Abstract de la publi numéro 10220
The Opinion Detection from blogs has always been a challenge for researchers.
However with the introduction of Blog track in TREC 2006, a considerable
improvement has been seen in this field at document level. But now it is the
time when researchers are thinking to shift their orientation from opinion
finding at document level to opinion finding at sentence or passage level. In
this paper, we have investigated the challenges the researchers might face with
sentence-level opinion detection and have tried to demonstrate them with few
examples. Our work also includes annotation of a small set of opinionated
sentences by two annotators. They annotated the sentences by labels Positive or
Negative. The results of annotation prove that task of opinion detection on
sentence-level is more challenging task than opinion detection on document
level. In addition, we have also discussed the importance of sentence-level
opinion detection. Our work can give a new direction to researchers to think
and work on.