Daniel Kopev
2018
Tweety at SemEval-2018 Task 2: Predicting Emojis using Hierarchical Attention Neural Networks and Support Vector Machine
Daniel Kopev
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Atanas Atanasov
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Dimitrina Zlatkova
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Momchil Hardalov
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Ivan Koychev
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Ivelina Nikolova
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Galia Angelova
Proceedings of the 12th International Workshop on Semantic Evaluation
We present the system built for SemEval-2018 Task 2 on Emoji Prediction. Although Twitter messages are very short we managed to design a wide variety of features: textual, semantic, sentiment, emotion-, and color-related ones. We investigated different methods of text preprocessing including replacing text emojis with respective tokens and splitting hashtags to capture more meaning. To represent text we used word n-grams and word embeddings. We experimented with a wide range of classifiers and our best results were achieved using a SVM-based classifier and a Hierarchical Attention Neural Network.
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Co-authors
- Atanas Atanasov 1
- Dimitrina Zlatkova 1
- Momchil Hardalov 1
- Ivan Koychev 1
- Ivelina Nikolova 1
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