The increasing availability of enormous data about users online, along with availability of sophisticated tools and technology to store, aggregate, and analyze data for secondary use has raised concerns about how to balance the opportunity for secondary use of data with the need to protect the user privacy that may result from harmful use. To develop a privacy protection mechanism that is usefu...

One of the major’s contributions of Collaborative Wi-Fi Networks is to provide a widely distributed Wi-Fi access network in a low cost and ubiquitous way. In order to promote the participation of more actors (both Wi-Fi providers and users) and the success of this kind of emerging solutions is important to satisfy the expectations that the user has regarding the network and the services, increa...

Current systems complexity has reached a degree that requires addressing conception and design issues while taking into account environmental, operational, social, legal and financial aspects. Therefore, one of the main challenges is the way complex systems are specified and designed. The exponential growing effort, cost and time investment of complex systems in modeling phase emphasize the nee...

In this paper we present a recently started research project called DashGov. The aim of this project is to develop an integrated instrument for the evaluation and improvement of the performance of e-government applications, based on indepth and systematic measurement and knowledge of user demands. This dashboard will be used for both preand postlaunch evaluation of e-government applications (on...

Adapting graphical user interface (GUI) to meet higher level of usability for users is one of the most interesting questions of today’s mobile computation. Users should have GUI constructed to meet their needs, habits and expectations. In this paper, we discuss existing solutions and present a solution based on mobile agents. Mobile agents ’learn’ users’ habits, cooperate with other agents and ...

For many people, search engines are a crucial entry point for their online activities today. People use search services to find relevant information of their interest on the web. Measuring the quality of search systems is a challenging task. User expectations have been proposed as one possible parameter for user satisfaction. The so-called confirmation/disconfirmation (C/D) paradigm, a widely u...

Operators have often struggled to find connections between user experience and what the network delivers. However, a new methodology makes it possible to introduce and monitor the right metrics. By continuously aligning these metrics with an ever-changing market situation and growing subscriber expectations, operators can place consumers at the center of investment decisions to improve user exp...

Usage and user feedback about a state digital library, in which the developers/designers, content providers, different types of libraries and their staffs, and a variety of user groups represent a loose federation of separate organizations with diverse expectations and needs, are investigated. Through corroboratory evidence from usage statistics of Internet-based database services available thr...

One of the common problems with clustering is that the generated clusters often do not match user expectations. This paper proposes a novel probabilistic framework that exploits supervised information in a discriminative and transferable manner to generate better clustering of unlabeled data. The supervision is provided by revealing the cluster assignments for some subset of the ground truth cl...