I have finally finished my Digg Treemap application. The application is called DiggGraphr (couldnt call it DiggMapper since everyone expected a yahoo map to come up at some time). Anyway here it is in all its glory.
The application was developed in Flex since I am porting my treemap classes to Flex right now. However the core logic is still the same as my earlier As3 implementation.
You can right click to choose which page you want to go to (Digg or source). You can also click on the channels button to choose a particular channel you want to read. Drag the slider around to change the number of stories you want to see in the containers.

This application will die soon since today Digg clamped its api behind a application id and I dont have one yet. But before it dies, do Digg it if you like it.

Link: DiggGraphr

Of late, I have started reading quite a bit on Recommendation Systems and I came accross this interesting paper on the topic. The cool thing is that it talks about virtual co.mmunities based on recommendation systems (I am sure Amazon uses a similar algorithm, since this seems pretty common sense).

On a side note, the paper did lead me to finding out what a Pearson’s Correlation is. Pretty neat. Further links on this entry as I come across ‘em

Links:
Content-Boosted Collaborative Filtering
Bunch o’ papers