TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Wiegand, Michael
A1  - Schulder, Marc
A1  - Ruppenhofer, Josef
T1  - Opinion Holder and Target Extraction for Verb-based Opinion Predicates – The Problem is Not Solved
T2  - Proceedings of the 6th Workshop in Computational Approaches to Subjectivity and Sentiment Analysis. Lisbon, Portugal:
N2  - We offer a critical review of the current state of opinion role extraction involving opinion verbs. We argue that neither the currently available lexical resources nor the manually annotated text corpora are sufficient to appropriately study this task. We introduce a new corpus focusing on opinion roles of opinion verbs from the Subjectivity Lexicon and show potential benefits of this corpus. We also demonstrate that state-of-the-art classifiers perform rather poorly on this new dataset compared to the standard dataset for the task showing that there still remains significant research to be done.
KW  - opinion role extraction
KW  - opinion verbs
KW  - Propositionale Einstellung
KW  - Automatische Sprachanalyse
KW  - Korpus <Linguistik>
KW  - Verb
Y1  - 2015
U6  - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-50835
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-50835
UR  - https://aclweb.org/anthology/W/W15/#0300
SN  - 978-1-941643-32-7
SB  - 978-1-941643-32-7
SP  - 148
EP  - 155
PB  - The Association for Computational Linguistics
CY  - New York
ER  -