MPQA Corpus

We describe the implementation of reranking models for fine-grained opinion analysis – marking up opinion expres- sions and extracting opinion holders. The toreranking approach makes it possible model complex relations …...

We demonstrate that relational features derived from dependency-syntactic and semantic role structures are useful for the task of detecting opinionated expressions in natural-language text, significantly im- proving over conventional models …...

AbstractBoth sentiment and event factuality are fundamental information levels for our understanding of events mentioned in news texts. Most research so far has focused on either modeling opinions or factuality. …...