Monthly Archives: October 2011

Hadoop and Pig at Twitter

Related to the previous post on how Hadoop is used at Facebook, there is an interesting slide deck on how Twitter is using Hadoop and Pig. Take a look.

The video of the original talk is available at Yahoo!. Very impressive to see the much less code you have to write in Pig when compared to the native Java MapReduce jobs (around 20:00).

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Posted by on 31.10.2011 in Hadoop, Pig, Zookeeper


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How Facebook is using Hadoop…


Posted by on 31.10.2011 in Hadoop, Technologies


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Demystifying Open Access

I found a very good deck of slides that try to shed light on the myths around the Open Access topic. It’s well worth going through and checking some of the references.

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Posted by on 31.10.2011 in Uncategorized


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Links and tools on Visualization and Visual Analytics

Here are some resources that show what is feasibel with visualizations and visual analytics. You can use them as steady source of inspiration

Some concrete examples


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Slides from the final knowAAN presentation

Here are the slides from the final knowAAN presentation.


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On the (limited) power of Bibliometrics

There is an interesting presentation about bibliometrics and how they can help analyzing Research Networks and the performance of objects in those Research Networks (authors, paper, institutions etc.). This is especially important for the topic on Social Network Analysis and Scientometrics…



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ScienceTable and Muse

I talked about the two applications of a multitouch table from the colleagues Bram Vandeputte (Blog, Twitter) and Till Nagel (Blog, Twitter) before. They used a multitouch table to visualize the co-author community of a conference series (here EC-TEL) and to visualize geospatial patterns of cooperation. Bram posted about the original version of his ScienceTable here and meanwhile there is a new version. Till posted about his interactive geospatial visualization here and here. He also provides a Processing.js reference implementation of “Exploding Menus“. References to the works are in the Mendeley group for the project group.


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