Vol 9, No 12 (2021)

This article describes and compares the characteristics of such most common speech recognition systems as CMU Sphinx, Google Speech, HTK, Julius, iAtros, RWTH ASR. The comparison is based on the following important characteristics: supported recognition languages, supported operating systems, availability of documentation, open source code, presence or absence of offline mode, WER, WRR, SF indicators. It also describes the process and results of testing the best systems for various indicators.

Two theorems are proved in this paper, in which lower and upper bounds are established for complete elliptic integrals of the first and second kind, expressed in terms of elementary functions. These theorems are applied to a model geometric example. In addition, the article presents graphs of dependencies on the modulus of these integrals of both the estimates obtained and their relative errors. The applicability of the approximations found for technical applications is also discussed.

The article describes the software developed by the authors. The software is designed to organize the process of electronic data interchange between remote computers on which different computer-aided design and engineering analysis systems are installed.

The problem of constructing a mathematical model for calculating the optimal structure of output and the structure of prices supporting the maximum rate of growth of production is considered in the article. The optimal trajectory of economic growth in production is defined as a long-term state of equilibrium in the market.

The article describes a software system developed by the authors that allows automated testing of web applications based on the SELENIUM framework. The architecture of the software system is considered in detail, the process of building test scenarios and generating reports on the conducted testing is described, an example of testing a specific web application is given.