Mobile applications have become a commodity in multiple daily scenarios. Their increasing complexity has led mobile software ecosystems to heterogeneous terms of hardware specifications, features and context use, among others. For their users, fully exploiting potential challenging. While enacting systems with adaptation mechanisms proven ease this burden from devices present specific challenge...

In this paper, we focus on the problem of incorporating user input into an automated document clustering process to improve clustering performance. Before the start of the clustering process, the user can provide a small set of labeled documents that form the initial descriptions of the clusters. If the user provides no initial information, the clustering process has to form the initial descrip...

With the release of SentiWordNet 3.0 the related Web interface has been restyled and improved in order to allow users to submit feedback on the SentiWordNet entries, in the form of the suggestion of alternative triplets of values for an entry. This paper reports on the release of the user feedback collected so far and on the plans for the future.

In Multi-user MIMO (MU-MIMO) downlink system, suitable user selection schemes can improve spatial diversity gain. In most of previous studies, it is always assumed that the base station (BS) knows full channel state information (CSI) of each user, which does not consider the reality. However, there are only limited feedback bits in real system. Besides, user fairness is often ignored in most of...

Spreadsheets are among the most widely used end-user programming systems. According to some estimates, up to 90% of spreadsheets have non-trivial errors in them [7]. In many cases, spreadsheet errors have resulted in huge financial losses for companies. Spreadsheets are also in use in Science and Mathematics education in schools primarily because they offer a flexible modeling environment. With...

Data integration is a challenging problem in many application areas. Approaches mostly attempt to resolve semantic uncertainty and conflicts between information sources as part of the data integration process. In some application areas, this is impractical or even prohibitive, for example, in an ambient environment where devices on an ad hoc basis have to exchange information autonomously. We h...

End-user feedback is becoming more important for the evolution of software systems. There exist various communication channels for end-users (app stores, social networks) which allow them to express their experiences and requirements regarding a software application. End-users communicate a large amount of feedback via these channels which leads to open issues regarding the use of end-user feed...