In the field of the architectural heritage, the representation of artefacts, particularly for communication purposes, has benefited from the development of computer-based modelling techniques in fields ranging form archaeology to geography. But numerous experts in the above mentioned heritage field have come to question the readability of realistic models inside which the hypothetical nature of...

In this paper we present a framework for interactive volume rendering of high-dimensional flow simulation data. Our approach combines information visualization, flow visualization, as well as volume visualization techniques for volumetric flow visualization. Interactive feature specification by use of multiple linked views and composite non-binary brushes enables selection and multiple definiti...

Despite its often technical nature, visualization is in many ways a form of visual representation. Just how visualization relates to illustration, information graphics, digital art, visual languages, etc., is nonetheless poorly understood. We propose a theory that embeds information visualization within other visual traditions in terms of criteria that are not purely technical: dependence on da...

This paper provides an overview of the dynamics underlying the process of collecting and analyzing raw data from collaborative learning activities. It is based on the research background which the implementation of DIAS relied upon; a system aiming at supporting asynchronous discussions’ participants on an awareness and metacognition level via visualized interaction analysis indicators. Open qu...

This paper presents StepTree, an information visualization tool designed for depicting hierarchies, such as directory structures. StepTree is similar to the hierarchy-visualization tool, Treemap, in that it uses a rectangular, space-filling methodology, but differs from Treemap in that it employs three-dimensional space, which is used to more clearly convey the structural relationships of the h...

There is widening use of open learner models (OLM) to support learning and promote metacognitive behaviours, but learner model visualisations do not typically include information about uncertainty. We consider findings from the field of information visualisation and apply these to OLMs. Examples are given for how uncertainty visualisation might be usefully achieved.

This paper discusses visualisation of climate data. The possible use of an information mural for this purpose is explored as well as the potential of enhancing the visualisation with motion. It is investigated how these techniques help in the analysis of data distribution regarding different data dimensions such as temperature and precipitation. The work is accompanied by a presentation of the ...

We examine Illinois educational data from standardized exams and analyze primary factors affecting the achievement of public school students. We focus on the simplest possible models: representation of data through visualizations and regressions on single variables. Exam scores are shown to depend on school type, location, and poverty concentration. For most schools in Illinois, student test sc...

Information Visualization produces a visual representation of abstract data in order to facilitate a deeper level of understanding of the data under investigation. This paper introduces ViCo, a metric for assessing Information Visualization complexity. The proposed metric allows for the measurement of Information Visualization complexity with respect to tasks and users. The algorithm for develo...