To the best of our knowledge, this is the first work that aims at evaluating directly the joint information of the sentiment and aspect assignment at the sub-sentential level of full reviews; most existing studies either focus on indirect evaluation of the produced models (e.g., classifying the overall sentiment of sentences (Titov and McDonald, 2008a;Brody and Elhadad, 2010) or even reviews (Nakagawa et al., 2010; Jo and Oh, 2011)) or evaluated solely at the sentential or even document level.
in order to evaluate our methods, we created a new dataset which will be publicly released.