Headstart v2.9

Version 2.9 is an interim release on the way to Headstart 3. It represents a first look at many of the improvements that we have scheduled for version 3. A major architectural upgrade is that the visualization components have been decoupled with the help of the mediator pattern. We have also implemented many improvements to the visualization interface, such as search highlighting and support for multiple languages. The PLOS search has been extentded to include a number of options, and more descriptive labels for research areas using a TF-IDF labelling algorithm.

This version will be used in the initial release of Open Knowledge Maps.