Abstract
The article contains the results of research on the development of a model of a Big Data processing system, analysis and forecasting using Data Mining and machine learning methods in solving the problem of mortgage lending, specifically for analysing, forecasting and determining the solvency of individuals receiving a mortgage loan. The article considers the solution of one of the urgent problems of the banking system - mortgage lending. The main problem is to predict the solvency of mortgage borrowers for a long time using the data mining method. The main task is to implement the process of processing big data based on the developed system that determines the solvency of mortgage borrowers. Currently, the pace of long-term mortgage lending is growing annually, as a result, the timeliness of the research carried out in the article on the development of a model of the mortgage lending system, which clearly predicts the solvency of anyone who wants to get housing and makes appropriate decisions, is very relevant.