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In this work we note that using the Fuzzy Logic theory, in particular fuzzification of terms: Increased, Balanced and Decreased and defuzzification of fuzzy numbers based on the membership function we obtain of forecasting data for the audit, analyze and diagnostic of crude oil prices: Brent – Europe according to criteria the Over / Undervalue, Excess / Deficit and Equilibrium. Further, these studies also allow us to obtain the following classifications: – the time phase of the Increased that covers the periods from 1987 to 2005, in which the crude oil prices moved from 18.53 to 56.38 dollars per barrel; − the time phase of the Balanced that covers the periods from 1994 to 2016, in which the crude oil prices moved from 15.86 to 43.64 dollars per barrel; − the time phase of the Decreased that covers the periods from 2005 to 2023, in which the crude oil prices moved from 54.57 to 82.49 dollars per barrel.

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Using the Fuzzy Logic Models for Analysis of Time Phases of Crude Oil Prices: Brent-Europe

  • 会议论文

  • 发表日期：

    2025年

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  • Seyit Kerimkhulle,
  • Shakharzat Kuttykozhayeva,
  • Gulnara Turtkarayeva,
  • Toty Seitova,
  • Nazgul Ospanova,
  • Daniyar Toleubay

摘要

In this work we note that using the Fuzzy Logic theory, in particular fuzzification of terms: Increased, Balanced and Decreased and defuzzification of fuzzy numbers based on the membership function we obtain of forecasting data for the audit, analyze and diagnostic of crude oil prices: Brent – Europe according to criteria the Over / Undervalue, Excess / Deficit and Equilibrium. Further, these studies also allow us to obtain the following classifications: – the time phase of the Increased that covers the periods from 1987 to 2005, in which the crude oil prices moved from 18.53 to 56.38 dollars per barrel; − the time phase of the Balanced that covers the periods from 1994 to 2016, in which the crude oil prices moved from 15.86 to 43.64 dollars per barrel; − the time phase of the Decreased that covers the periods from 2005 to 2023, in which the crude oil prices moved from 54.57 to 82.49 dollars per barrel.