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Treemaps for space-constrained visualization of hierarchies

Treemaps for space-constrained visualization of hierarchies
Started Dec. 26th, 1998 by Later updates by Ben Shneiderman and Catherine Plaisant - Last update Sept 2014 Our treemap products: Treemap 4.0: General treemap tool (Free demo version, plus licensing information for full package) PhotoMesa: Zoomable image library browser (Free demo version, plus licensing information for full package) Treemap Algorithms and Algorithm Animations (Open source Java code) A History of Treemap Research at the During 1990, in response to the common problem of a filled hard disk, I became obsessed with the idea of producing a compact visualization of directory tree structures. Since the 80 Megabyte hard disk in the HCIL was shared by 14 users it was difficult to determine how and where space was used. Tree structured node-link diagrams grew too large to be useful, so I explored ways to show a tree in a space-constrained layout. My initial design simply nested the rectangles, but a more comprehensible design used a border to show the nesting.

http://www.cs.umd.edu/hcil/treemap-history/

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Liste des softs de mind mapping Visual Cards for Collaboration and Team Creativity Making the Complex Clear Visual Literacy for Managers - How Sketching enables Visual Problem Solving and Communication (get the hardcopy edition at sketchingatwork.com) How Data Visualization Can Perpetuate Inequality Sometimes, whether we know it or not, the choices we make when we visualize data can reinforce and even perpetuate racial disparity and it’s time that we talk about it. The lull of the computer monitor and the belief we are just working with numbers can make us lose sight of the fact that there are people behind this data who have given of themselves, sometimes unwillingly, and that we have a responsibility to them when we visualize. There’s a lot to say on this topic (maybe because it hasn’t been discussed out in the open very much).

Concept map An Electricity Concept Map, an example of a concept map A concept map or conceptual diagram is a diagram that depicts suggested relationships between concepts.[1] It is a graphical tool that designers, engineers, technical writers, and others use to organize and structure knowledge. A concept map typically represents ideas and information as boxes or circles, which it connects with labeled arrows in a downward-branching hierarchical structure. 15 Effective Tools for Visual Knowledge Management Since I started my quest a few years ago searching for the ultimate knowledge management tool, I’ve discovered a number of interesting applications that help people efficiently organize information. There certainly is no shortage of solutions for this problem domain. Many tools exist that offer the ability to discover, save, organize, search, and retrieve information. However, I’ve noticed a trend in recent years, and some newer applications are focusing more on the visual representation and relationship of knowledge.

Ben Shneiderman Current Position Professor: Computer Science, UMIACS Founding Director: Human Computer Interaction Lab (1983-2000) Affiliate Professor: Institute for Systems Research Affiliate Professor: College of Information Studies - Maryland's iSchool Research Interests yEd - Graph Editor yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button. yEd is freely available and runs on all major platforms: Windows, Unix/Linux, and Mac OS X. The latest release is version 3.12.2 Key Features

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Vintage data visualization: 35 examples from before the Digital Era This is a guest post by Tiago Veloso, the founder of Visual Loop, a collaborative digital environment for everything related to information design and data visualization. He lives in Brazil, and you can connect with him online on Twitter and LinkedIn. If you follow us regularly on Visual Loop, you’ve probably noticed we like to featured not only modern interactive visualizations and infographics, but also examples from the past, from the time when there were no computer softwares to help analyzing and designing and no Internet to access and share data.

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