There are also lots of studies for cross-domain sentiment analysis (Blitzer et al., 2007;Tan et al., 2007;Li et al., 2009;Bollegala et al., 2011;He et al., 2011;Glorot et al., 2011).
as an example shown in Figure 2, we can extract two paths or relationships between topic and sentiment words from the dependency tree of the sentence "The movie has good script": "NNamod-JJ" from "script" and "good", and "NN-nsubj-VB-dobj-NN-amod-JJ" from "movie" and "good".