We also create a family of cut-based subjectivity detectors; these take as input the set of sentences appearing in a single document and determine the subjectivity status of all the sentences simultaneously using per-item and pairwise relationship information.
for a given document, we use the construction in Section 2.2 to build a graph wherein the source s and sink t correspond to the class of subjective and objective sentences, respectively, and each internal node v i corresponds to the document's i th sentence s i .