An Ensemble Model for Sentiment Analysis of Hindi-English Code-Mixed Data
This addresses sentiment detection for multilingual users in societies like India, but it is incremental as it builds on existing methods for a specific data type.
The paper tackled sentiment analysis of Hindi-English code-mixed social media data by proposing an ensemble model combining LSTM and Multinomial Naive Bayes, achieving state-of-the-art results compared to baselines and other deep learning methods.
In multilingual societies like India, code-mixed social media texts comprise the majority of the Internet. Detecting the sentiment of the code-mixed user opinions plays a crucial role in understanding social, economic and political trends. In this paper, we propose an ensemble of character-trigrams based LSTM model and word-ngrams based Multinomial Naive Bayes (MNB) model to identify the sentiments of Hindi-English (Hi-En) code-mixed data. The ensemble model combines the strengths of rich sequential patterns from the LSTM model and polarity of keywords from the probabilistic ngram model to identify sentiments in sparse and inconsistent code-mixed data. Experiments on reallife user code-mixed data reveals that our approach yields state-of-the-art results as compared to several baselines and other deep learning based proposed methods.