Moreover, since C-LDA collects pseudo-documents focused on individual target attributes, we are able to link external categories to the generative process by heuristically labeling pseudo-documents with their respective attribute as target category.
we approximate P (w|a), the probability of a word given an attribute, by P (w|d) as obtained from LDA: 2 The dependency paths, together with the set of attribute nouns of interest, have to be manually specified.