Facial expression recognition techniques: a comprehensive survey. - Saranya Rajan; Poongodi Chenniappan; Somasundaram Devaraj; Nirmala Madian (IET Image Process., 2019)

Novel deep learning model for facial expression recognition based on maximum boosted CNN and LSTM. - Saranya Rajan; Poongodi Chenniappan; Somasundaram Devaraj; Nirmala Madian (IET Image Process., 2020)