Yeah, the bag of words and K-Rank reduction stuff basically is LSA. I've written an LSA implementation a few years ago for a BI product ( written about http://

Yeah, the bag of words and K-Rank reduction stuff basically is LSA. I've written an LSA implementation a few years ago for a BI product ( written about http://www.innoveerpunt.nl/interactief-innoveren/innoveerpunt-netwerk/groups/viewdiscussion/371-tussen-de-regels-door-lezen-innovatieve-zoekmachine-verbetert-intelligence-van-bedrijven?groupid=11 http://www.innoveerpunt.nl/interactief-innoveren/innoveerpun... sorry that it's Dutch :) ). I wonder how well it works; my takeaway was that you need to tweak the internal thresholds and matrix sizes a lot to get the optimal results, which in turn is highly dependant on the datasets you use (which is also made very clear in every LSA paper you'll read).