Difference between semantic web federation engines and question answering systems

Hi,

I would like to know the difference between a federation engine and a
question answering system. I have read some articles on federation engines
and question answering systems on LOD. But couldn't identify the difference
between them.

Thanks.

Best regards,
Thilini Cooray.

Received on Tuesday, 12 August 2014 06:14:07 UTC