Ricard L. Fogués

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The use of social networking services (SNSs) such as Facebook has explosively grown in the last few years. Users see these SNSs as useful tools to find friends and interact with them. Moreover, SNSs allow their users to share photos, videos, and express their thoughts and feelings. However, users are usually concerned about their privacy when using SNSs.(More)
Social networking services (SNSs) such as Facebook or Twitter have experienced an explosive growth during the few past years. Millions of users have created their profiles on these services because they experience great benefits in terms of friendship. SNSs can help people to maintain their friendships, organize their social lives, start new friendships, or(More)
Social network services enable users to share large quantities of private information. Often, the shared information concerns individuals who are members of the social network but did not upload the information to the service. In such situations, inappropriate sharing preferences can cause conflict and threaten users’ privacy. Since related studies suggest(More)
Social network services (SNSs) enable users to conveniently share personal information. Often, the information shared concerns other people, especially other members of the SNS. In such situations, two or more people can have conflicting privacy preferences; thus, an appropriate sharing policy may not be apparent. We identify such situations as <i>multiuser(More)
Multiagent Systems are a promising paradigm for software development. It is feasible to model such systems with many components where each one can solve a specific problem. This division of responsibilities allows multiagent systems to work in dynamically changing environments. An example of an environment that is very changeable is related with emergencies(More)
Social Network Sites (SNSs) such as Facebook and Google+ allow users to store and share large collections of photos. SNSs offer access controls that protect those photos from unwanted audiences. However, due to the lack of usability of these access controls, people struggle to configure them. First, we collected sharing policies for photos in a study with(More)
A context-aware personal agent (CPA) adapts to the changing contexts of its user. Platys is an agent-oriented software engineering (AOSE) framework that supports the development and execution of CPAs. Specifically, the framework (1) facilitates modeling a CPA via cognitive constructs, simplifying development, and (2) delegates the concerns of context(More)
Users often share information about others; sometimes this inadvertently violates others&#x2019; privacy. Thus, here the authors propose SoSharP, an agent-based approach to help users maintain their own and others&#x2019; privacy by guiding a selection of sharing policies in multiuser scenarios. SoSharP learns incrementally and asks for users&#x2019; input(More)
Open Multiagent Systems, in which heterogeneous agents interact with each other and organize themselves into Virtual Organizations, demand infrastructures supporting these features. In these systems, dynamic and complex interactions between agents may arise. Interaction Protocols allow the definition of communication patterns. However in open systems,(More)
As the customer has become the product, so (individual) privacy has become the currency: it is traded for access to resources and paid for in the revelation of many small facts and preferences that are just data on their own, but become information as part of larger population. While fiat currency is traceless and untraceable – it is generally impossible to(More)