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The ubiquity of the Internet and email, have provided a mostly insecure communication medium for the consumer. During the last few decades, we have seen the development of several ways to secure email messages. However, these solutions are inflexible and difficult to use for encrypting email messages to protect security and privacy while communicating or collaborating via email. Under the current...
Recent developments in the field of wearable computing have enabled the deployment of wearable sensors in many area, such as health care and sports. Continuous monitoring of a person's physical activity and movement data facilitates a physician's — or another care giver's — ability to simultaneously monitor multiple patients remotely. Care givers can access real-time data acquired from different sensors,...
Web visualizations have become an integral tool for representing data in an accessible and intelligible format. This paper presents a new workflow, Quick Vis, which enables an analyst to inspect data sets and manipulate properties within any data set. This subsequently engages our analytic engine, saves each property set as a profile (discussed in Section 5), and allows comparisons between profiles...
As the number and complexity of visualization techniques have grown, it has become progressively more difficult to make a decision as to which technique to employ for any given situation or application. A particular case is that of multidimensional data visualization utilizing projections, which have gained much attention lately and are being utilized in a growing number of applications. With their...
Cloud computing is rapidly becoming one of the most prevailing computing platforms. At the same time, the Web browser has become an application platform. Mobile+Cloud, the combination of mobile devices and cloud-based computing is changing how users produce, consume, and use computing resources. With the introduction and penetration of HTML5, and, in particular, its visual capabilities in the form...
Cryptography libraries are inflexible and difficult for developers to integrate with their applications. These difficulties may be contributing to applications, like PGP, that are non-intuitive for end-users and are often used improperly or not at all. In this paper we argue that the best place for cryptography to be implemented is at the Operating System level rather than the current application-layer...
During exploratory search sessions, users often experience difficulty finding and re-finding high-quality results that are pertinent to their search goals. Various studies have found that search sessions are unsuccessful, end prematurely, and/or lead to user frustration. Feild and Allan found, in their research on “Modeling searcher frustration”, that 36% of queries submitted in search sessions end...
It has been long thought that the main cause of a heart attack is the narrowing of an artery from the buildup of fatty plaque inside the artery wall. Postmortem autopsy studies on patients who have died after a myocardial infarction (heart attack) found that many of those did not have their arteries severely narrowed by plaque. Instead, thrombosis (blood clots)near ruptured lesions were identified...
This paper describes research activities in the University of Massachusetts--Lowell's ongoing Exvis project, a perception-driven approach to the visualization and exploration of data. We discuss the evolution of the Exvis exploratory visualization systems and provide a variety of examples of multidimensional data representations based on visual perception of line texture and color, and on auditory...
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