which subclass of information filtering system was work of John Thomas Riedl
John T. Riedl John Thomas Riedl (January 16, 1962 – July 15, 2013) was an American computer scientist and the McKnight Distinguished Professor at the University of Minnesota. His published works include highly influential research on the social web, recommendation systems, and collaborative systems.
Cranfield experiments The Cranfield experiments were computer information retrieval experiments conducted by Cyril W. Cleverdon at Cranfield University in the 1960s, to evaluate the efficiency of indexing systems.