The idea of Stream Reasoning originated in Politecnico di Milano in 2007, when I and Stefano Ceri were helping writing the LarKC project proposal. In the last three years, lot of investigation has been done.
Davide Barbieri, Daniele Braga, Stefano Ceri, Michael Grossniklaus, I defined the notion of RDF Stream together with an extension of SPARQL for continuous querying RDF Stream (i.e., our C-SPARQL). Most recently, we also investigated techniques for incremental reasoning on RDF streams. I was invited to give a key note in NeFoRS 2010 and I though that I should have used this opportunity to tell where Stream Reasoning research got so far.
Click on the image hereafter to see the slides!
Keep an eye on http://streamreasoning.org