Before revision:  We also discuss the state-of-the-art machine learning models for different modalities of input such as text, audio, visual and multimodal . Personality detection is a very broad topic and this literature survey focuses mainly on machine learning techniques rather than the psychological aspect of personality detection.
After revision:  We also discuss the state-of-the-art machine learning models for different modalities of input such as text, audio, visual and multimodal . Personality detection is a very broad and diverse topic: this survey only focuses on computational approaches and leaves out psychological studies on personality detection.