[Corpora-List] Hierarchically classified corpora?

[Daniel Beck]

Hello corpora mailing list,

I'm working on my master thesis "Accurate Hierarchical Classification 
using NLP Techniques". I hope to improve the accuracy of hierarchical 
classification on English and German corpora by using additional 
information extracted with aid of linguistic tools.

I would like to ask where I can obtain corpora which are already 
classified in a hierarchy. I need several English and German corpora. I 
would prefer if the topics of the corpora are about linguistic or 
computer science.

Regards & Thanks,

Daniel