recommender systems
I'm still on this kick on recommender systems. I'm further encouraged by happening on a report on "discoverability" by the Minnesota librarians when looking for something else on JR's blog. The report agrees that recommender systems are a more important trend.
In standard information retrieval stuff, you're going from whatever query the person puts in (which can be very, very different from their information need see Taylor [1]) and you're computing similarity between those terms and what ever representation you have of information in the system. Smarter systems do a lot more than that, but…