Definition 1 (T ransCap) Given a source document-level corpus C D and the learning task T D , a target aspect-level corpus C A and the learning task T A , TransCap aims to help improve the learning of the target predictive function f A (•) in T A using the knowledge transferred from T D .
aspect-level Sentiment Classification Traditional methods for sentiment classification (Nakagawa et al., 2010;Jiang et al., 2011;Taboada et al., 2011;Mohammad et al., 2013) mostly use machine learning algorithms to build sentiment classifiers with carefully extracted features, which take massive time and resources to collect.