Benchmarks and models for entity-oriented polarity detection

Lidia Pivovarova, Arto Klami, Roman Yangarber

Abstract
We address the problem of determining entity-oriented polarity in business news. This can be viewed as classifying the polarity of the sentiment expressed toward a given mention of a company in a news article. We present a complete, end-to-end approach to the problem. We introduce a new dataset of over 17,000 manually labeled documents, which is substantially larger than any currently available resources. We propose a benchmark solution based on convolutional neural networks for classifying entity-oriented polarity. Although our dataset is much larger than those currently available, it is small on the scale of datasets commonly used for training robust neural network models. To compensate for this, we use transfer learning—pre-train the model on a much larger dataset, annotated for a related but different classification task, in order to learn a good representation for business text, and then fine-tune it on the smaller polarity dataset.
Anthology ID:
N18-3016
Volume:
Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 3 (Industry Papers)
Month:
June
Year:
2018
Address:
New Orleans - Louisiana
Editors:
Srinivas Bangalore, Jennifer Chu-Carroll, Yunyao Li
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
129–136
Language:
URL:
https://aclanthology.org/N18-3016
DOI:
10.18653/v1/N18-3016
Bibkey:
Cite (ACL):
Lidia Pivovarova, Arto Klami, and Roman Yangarber. 2018. Benchmarks and models for entity-oriented polarity detection. In Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 3 (Industry Papers), pages 129–136, New Orleans - Louisiana. Association for Computational Linguistics.
Cite (Informal):
Benchmarks and models for entity-oriented polarity detection (Pivovarova et al., NAACL 2018)
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https://preview.aclanthology.org/nschneid-patch-5/N18-3016.pdf
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