Qualitative results demonstrate the utility of integrating opinions based on structured ontology as well as the generalizability of proposed methods.
formally, the input is a subset of selected aspects A ; each A i ∈ A is aligned with a set of relevant opinion sentences We define a coherence measurement function over sentence pairs Co(S i,k , S j,l ), which is set to 1 iff S i,k appears before S j,l in the same article.