We’re interested in allowing users to create topic maps for a search. We have tried this ‘mind map’ approach for a search for prostate cancer. There are two examples below, the first based on the top 100 search results and the second on the top 300 results.

I think these are really interesting, giving users an instant overview of the topic. I dare say it could be used for search refinement. By that, start with a broad search and then decide to focus on diagnosis or focal therapy…

Mind Map using top 100 results

Mind Map using top 300 results