THU-HCSI at SemEval-2019 Task 3: Hierarchical Ensemble Classification of Contextual Emotion in Conversation
Xihao Liang, Ye Ma, Mingxing Xu · 2019
In this paper, we describe our hierarchical ensemble system designed for the SemEval-2019 task3, EmoContext.In our system, three sets of classifiers are trained for different subtargets and the predicted labels of these base classifiers are combined through three steps of voting to make the final prediction.Effective details for developing base classifiers are highlighted.Experiment results show that the ensemble approach manages to obtain better predictive performance in comparison with the base classifiers and our system has achieved the performance within the top 10 ranks in the final evaluation of EmoContext.