This document discusses hybrid deep learning models for multilingual sentiment analysis. It proposes a hybrid model that uses a convolutional neural network (CNN) for feature extraction and long short-term memory (LSTM) for recurrence. The model aims to improve accuracy over existing techniques by up to 11.6% on benchmarks. Previous research found that combining deep learning models with support vector machines (SVM) produced better sentiment analysis results than single models alone. However, hybrid models with SVM took significantly longer to compute. The document also reviews related work applying deep learning techniques like DNN, CNN and RNN to sentiment analysis tasks.