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Abstract

The article reveals the meaning and essence of the modeling method in the study of complex technological processes based on the problematic aspects of building multifactorial relationships and the principles for their elimination. In the case of non-linearity of multifactorial connections of a complex system, the expediency of approximating such functions by polynomials is substantiated. The authors' ideas about the increasing importance of interpolation methods in practice against the background of the possibility of simplification based on the use of modern mathematical hardware and software for integration into the process of modeling and optimizing technological processes due to the complexity of the approximation issue. In this case, the process of determining the parameters of the polynomial model is based on the principle of similarity to the methodology for determining the interpolation coefficients. If the requirements for the adequacy of the linear control model are not met, a technology is proposed for using the laws of linear modeling using polynomial nonlinear models. An algorithm for polynomial approximation has been developed using the example of an oil and gas separator for control models of a constructive and non-parametric technological system. When the reaction of the technological system depends on the linear expression of input factors, although this model is initially adequate, it is practically analyzed that the results of factor control of changes in the main indicator lead to significant errors.

First Page

59

Last Page

67

References

  1. Gomes, C.P., Williams, R. (2005). Approximation Algorithms. In: Burke, E.K., Kendall, G. (eds) Search Methodologies. Springer, Boston, MA. https://doi.org/10.1007/0-387-28356-0_18.
  2. Goldwasser, S., Kilian, J. (1986). Almost all primes can be quickly certified. Annual IEEE Symposium on Foundations of Computer Science, pp. 316-329.
  3. Arora, S. (1998). Polynomial time approximation schemes for Euclidean traveling salesman and other geometric problems. J. ACM, 45, 753-782.
  4. Ergashev, A.H. (2002). Modelirovanie realnykh i abstraknykh protsessov [Modeling of real and abstract processes]. Karshi: Nasaf. 109 p. (in Russian).
  5. ZHuraev, F. (2021). Perspektivnye problemy razvitiya proizvodstvo sel'skokhozyajstvennoj produktsii i ikh ehkonometricheskoe modelirovanie [Perspective problems of development of agricultural production and their econometric modeling]. EHkonomika i obrazovanie, (4), 377-385.
  6. ZHuraev F.D. (2021). Econometric modeling of the development and management of agricultural production based on cluster analysis (on the example of the Kashkadarya region). EHkonomika i predprinimatel'stvo, 15, 8 (133), 584–590 // DOI: 10.34925/EIP.2021.133.8.112.
  7. Zhўraev, F.D. (2021). Qishloq kho’zhalik mahsulotlari ishlab chiqarishni qisqa muddatli prognozlashtirish. Innovatsion tekhnologiyalar, 2 (42). 92-95.
  8. ZHuraev, F. (2021). Qishloq kho’zhalik mahsulotlari ishlab chiqarishni rivozhlantirishning istiqboldagi muammolari va ularni ehkonometrik modellashtirish. EHkonomika i obrazovanie, (4), 377-385.
  9. Mukhitdinov, K.S., Juraev, F.D. Methods of Macroeconomic Modeling. International Journal of Trend in Scientific Research and Development (IJTSRD). https://scholar.google.com/citations?view_op=view_citation&hl=ru&user=nzy59R0AAAAJ&citation_for_view=nzy59R0AAAAJ:Tyk-4Ss8FVUC
  10. Solovay, R., Strassen, V. (1977). A fast Monte Carlo test for primality. SIAMJ. Comput. 6, 84-86.
  11. Rakhimov, A., Ochilov, M. (2021). Qashqadaryo viloyati aholisiga transport khizmat ko’rsatish sohasining rivozhlanishini trend modellar asosida baholash. EHkonomika i obrazovanie, (4), 396-402.
  12. Ochilov, M.A., Juraev, F.D., Maxmatqulov, G.X., Rahimov, A.M. (2020). Analysis of important factors in checking the optimality of an indeterminate adjuster in a closed system. Journal of Critical Review, 7(15), 1679-1684.
  13. Ochilov, M.A. (2018). Vnedrenie avtomatizirovannykh sistem operativnogo upravleniya proizvodstvom na neftepererabatyvayushhikh predpriyatiyakh [Implementation of automated systems for operational management of production at oil refineries]. In Sfera znanij: voprosy produktivnogo vzaimodejstviya teorii i praktiki, 219-223.

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