The communication of affect, a feeling or emotion, is central to creating engaging visual experiences. We report research into how different colour properties (lightness, chroma and hue) contribute to different affective impressions in information visualization applications. Our results provide initial evidence that colour properties can be manipulated to achieve affective expressiveness in inf...

One of the most popular social networking sites in Brazil is Twitter, which is used by one in five people who have internet at home. Based on that, we investigated how information visualization techniques can improve the analysis of the behavior of Twitter users’. These studies were done through a set of standard visualization techniques implemented in an interactive system entitled DeepTwitter.

We present a study of complex visualization usage by expert meteorological forecasters. We performed a protocol analysis and examined the types of visualizations they examined. We present evidence for how experts are able to make use of complex visualizations. Our ndings suggest that users of complex visualizations create qualitative mental models from which they can then generate quantitative ...

This paper reports results from a study on the adoption of an information visualization system by administrative data analysts. Despite the fact that the system was neither fully integrated with their current software tools nor with their existing data analysis practices, analysts identified a number of key benefits that visualization systems provide to their work. These benefits for the most p...

This paper gives a survey of related work on the information visualization domain and study the real integration of the cartography paradigms in actual information search systems. Based on this study, we propose a semantic visualization and navigation approach which offer to users three search modes: precise search, connotative search and thematic search. The objective is to propose to the user...

ion: how does the design support information structuring and information hiding? Affordances: how does the design show the users what they can do with it? The rest of this paper is divided into four sections. Section 2 discusses the three cognitive aspects used to classify 3D information visualization designs. In Section 3, fifteen important designs are described and compared using the three co...

In this paper we present a new technique for visualizing multidimensional information. We describe objects of a higher dimensional information space as small closed free-form-surfaces in the visualization. The location, size and shape of these surfaces describe the original objects in information space uniquely. The underlying enhanced spring model is introduced. The technique is applied to two...

The enthusiasm for information visualization has generated a wide variety of interesting tools for multi-dimensional, hierarchical, and other kinds of visualizations. However, some designs are readily accepted as understandable and useful, while others are perceived as confusing and useless. Controlled studies have begun to sort of some of the issues, but the insights of designers and usability...

Information visualization is usually used in three areas of application: data analysis, navigation, and knowledge transfer. Here, totally different kinds of visualizations are developed. This article describes an example that integrates the three areas into one single graphical representation. The application context is a sociological model of voting.