The social policy of a country is a set of specific activities aimed at regulating the social relations between different in their social status subjects. This approach to clarifying social policy is also called functional and essentially addresses social policy as an activity to regulate the relationship of equality or inequality in society. It provides an opportunity to look for inequalities in the economic positions of individuals in relation to ownership, labor and working conditions, distribution of income and consumption, social security and health, to look for the sources of these inequalities and their social justification or undue application.The modern state takes on social functions that seek to regulate imbalances, to protect weak social positions and prevent the disintegration of the social system. It regulates the processes in society by harmonizing interests and opposing marginalization. Every modern country develops social activities that reflect the specifics of a particular society, correspond to its economic, political and cultural status. They are the result of political decisions aimed at directing and regulating the process of adaptation of the national society to the transformations of the market environment. Social policy is at the heart of the development and governance of each country. Despite the fact that too many factors and problems affect it, it largely determines the physical and mental state of the population as well as the relationships and interrelationships between people. On the other hand, social policy allows for a more global study and solving of vital social problems of civil society. On the basis of the programs and actions of political parties and state bodies, the guidelines for the development of society are outlined. Social policy should be seen as an activity to regulate the relationship of equality or inequality between different individuals and social groups in society. Its importance is determined by the possibility of establishing on the basis of the complex approach: the economic positions of the different social groups and individuals, by determining the differences between them in terms of income, consumption, working conditions, health, etc .; to explain the causes of inequality; to look for concrete and specific measures to overcome the emerging social disparities.
Adaptive PID Control and Its Application Based on a Double-Layer BP Neural Network