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The paper considers a problem of gemstones valuation, based on real data. The main goal includes constructing a model that determines the evaluated price of a given stone on the basis of its description, expressed as a set of input variables values. A classic approach, utilising a multiple linear regression tool, is compared with nonlinear multilayer perceptrons. As the dataset contains a number of qualitative variables (e.g. gemstone colour purity, the clarity of the structure and a symbol of the certifying autho...

A new quality of economic growth is being formed and related to the development of digital computer technologies in the modern world. The government of the Russian Federation has taken a course to transfer the Russian economy to a digital basis. It is reflected in the program approved in 2017 "Digital Economy". Among the main end-to-end digital technologies within this program are neurotechnologies, which, together with other advanced technologies, are created to reduce the gap with the leading countries in the ne...

The paper presents a new, developed by the author, concept of an artificial neural map, named COMSOM and inspired by classic SOM neural networks. The initial part of the article shows a general idea of COMSOM model and its structure, which includes two layers of artificial neurons: input layer (with typical task of distributing input values to data processing neurons) and basic layer containing usually a great number of processing elements, located inside a rectangular part of an XY plane, and able to move freely ...