Model recognition: In model recognition, the refinement and automatic interpretation of models are examined by mathematical techniques in computers, focusing on the processing of non-intuitive data such as signals, images, language, text, fingerprints such as voice recognition, facial recognition, etc. Lies. By extracting related functions. Text recognition, voice recognition, fingerprint recognition and image recognition are applications for pattern recognition. Human-computer interaction: The human-computer interaction is the interaction between a research system and a user. Systems can be multiple machines, computer systems and software