Simulation of Off Wheel Problem of Triangle Tracked Vehicle Based on Recyrdny -- Brief Design Requirements of Screen Printing Stencil -- Review of Improved Collaborative Filtering Recommendation Algorithms -- A Preliminary Study on the Application of Computer Technology in Physical Education -- Design of Archives Management System for Teaching -- An Algorithm for Distinguishing Between Speech and Music -- Research on Multiple Overlapping Speakers Number Recognition Based on X-vector -- Feasibility Analysis of Venture Capital Committee in the Innovative Design of Class Management in Colleges and Universities -- A Survey and Study on Satisfaction and Influencing Factors using Ant Credit Pay via Intelligent Processing -- A Review on Main Optimization Method of ALBERT in Natural Language Processing -- Study on the Influencing Factors of Customer Loyalty in Large Smart Home Furnishing Stores -- Research on Linear Detection Technology for Massive MIMO in Wireless Communications -- Research on Intelligent Reconfiguration and Recognition Technology of Mobile Environment for Substation Operation.

This book gathers selected papers presented at the Fourth International Conference on Mechatronics and Intelligent Robotics (ICMIR 2020), held in Kunming, China, on May 22-24, 2020. The proceedings cover new findings in the following areas of research: mechatronics, intelligent mechatronics, robotics and biomimetics; novel and unconventional mechatronic systems; modeling and control of mechatronic systems; elements, structures and mechanisms of micro- and nano-systems; sensors, wireless sensor networks and multi-sensor data fusion; biomedical and rehabilitation engineering, prosthetics and artificial organs; artificial intelligence (AI), neural networks and fuzzy logic in mechatronics and robotics; industrial automation, process control and networked control systems; telerobotics and human-computer interaction; human-robot interaction; robotics and artificial intelligence; bio-inspired robotics; control algorithms and control systems; design theories and principles; evolutional robotics; field robotics; force sensors, accelerometers and other measuring devices; healthcare robotics; kinematics and dynamics analysis; manufacturing robotics; mathematical and computational methodologies in robotics; medical robotics; parallel robots and manipulators; robotic cognition and emotion; robotic perception and decisions; sensor integration, fusion and perception; and social robotics.