

     Alvarez Napagao, Sergio; Koch, Fernando; Gomez Sebastia, Ignasi; Vazquez Salceda, Javier
    Workshop on Agents for Games and Simulations
    Presentation's date: 2010-05-10
    Presentation of work at congresses

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    The AI techniques used in commercial games are usually predictable, inflexible and unadaptive, causing a lack of realism for the player. In this paper, we introduce a proposal of integrating the ALIVE framework, based on Organisational theory, into commercial games. The objective of our proposal is to provide game AI developers with a methodology and tools to model gaming scenarios using social structures.

  • Making norms concrete

     Aldewereld, Huib; Alvarez Napagao, Sergio; Dignum, Frank; Vazquez Salceda, Javier
    International Conference on Autonomous Agents and Multiagent Systems
    Presentation's date: 2010-05-12
    Presentation of work at congresses

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    In systems based on organisational specifications a reoccurring problem remains to be solved in the disparity between the level of abstractness of the organisational concepts and the concepts used in the implementation. Organisational specifications (deliberately) abstract from general practice, which creates a need to relate the abstract concepts used in the specification to concrete ones used in practice. A solution for this problem is the use of counts-as statements, which, by defining the social reality, provide the concrete concepts their institutional and organisational meaning. Continuing work on the implementation of counts-as to relate abstract and concrete concepts in agent-based systems, this paper investigates the implementation of counts-as statements in Drools to relate abstract organisational specifications and its norms to concrete situations.

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    Norms, organisations and semantic web services: The ALIVE approach  Open access

     Alvarez Napagao, Sergio; Cliffe, Owen; Vazquez Salceda, Javier; Padget, Julian
    Coordination, Organization, Institutions and Norms in Agent Systems & On-line Communities
    Presentation's date: 2009-09-07
    Presentation of work at congresses

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    ALIVE is an EU FP7 STREP whose goal is the convergence of organisational and normative modelling with and service-oriented architectures (SOAs) using model-driven software engineering. The project provides a framework for designing and implementing systems, taking into account organisational, coordination and service perspectives. A key project aspect is the integration of normative systems with live SOAs, through the distributed monitoring of normative state. Here we give a brief overview of the project, explore of the domain from a service context, outline the architecture under construction and sketch the use-cases that illustrate and inform the project.

  • Engineering social reality with inheritance relations

     Aldewereld, Huib; Alvarez Napagao, Sergio; Dignum, Frank; Vazquez Salceda, Javier
    Engineering Societies in the Agents' World
    Presentation's date: 2009-11-18
    Presentation of work at congresses

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    In systems based on organisational specifications a reoccurring problem remains to be solved in the disparity between the level of abstractness of the organisational concepts and the concepts used in the implementation. Organisational specifications (deliberately) abstract from general practice, which creates a need to relate the abstract concepts used in the specification to concrete ones used in the practice. The prevailing solution for this problem is the use of counts-as statements. However, current implementations of counts-as view the relations expressed in this notion as static ontological classifications, which presents problems in dynamic environments where the meaning of abstract concepts can change over time. This limitation has already been solved in complex formal theoretical investigations, but the results of that study are far too complex to make a practical implementation. This paper investigates the limitations of current implementations of counts-as, and proposes a more flexible implementation based on the use of inheritance relations.

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    USE: a concept-based recommendation system to support creative search  Open access

     Sousa Lopes, João; Alvarez Napagao, Sergio; Vazquez Salceda, Javier
    IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology
    Presentation's date: 2009-09-15
    Presentation of work at congresses

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    Semiotics is a field on which research in Computer Science methodologies has focused, mainly concerning Syntax and Semantics. These methodologies, however, are lacking some flexibility for the continuously evolving web community, in which the knowledge is classified with tags rather than with ontologies. In this paper we propose a system for the recommendation of tagged pictures obtained from the Web. The system, driven by user feedback, executes an abductive reasoning (based on WordNet synset semantic relations) that is able to iteratively lead to new concepts which progressively represent the cognitive creative user state.

  • Modelling contractually-bounded interactions in the car insurance domain

     Vazquez Salceda, Javier; Confalonieri, Roberto; Gomez Sebastia, Ignasi; Storms, P; Kuijpers, N; Panagiotidi, Sofia; Alvarez Napagao, Sergio
    Workshop on Technological trends in Enterprise Systems for SMEs and large enterprises: Heading towards the Future Internet (at: DIGIBIZ 2009. The International Conference on Digital Business)
    Presentation of work at congresses

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  • A middleware for building contract-aware agent-based services

     Confalonieri, Roberto; Alvarez Napagao, Sergio; Panagiotidi, Sofia; Vazquez Salceda, Javier; Willmott, Steven Nicolas
    International Workshop on Service-Oriented Computing: Agents, Semantics, and Engineering
    Presentation's date: 2008-05-11
    Presentation of work at congresses

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    This paper presents a middleware to help designers in the implementation of contract-aware agent-based services. The middleware provides several components, including a contract manager, a communication manager and a workflow manager, which combine to allow agents to manage contracts and the actions associated with them. The middleware is built as part of a Web service implementation of the ISTCONTRACT framework. An electronic commerce example is used to illustrate how the components of the middleware facilitates the management and execution of agreements in a contract at run-time.

  • Intelligent contracting agents language

     Panagiotidi, Sofia; Vazquez Salceda, Javier; Alvarez Napagao, Sergio; Ortega Martorell, Sandra; Willmott, Steven Nicolas; Confalonieri, Roberto; Storms, P
    Symposium on Behaviour Regulation in Multi-Agent Systems (in conjunction with the 2008 AISB Convention)
    Presentation of work at congresses

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  • Using SOA provenance to implement norm enforcement in e-Institutions

     Vazquez Salceda, Javier; Alvarez Napagao, Sergio
    Workshop on Coordination, Organizations, Institutions, and Norms in Agent Systems (at: AAAI¿08. Twenty-Third Conference on Artificial Intelligence)
    Presentation of work at congresses

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  • Using provenance to implement a norm enforcement mechanism for agent-mediated healthcare systems

     Alvarez Napagao, Sergio; Vazquez Salceda, Javier
    5th Workshop on Agents Applied in Health Care (at: AAMAS 2008. The Seventh International Conference on Autonomous Agents and Multiagent Systems)
    Presentation of work at congresses

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  • EU PROVENANCE project: an open provenance architecture for distributed applications

     Vazquez Salceda, Javier; Alvarez Napagao, Sergio; Kifor, T; Varga, L Z; Miles, S; Moreau, L; Willmott, Steven Nicolas
    Date of publication: 2008-01-31
    Book chapter

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  • Applying provenance in distributed organ transplant management

     Alvarez Napagao, Sergio; S, Varga L Z; Vazquez Salceda, Javier; Kifor, T; Willmott, Steven Nicolas
    International Provenance and Annotation Workshop
    Presentation of work at congresses

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  • Privacy iIssues of provenance in electronic healthcare record systems

     Kifor, T; Varga, L; Alvarez Napagao, Sergio; Vazquez Salceda, Javier; Willmott, Steven Nicolas
    First International Workshop on Privacy and Security in Agent-based Collaborative Environments (at: AAMAS 2006 Fifth International Joint Conference on Autonomous Agents and Multi-Agent Systems)
    Presentation of work at congresses

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  • Provenance in agent-mediated healthcare systems

     Kifor, T; Varga, L Z; Vazquez Salceda, Javier; Alvarez Napagao, Sergio; Willmott, Steven Nicolas; Miles, S; Moreau, L
    IEEE intelligent systems
    Date of publication: 2006-11
    Journal article

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