The first authoritative resource on the dominant paradigm for new computer interfaces: users input involving new media (speech, multi-touch, hand and body gestures, facial expressions, writing) embedded in multimodal-multisensor interfaces that often include biosignals. This second volume begins with multimodal signal processing, architectures, and machine learning. It includes deep learning approaches for processing multisensorial and multimodal user data and interaction, as well as context-sensitivity. It focuses attention on how interfaces are most likely to advance human performance during the next decade.