Visualization research is concerned with the design, implementation and evaluation of novel methods for effectively communicating information through images. For example: How do we determine how to portray a complicated set of data so that its essential information can be easily and accurately perceived and understood? How can we measure the success of our efforts? Where should we look for insi...

The effect of harmonious versus non-harmonious color combinations in one aspect of information visualization effectiveness is considered. One focus is the relative suitability of two competing paradigms for determining color combinations that are harmonious. A second focus is the suitability of using opposing (i.e., opponent) colors for feature presentation in information visualization. The eff...

Social networking websites have been taking a huge space on the Internet. With millions of members spread across the world, these services connect their users through “friendship” relations, and within a short period of time the information is disseminated in the network. Considering Twitter, we investigated how standard techniques of information visualization can improve the analysis of its us...

Information visualization has not been very successful in pervading areas of literary and scholarly enquiry, such as the analysis of relatively unstructured human-generated text like poetry. The work presented here proposes the use of visualization tools for such scholarly analysis and details the operation of a tool developed for this purpose.

This paper provides an assessment of the most recent empirical research into the effectiveness of argument visualization tools. In particular, the methodological quality of the reported experiments and the conclusions drawn from them are critically examined. Their validity is determined and the methodological differences between them are clarified. The discrepancies in intended effects of use e...

Weather conditions affect multiple aspects of human life such as economy, safety, security, and social activities. For this reason, weather forecast plays a major role in society. Currently weather forecasts are based on Numerical Weather Prediction (NWP) models that generate a representation of the atmospheric flow. Interactive visualization of geo-spatial data has been widely used in order to...

We conducted a between-subject experiment with 32 participants to explore how two different models of information visualization delivery influence narratives constructed by audiences. The first model involves direct narrative by a speaker using visualization software to tell a data story, while the second model involves constructing a story by interactively exploring the visualization software....

The context-aware discovery and ranking of visualization components is a crucial part of an adaptive, automated information visualization system. Since existing approaches allow for using expert knowledge formalized a priori, insights gained during the visualization processes by the users, e. g., suitable data-visualization combinations, are mostly neglected. In this paper, we propose a concept...

In this work, we present a novel approach for data visualization based on interactive dimensionality reduction (iDR). The main idea of the paper relies on considering for visualization the intermediate results of non-convex DR algorithms under changes on the metric of the input data space driven by the user. With an appropriate visualization interface, our approach allows the user to focus on t...