Trust Put to the Test: a Testcase for a Cognitive Trust Model

International audienceThe wide diffusion of open and decentralized environments like the Web makes it possible for actors to interact with previously unknown peers. As a consequence, trust has become a hot topic in the field of computer science. Many attempts to formalize concepts like trust and reputation have been carried out in the literature, most remarkably the one by Herzig et al. [1]. However, Herzig et al. focus on describing a conceptual framework but do not provide any concrete instantiation of it, thereby not showing any evidence about the effectiveness of their approach. This paper fills the gap by presenting such an instantiation based on agent technologies. Although our instantiation targets a Wikipedia-related scenario and exploits the Jason [2] and CArtAgO [3], [4] frameworks, the methodology we present is general and can be applied to different scenarios and agent technologies

Security control brought back to the user

The activity of the Ph.D. student Juri Luca De Coi involved the research field of policy languages and can be divided in three parts. The first part of the Ph.D. work investigated the state of the art in policy languages, ending up with: (i) identifying the requirements up-to-date policy languages have to fulfill; (ii) defining a policy language able to fulfill such requirements (namely, the Protune policy language); and (iii) implementing an infrastructure able to enforce policies expressed in the Protune policy language. The second part of the Ph.D. work focused on simplifying the activity of defining policies and ended up with: (i) identifying a subset of the controlled natural language ACE to express Protune policies; (ii) implementing a mapping between ACE policies and Protune policies; and (iii) adapting the ACE Editor to guide users step by step when defining ACE policies. The third part of the Ph.D. work tested the feasibility of the chosen approach by applying it to meaningful real-world problems, among which: (i) development of a security layer on top of RDF stores; and (ii) efficient policy-aware access to metadata stores. The research activity has been performed in tight collaboration with the Leibniz Universität Hannover and further European partners within the projects REWERSE, TENCompetence and OKKAM

User Profile Based Activities in Flexible Processes

International audienceCOOPER platform is a collaborative, open environment that leverages on the idea of flexible, user-centric process support. It allows cooperating team members to define collaborative processes and flexibly modify the process activities even during process execution. In this paper we describe how the incorporation of decentralized user data through mashups, allows the COOPER platform to support the definition and execution of the so called user profile based activities, i.e., process activities that are adapted based on the preferences of the process actors. We define two basic types of user profile based activities, namely user adapted activities and user conditional activities. The first are modeled according to the user profile data, while the second employs the same user data to enable automatic workflow decisions

The Comprehensive Health Information System: a Platform for Privacy-Aware and Social Health Monitoring

International audienceRapid ageing of world population makes the traditional hospitalization therapy more and more expensive, new forms of medical care are hence required. At the same time, the medical community perceives the availability of vital data as an essential prerequisite to acquire objective information about patients. Finally, the patients themselves show willingness to provide such data, in order for their health conditions to be regularly monitored. This paper presents the last developments of the Comprehensive Health Information System (CHISel'd), a platform for continuous health monitoring whose main goal is to show how information technologies can be exploited to provide a feasible alternative to the traditional hospitalization therapy. Remarkable features of CHISel'd are its capability to process patient data according to a dynamically evolving set of data mining techniques and to share them among stakeholders (doctors, researchers, friends...) according to patient-defined access policies and in the frame of e-communities. These features enable CHISel'd to address the needs perceived by patients and the medical community

ID5.15: New Core specifications v2

Mazzetti, A., Dicerto, M., Grigorov, A., Zerr, S., De Coi, J. L., Kawase, R., Perez, M., Roldan, A., Mittal, P. (2009). ID5.15: New Core specifications v2.This document describes the new functionalities for LearnWeb/KRService, which will be implemented in the new version called V0.3 and which will be available in late spring 2009. The main topics cover: resource functionalities, integration with other TENCompetence tools and social functionalities. This document describes LearnWeb/KRService in terms of: ARCHITECTURE, USER INTERFACE, RESOURCE FUNCTIONALITIES, INTEGRATION FUNCTIONALITIES, SOCIAL FUNCTIONALITIES.The work on this publication has been sponsored by the TENCompetence Integrated Project that is funded by the European Commission's 6th Framework Programme, priority IST/Technology Enhanced Learning. Contract 027087 [http://www.tencompetence.org

The TENCompetence approach to authorization

This document contains a software documentation of the TENCompetence Authorization Service.This report is the first version of a document which is meant to track the progress in authorization-related issues within TENCompetence. It contains (i) an introduction to the PROTUNE framework (ii) a TENCompetence authorization scenario and (iii) the current state of the implementation.The work on this publication has been sponsored by the TENCompetence Integrated Project that is funded by the European Commission's 6th Framework Programme, priority IST/Technology Enhanced Learning. Contract 027087 [http://www.tencompetence.org

Reputation Put to the Test: a Testcase for a Cognitive Reputation Model

International audienceThe wide diffusion of open and decentralized environments like the Web makes it possible for actors to interact with previously unknown peers. As a consequence, trust has become a hot topic in the field of computer science. Many attempts to formalize concepts like trust and reputation have been carried out in the literature, most remarkably the one by Herzig et al. However, Herzig et al. focus on describing a conceptual framework but do not provide any concrete instantiation of it, thereby not showing any evidence about the effectiveness of their approach. This paper fills the gap by presenting such an instantiation based on agent technologies. Although our instantiation targets a Wikipedia- related scenario and exploits the Jason and CArtAgO frameworks, the methodology we present is general and can be applied to different scenarios and agent technologies

A Community-based Framework for Healthcare Data Sharing (Poster, Part 2)

Privacy, Communit