Rook is playful data visualization device aiming at the dissemination of air quality data. The Rook unit accesses the database of the Hollandse Luchten (henceforth HL) project, which collects data on air quality in Nord-Holland via a network of sensor kits distributed to the local population and displays it in an interactive way using lights and mist. The eerie and mysterious effect of the colored mist aims at a playful and enticing effect on its users, while, at the same time, spreading awareness on one of the key sustainability issues of the region. People can interact freely with the machine so to explore its working and the data it conveys.This paper aims to contextualize and describe the design process behind the creation of Rook and to propose some reflections on playfulness, citizenship and data visualization.
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Depicting news graphically is considered an apt way to deal with two challenges of modern journalism: to disclose big data, and present the news attractively, visually, and fast to grasp. Newsrooms try their hand at it and are figuring out how to organize production of information visualizations effectively. This study delves into reported obstacles and challenges for the production of news visualizations and suggests that enhancing the quality of information visualization in news media, asks for a clear view on what information visualization means for the production of news, rather than only stimulating journalist to acquire new skills
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The planning and design of an inland container terminal is a complex task due to many interrelated design parameters and interdependent stakeholders. Design tools may support the optimization of technical, economic and logistical values, but this optimization is strongly inhibited by conflicting interests, political and environmental boundaries and strategic stakeholder behavior. The main research question in this contribution is: how can visualization-simulation tools be used in an early stage of complex inter-organizational decision-making on infrastructures in such a way that it enhances the quality and progress of this decision-making? A collaborative design environment was developed for the early phase of inter-organizational decision-making. In the gaming-simulation 'containers a drift', a number of public and private stakeholders try to reach initial agreement on an inland container terminal. A team of process-managers facilitate a collaborative design process and set up a number of ground rules for negotiation. A visualization-simulation tool is used to explore the various technical, economic, political and spatial issues. While negotiating on issues such as location and size of the terminal, small groups of stakeholders interactively draw several terminal layouts. Logistical and economic data, e.g., on ships, containers and costs are entered in a database. The terminal's performance and its dynamic behavior is simulated and assessed. The game was played in three sessions with a total number of 77 students. The evaluation results indicate that the various tools are easy to work with, greatly contribute to the quality and process of negotiation and generate mutual understanding.
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Visualizing news is increasingly considered an apt way for dealing with two challenges of modern journalism: disclosing big data and presenting complex information in a way that is easy to comprehend. Newsrooms are trying their hand at it, and finding ways to organize the production of information visualizations effectively. This study delves into reported challenges for the production of news visualizations and suggests, in line with findings from the research case studies, that the introduction of information visualization in the media requires a convergence of journalistic and visual thinking skills, a more iterative news production process and a revised view of the function of news per se.
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Societal developments show that future demands for visualization can be expected to grow. In many areas of organized human activities organizations may turn away from textual and numerical flatlands, and rely on the convenient and multidimensional digital worlds. Virtual worlds for facility management, design, and planning are no exception, it has an enormous potential to help organizations finding the right spaces that fit the human activities they perform. However, a major take-up of virtual worlds in this context allowing a comparison between present and future, is yet to come. Perhaps such applications, interweaving virtual and real worlds in order to design better facilities are at its beginning stages. One thing is clear: sophisticated applications may have remained absent until today, but it will come to us. Digital worlds start to normalize and the design of organizational spaces can benefit from that development. In this current article the effects of the proposed integrationof visualization with facilities were studied in a case study design. It was assessed whether the participants would actually change the design, without data on the organizational performance, and to what extent this affected staff satisfaction. This study however showed no design changes and no statistically significant changes in the affective responses ofparticipants between pre-test and post-test stages. However, in this current case the sample size may have been too small for generalization purposes. The connection of virtualworlds with organizational data, which were not applied in this current case but were in fact applied in our earlier studies, may be vital for the efficacy of interactive facility management, design, and planning. It is concluded that data on organizational performance serve as a linking pin between facility management and virtual worlds. Interaction can thus be improved by using organizational data as ‘subtitles’ which stimulate a more active use of the visualization.
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An essential condition to use mathematics to solve problems is the ability to recognize, imagine and represent relations between quantities. In particular, covariational reasoning has been shown to be very challenging for students at all levels. The aim of the project Interactive Virtual Math (IVM) is to develop a visualization tool that supports students’ learning of covariation graphs. In this paper we present the initial development of the tool and we discuss its main features based on the results of one preliminary study and one exploratory study. The results suggest that the tool has potential to help students to engage in covariational reasoning by affording construction and explanation of different representations and comparison, relation and generalization of these ones. The results also point to the importance of developing tools that elicit and build upon students' self-productions
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Depicting news graphically is considered an apt way to deal with challenges of modern journalism: to disclose big data, and present news attractively, visually, and fast to grasp. This study delves into reported obstacles and challenges for the production of news visualizations. It focuses on the question: what are the decisive factors that make news visualizations ‘work’ for the different people involved: journalists, designers and the public? To answer the research question, a threefold approach was taken: a review of both pertinent professional literature and academic studies on the production process of infographics; in-depth interviews with data journalists on their most extensive productions; and case studies around the production of three Dutch media visualizations. Results show that the quality and the use of visualization for news stories not only depends on the availability and the skills of designers and data journalists, but even more so on the willingness of the editors-in-chief to initiate experiments with new concepts and tools and to opt for new ways of news gathering and dissemination.
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BACKGROUND: In many genomics projects, numerous lists containing biological identifiers are produced. Often it is useful to see the overlap between different lists, enabling researchers to quickly observe similarities and differences between the data sets they are analyzing. One of the most popular methods to visualize the overlap and differences between data sets is the Venn diagram: a diagram consisting of two or more circles in which each circle corresponds to a data set, and the overlap between the circles corresponds to the overlap between the data sets. Venn diagrams are especially useful when they are 'area-proportional' i.e. the sizes of the circles and the overlaps correspond to the sizes of the data sets. Currently there are no programs available that can create area-proportional Venn diagrams connected to a wide range of biological databases.RESULTS: We designed a web application named BioVenn to summarize the overlap between two or three lists of identifiers, using area-proportional Venn diagrams. The user only needs to input these lists of identifiers in the textboxes and push the submit button. Parameters like colors and text size can be adjusted easily through the web interface. The position of the text can be adjusted by 'drag-and-drop' principle. The output Venn diagram can be shown as an SVG or PNG image embedded in the web application, or as a standalone SVG or PNG image. The latter option is useful for batch queries. Besides the Venn diagram, BioVenn outputs lists of identifiers for each of the resulting subsets. If an identifier is recognized as belonging to one of the supported biological databases, the output is linked to that database. Finally, BioVenn can map Affymetrix and EntrezGene identifiers to Ensembl genes.CONCLUSION: BioVenn is an easy-to-use web application to generate area-proportional Venn diagrams from lists of biological identifiers. It supports a wide range of identifiers from the most used biological databases currently available. Its implementation on the World Wide Web makes it available for use on any computer with internet connection, independent of operating system and without the need to install programs locally. BioVenn is freely accessible at http://www.cmbi.ru.nl/cdd/biovenn/.
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This paper analyzes connectivity and efficiency of a SME network across two industries. These characteristics are likely to be different for networks of various industries. The concept of 'small worlds' is used to judge overall network efficiency. The actual network can be classified as one in which a small world is present. Visualization of the results shows a single core group in the network. It was found that non-profit as well as science actors were overrepresented in the core of the field.
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