Disney at IEST 2018: Predicting Emotions using an Ensemble

Wojciech Witon, Pierre Colombo, Ashutosh Modi, Mubbasir Kapadia


Abstract
This paper describes our participating system in the WASSA 2018 shared task on emotion prediction. The task focuses on implicit emotion prediction in a tweet. In this task, keywords corresponding to the six emotion labels used (anger, fear, disgust, joy, sad, and surprise) have been removed from the tweet text, making emotion prediction implicit and the task challenging. We propose a model based on an ensemble of classifiers for prediction. Each classifier uses a sequence of Convolutional Neural Network (CNN) architecture blocks and uses ELMo (Embeddings from Language Model) as an input. Our system achieves a 66.2% F1 score on the test set. The best performing system in the shared task has reported a 71.4% F1 score.
Anthology ID:
W18-6236
Volume:
Proceedings of the 9th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis
Month:
October
Year:
2018
Address:
Brussels, Belgium
Editors:
Alexandra Balahur, Saif M. Mohammad, Veronique Hoste, Roman Klinger
Venue:
WASSA
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
248–253
Language:
URL:
https://aclanthology.org/W18-6236
DOI:
10.18653/v1/W18-6236
Bibkey:
Cite (ACL):
Wojciech Witon, Pierre Colombo, Ashutosh Modi, and Mubbasir Kapadia. 2018. Disney at IEST 2018: Predicting Emotions using an Ensemble. In Proceedings of the 9th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis, pages 248–253, Brussels, Belgium. Association for Computational Linguistics.
Cite (Informal):
Disney at IEST 2018: Predicting Emotions using an Ensemble (Witon et al., WASSA 2018)
Copy Citation:
PDF:
https://aclanthology.org/W18-6236.pdf