Introduction Public health surveillance largely relies on the use of surveillance systems to facilitate the identification and investigation of epidemiologic concerns reflected in data. In order to support public health response, these systems must present relevant information, and be user-friendly, dynamic, and easily-implementable. The abundance of R tools freely-available online for data ana...

This paper makes two contributions at two different levels: one is about a design principle of HCI, namely the provision of personalized and dynamic feedback in interactive applications; the second contribution is a demonstration of the need for visual and dynamic representations to explain the design of interactive interfaces. At the first level, in the context of patients managing their healt...

This paper makes two contributions at two different levels: one is about a design principle of HCI, namely the provision of personalized and dynamic feedback in interactive applications; the second contribution is a demonstration of the need for visual and dynamic representations to explain the design of interactive interfaces. At the first level, in the context of patients managing their healt...

We present an experiment on depth cues for knot visualization in desktop virtual reality (fishtank VR). We used a within-subjects experiment to investigate stereoscopic visuals and 3D lit shading. Participants were required to count crossings in visualized knots – a fundamental task in classical knot diagram interpretation. Participants made significantly more errors with stereoscopic visuals t...

In recent years, PowerPoint presentations have become the medium of choice for high school and college educators. Research on images in these presentations has determined that relevant diagrams and graphics improve learning in science and engineering fields; however, there has been little research on images in the humanities, where diagrams are less common. This study first surveyed college stu...

This paper summarizes the literature on visualisation and information visualisation and provides a broad view of available systems and techniques. The paper also argues that the use of visuals can help conveying information, and that can be an advantage to the use of visualisation and information visualisation to support information management.