A single conversation can be interpreted in a variety of ways. A new AI system emulates the human ability to identify emotions and the tone of speech to establish whether conversations are sad, happy or neutral. This brings scientists closer to developing a potential solution. The AI system was developed by a team of researchers at the Computer Science and Artificial Intelligence Laboratory (CSAIL) and the Institute of Medical Engineering and Sciences (IMES) at Massachusetts Institute of Technology in Boston. In a news release, published Feb.1, the researchers explain the main functions of the system, which takes the form of an application that can be loaded into a smartwatch or wearable device.