Smartphones contain a large amount of highly personal data, much of it accessible to third-party applications. Much of this information is safeguarded by a permission model, which regulates access to this information. This work primarily focuses on improving the Android permission model, which is known to have notoriously large amounts of sensitive data leakage, but many of its findings can be ...

Evaluating user experience (UX) with respect to previous experiences can provide insight into whether a product can positively affect a user’s opinion about a technology. If it can, then we can say that the product provides a positive UX. In this paper we propose a method to assess the UX in BCI systems with respect to user expectations. We demonstrate the application of our method in a prelimi...

Symbolic debuggers are system-development tools that can accelerate the validation speed of behavioral specifications by allowing a user to interact with an executing code at the source level. In response to a user query, the debugger must retrieve and display the value of a source variable in a manner consistent with user expectations with respect to the source statement where execution has ha...

The main drawbacks of sequential pattern mining have been its lack of focus on user expectations and the high number of discovered patterns. However, the solution commonly accepted – the use of constraints – approximates the mining process to a hypothesis-testing task. In this paper, we propose a new methodology to mine sequential patterns, keeping the focus on user expectations, without compro...

The evaluation in technical invention is important because it tests functionality of the intervention and it forms an overall point of view of a user. This study aims to introduce an approach for collecting user expectations with Q methodology in Safe Private Home for Elderly Persons (CARE), which is a new development in ambient assisted living. CARE is a sophisticated fall detection system use...

The use of computers to mediate social interactions (e.g. blogs, chatting, facebook, second life) creates the possibility of providing software to support social awareness in a range of ways. In this paper we focus on monitoring expectations and consider how a user who is not a programmer or logician might specify expectations to be monitored. We propose a novel approach where the user provides...

Much work remains to be done with subjective evaluations of speech-based and multimodal systems. In particular, user experience is still hard to evaluate. SUXES is an evaluation method for collecting subjective metrics with user experiments. It captures both user expectations and user experiences, making it possible to analyze the state of the application and its interaction methods, and compar...

In this paper I describe how miscommunication problems are dealt with in the spoken language system DIALOGOS. The dialogue module of the system exploits dialogic expectations in a twofold way: to model what future user utterance might be about (predictions), and to account how the user’s next utterance may be related to previous ones in the ongoing interaction (pragmaticbased expectations). The...