\input zb-basic \input zb-ioport \iteman{io-port 70644980} \itemau{Jethava, Vinay; Calder\'on-Benavides, Liliana; Baeza-Yates, Ricardo A.; Bhattacharyya, Chiranjib; Dubhashi, Devdatt} \itemti{Scalable multi-dimensional user intent identification using tree structured distributions} \itemso{SIGIR, 395-404 (2011).} \itemcc{} \itemut{} \itemli{doi:10.1145/2009916.2009971} \end