Improving Sentiment Classification in Slovak Language

Samuel Pecar, Marian Simko, Maria Bielikova


Abstract
Using different neural network architectures is widely spread for many different NLP tasks. Unfortunately, most of the research is performed and evaluated only in English language and minor languages are often omitted. We believe using similar architectures for other languages can show interesting results. In this paper, we present our study on methods for improving sentiment classification in Slovak language. We performed several experiments for two different datasets, one containing customer reviews, the other one general Twitter posts. We show comparison of performance of different neural network architectures and also different word representations. We show that another improvement can be achieved by using a model ensemble. We performed experiments utilizing different methods of model ensemble. Our proposed models achieved better results than previous models for both datasets. Our experiments showed also other potential research areas.
Anthology ID:
W19-3716
Volume:
Proceedings of the 7th Workshop on Balto-Slavic Natural Language Processing
Month:
August
Year:
2019
Address:
Florence, Italy
Venue:
BSNLP
SIG:
SIGSLAV
Publisher:
Association for Computational Linguistics
Note:
Pages:
114–119
Language:
URL:
https://aclanthology.org/W19-3716
DOI:
10.18653/v1/W19-3716
Bibkey:
Cite (ACL):
Samuel Pecar, Marian Simko, and Maria Bielikova. 2019. Improving Sentiment Classification in Slovak Language. In Proceedings of the 7th Workshop on Balto-Slavic Natural Language Processing, pages 114–119, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
Improving Sentiment Classification in Slovak Language (Pecar et al., BSNLP 2019)
Copy Citation:
PDF:
https://preview.aclanthology.org/ingestion-script-update/W19-3716.pdf
Code
 SamuelPecar/Slovak-sentiment-analysis