Author Profiling Approach: Predicting Personality Traits on Twitter Data using Combined BERT and SimCSE Embeddings

Author profiling involves predicting various characteristics of an author from their writing style, including age, gender, native language, and personality traits. The PAN2015 shared task concentrated on author profiling within social media, challenging participants to predict the personality traits of Twitter users based on their tweets. In recent years, deep learning methods have risen to prominence in author profiling. Researchers frequently employ several notable models such as Word2Vec, doc2vec, GloVe, and FastText for generating word embeddings. These models have consistently shown effectiveness across various natural language processing tasks. For the PAN2015 task, participants employed a range of deep learning models to generate word embeddings, aiming to predict the age, gender, and personality traits of Twitter users. In this study, our focus was on enhancing the accuracy of personality traits classification using the PAN2015 dataset, a renowned benchmark corpus for author profiling. We employed pre-trained deep learning models, namely BERT and SimCSE, to generate word embeddings and sentence embeddings. For classification, we utilized Long Short-Term Memory (LSTM) and Convolution Neural Network (CNN) classifiers. Our findings revealed that the LSTM model, integrated with combined BERT and SimCSE embeddings, achieved an accuracy of 87.53% for personality traits classification, while the CNN model, similarly equipped, attained 80.48%. Additionally, utilizing BERT alone with LSTM yielded an accuracy of 78.45%, and with CNN, 75.32%. Our findings highlight the versatility of these models in addressing a range of natural language processing tasks, indicating their potential utility in diverse author profiling applications.