Tag Archives: link

Representing Directionality in Network Visualizations

Guess which link-map representation above is the most efficient for showing directionality? Information Aesthetics blog has an interesting article about the different techniques for showing the “from-” and “to-” of network charts.

Networks are often visualized using points and interconnecting lines, with triangular arrowheads at one or both ends to show any directionality between the different points. Although such a standard arrow representation seems intuitive, it can lead to problems in dense graphs that contain many incoming or outgoing relationships. Furthermore, since the arrowheads often have approximately the same size and aspect ratio as the small circles they connect, the graph as a whole might be perceived as cluttered with so much visual detail to the point of being distracting.

via What is the Best Way to Represent Directionality in Network Visualizations? – information aesthetics.


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Filed under Analysis Ideas, How-To, mapping, visualization

NNDB: Tracking the entire world

If this doesn’t bring to mind Analyst’s Notebook and Palantir, what would? There have been many web-based link diagrammers released (tracking facebook friends, twitter topics, etc), but this one seems to be usable for generating actual results.

The NNDB Mapper is a visual tool for exploring the connections between people in NNDB, linking them together through family relations, corporate boards, movies and TV, political alliances, and shadowy conspiracy groups. Maps can be saved and shared for others to explore.

You start with a search, say, Lynx Gaede, 1/2 of the Nazi teenie-bopper twin band Prussian Blue. Here is her profile page on NNDB: http://www.nndb.com/people/053/000113711/

Then, click the NNDB Mapper in the top right corner.  http://mapper.nndb.com/start/?id=113711

You get a simple entity link map. Hover the mouse over April Gaede, the stage mom, and in the resulting dropdown, click “Expand 3 Nodes.” Then do the same with National Alliance, and you will see luminaries like Kevin Strom, founder of the National Vanguard.

In this way you can being uncovering connections between people. The database appears to be crowd-sourced, so it gets more useful and complete the more people use it. Neat.

The maps can get complicated. Here’s the New York Times link map.

via NNDB: Tracking the entire world.

While we’re on it, who are Prussian Blue? Here’s the documentary: http://www.archive.org/details/MichielSmit.comPrussionBlueMichielSmit.com

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Filed under Analysis Ideas, Web tool