A user's facial expressions can reveal his or her level of emotion. These be obtained from the system's camera's live feed. In area computer vision (CV) and machine learning (ML), a lot research is being done to train machines recognize different human emotions moods. Machine offers variety methods for detecting emotions. review existing music systems revealed that many applications rely on pas...

This chapter discusses content-based recommendation systems, i.e., systems that recommend an item to a user based upon a description of the item and a profile of the user’s interests. Content-based recommendation systems may be used in a variety of domains ranging from recommending web pages, news articles, restaurants, television programs, and items for sale. Although the details of various sy...