Research status of foreign mathematical models

In foreign countries, the research status of mathematical models is mainly manifested in three aspects: one is to study geometric models and other physical, chemical and biological models from the perspective of accurate mathematical analysis; The second is to study the nonlinear model from the perspectives of statistics, machine learning and data mining. The third is to study computer science models from the perspective of computer science, such as algorithm analysis, programming language, network architecture, intelligent system and so on.