Important Dates

Previous Editions

CAT07 workshop: http://cat07.telin.nl

CAT08 workshop: http://cat08.telin.nl

W2TRUST workshop: http://w2trust.uncc.edu

Supporting Organizations

Goals

The Joint CAT09 2.0 workshop aims at stimulating an active exchange of new ideas on (i) interrelations between context-awareness and security, privacy & trust (ii) what kind and what amount of trust can be reposed in Web 2.0 platforms. The workshop intents to bring together scientists and engineers that are active in the areas of context-awareness, Web 2.0, trust management, privacy and security to discuss the state of the art, to identify open and emerging problems, to share research experiences, and to propose future research directions. It welcomes computer science researchers as well as researchers from social sciences, behavioral science, and cognitive science.

Motivations

Context-Awareness and Trust. Context awareness (i.e., the quality of being aware of the physical and virtual environment or of the circumstances that characterize a situation or an entity) can intelligently guide the success or the development of an activity. For example, the location of a user can have impact on which services or content are provided to the user, while alternatively, the user's current role or social context can determine the degree of trust others establish towards the user. Context has been integrated into the design of innovative user interfaces, as a part of ubiquitous and wearable computing, and in hybrid search engines. It can aect a decision to trust as well as it can contribute to the insurance of security and the control of privacy. Therefore, new threats against security, privacy and trust go along with context-awareness, but in the same time the availability of context information oers new opportunities to establish, to enhance and to manage trust, privacy and security. We are motivated to investigate on the interdependencies between context-awareness one side, and trust, privacy, and security on the other. Factors contributing to investigate into this relationship include the vast expansion of sensor networks and the advancement of mobile computing, which entail new paradigms such as ubiquitous/pervasive computing, as well as ambient intelligence.

Web 2.0 and Trust. The web 2.0 paradigm provides the technology that enables government, businesses and users to interact and integrate services, data, and the bene t \The Wisdom of the Crowds". Because of strong collaborative nature of Web 2.0 applications, mechanisms for trust management are crucial for its healthy development. Trust inWeb 2.0 opens several new vistas for researchers and practitioners. Dierently from Web 1.0, where the main trust issues were related to the website content, and authenticity of the source which posted data, trust in Web 2.0 has shifted from the entities that run a site to the people that populate the web, which interact and collaborate seamlessly. For example, using social networks users are engaging with each other at a one to one level in several ways, for business, pleasure, for knowledge sharing and so forth. The predominant issue is now whether one can trust the people on a site, since the content is being generated by anyone and then being rated by anyone. How to ensure that what other users write is true, authentic and will not misused is an open challenge. Trust evaluations are however fundamental to help users making the best decisions when sharing resources and data. Thus, the success of Web 2.0 strongly depends on the development of ecient, adequate and scalable trust models.

Joint Future Direction. In the future evolution of the web known as Internet of things, devices and people will indistinguishably pour information in the Internet. As a consequence, trust, security and privacy aspects will emerge in both the contextual and collaborative sides of information management.