Heat Map To Visually Detect Spam Across Networks

Comment

Comment by Gertjan de Lange on September 8, 2008 at 3:25pm

You can also use 'treemaps'. For example with the tool TreeMaps developed by Uni Maryland. No developments are done at this point (as far as I know), but the tool is freely downloadable for testing (http://www.cs.umd.edu/hcil/treemap). Upload a column based data file and you can slice and dice all you want and get these type of trends. Pretty cool I think.
A nice history about these objects can be found at http://www.cs.umd.edu/hcil/treemap-history.

Comment by Mehran Gomari on September 7, 2008 at 11:38pm

You can also write custom S codes to produce similar graphs

Comment by Vincent Granville on September 7, 2008 at 10:47pm

I was told that Tableau (a data mining vizualization software) offers similar features.

Comment by AJAY OHRI on August 26, 2008 at 10:40pm

how would the heat map for analyticbridge. site look like ?

Comment by Vincent Granville on August 26, 2008 at 11:12am

The "expected count" for cell xy was computed using as the product of x- and y- marginal counts divided by total count.

Comment by Vincent Granville on August 26, 2008 at 11:09am

It was produced with the new version of Excel (.xlsx), with conditional formatting of the cells based on cell value. Then I selected a range of cells, cut and paste from Excel into Paintbrush, and saved it as an image (png format, a format that I strongly recommend for images).

Comment by AJAY OHRI on August 26, 2008 at 12:58am

where is this used ? which software ,hardware ? whats the source.

this is right out of the Matrix .Cool !