Hiroaki Ohshima Adam Jatowt Satoshi Oyama Satoshi Nakamura Katsumi Tanaka Towards Improving Web Search: A Large-Scale Exploratory Study of Selected Aspects of User Search Behavior. 379-386 2009 WISE http://dx.doi.org/10.1007/978-3-642-04409-0_38 conf/wise/2009 db/conf/wise/wise2009.html#OhshimaJONT09