Kazutaka Shimada Tsutomu Endo Seeing Several Stars: A Rating Inference Task for a Document Containing Several Evaluation Criteria. 1006-1014 2008 PAKDD http://dx.doi.org/10.1007/978-3-540-68125-0_106 conf/pakdd/2008 db/conf/pakdd/pakdd2008.html#ShimadaE08