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Oksana Sira

National Technical University «Kharkiv Polytechnic Institute»

Kyrpychova str., 2

Kharkiv, 61002

Ukraine

SCHOLARLY PAPERS

10

DOWNLOADS

404

TOTAL CITATIONS

5

Scholarly Papers (10)

1.

Performing Arithmetic Operations Over the (L–R)-Type Fuzzy Numbers

Eastern-European Journal of Enterprise Technologies, 3(4 (105)), 6-11, 2020. doi: 10.15587/1729-4061.2020.203590
Number of pages: 6 Posted: 28 Dec 2020
Lev Raskin and Oksana Sira
National Technical University «Kharkiv Polytechnic Institute» and National Technical University «Kharkiv Polytechnic Institute»
Downloads 57 (989,921)
Citation 2

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(L–R)-type fuzzy numbers; compact carrier; rules for performing arithmetic operations

2.

Development of Modern Models and Methods of the Theory of Statistical Hypothesis Testing

Eastern-European Journal of Enterprise Technologies, 5(4 (107)), 11-18. doi: 10.15587/1729-4061.2020.214718
Number of pages: 8 Posted: 19 Jan 2021
Lev Raskin and Oksana Sira
National Technical University «Kharkiv Polytechnic Institute» and National Technical University «Kharkiv Polytechnic Institute»
Downloads 49 (1,074,648)

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statistical hypothesis testing; uniform method for solving problems; universal randomized criteria

3.

Development of Methods for Supply Management in Transportation Networks under Conditions of Uncertainty of Transportation Cost Values

EUREKA: Physics and Engineering, (2), 108-123, 2021. doi:10.21303/2461-4262.2021.001691
Number of pages: 16 Posted: 04 Jun 2021
National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute» and National Aerospace University "Kharkiv Aviation Institute"
Downloads 42 (1,157,785)

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transport linear programming problem, random transportation costs, exact solution algorithm, worst distribution density, minimax solution

4.

Universal Method for Solving Optimization Problems Under the Conditions of Uncertainty in the Initial Data

Eastern-European Journal of Enterprise Technologies, 1(4 (109), 46–53, 2021. doi:10.15587/1729-4061.2021.225515
Number of pages: 8 Posted: 27 Mar 2021
National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute», Kremenchuk Mykhailo Ostrohradskyi National University and National Technical University «Kharkiv Polytechnic Institute»
Downloads 41 (1,170,409)

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mathematical programming problem, uncertainty in the original data, universal solution method

5.

Devising Methods for Planning a Multifactorial Multilevel Experiment With High Dimensionality

Eastern-European Journal of Enterprise Technologies, 5(4 (113)), 64–72, 2021. doi: https://doi.org/10.15587/1729-4061.2021.242304
Number of pages: 9 Posted: 31 Jan 2022
Lev Raskin and Oksana Sira
National Technical University «Kharkiv Polytechnic Institute» and National Technical University «Kharkiv Polytechnic Institute»
Downloads 40 (1,183,237)

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planning of multifactorial multilevel experiment, problem with high dimensionality, decomposition plan, exact plan

6.

Comparator Identification in the Conditions of Bifuzzy Initial Data

EUREKA: Physics and Engineering, (1), 113-124, 2021, doi.10.21303/2461-4262.2021.001609
Number of pages: 12 Posted: 18 Mar 2021
Lev Raskin, Oksana Sira and Tetiana Katkova
National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute» and University of Customs and Finance
Downloads 40 (1,183,237)

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regression analysis, comparator identification problem, fuzzy and bifuzzy values of the initial data

7.

Execution of Arithmetic Operations Involving the Second-Order Fuzzy Numbers

Eastern-European Journal of Enterprise Technologies, 4(4 (106)), 14-20, 2020, doi: 10.15587/1729-4061.2020.210103
Number of pages: 7 Posted: 07 Jan 2021
Lev Raskin and Oksana Sira
National Technical University «Kharkiv Polytechnic Institute» and National Technical University «Kharkiv Polytechnic Institute»
Downloads 39 (1,196,171)
Citation 2

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Fuzzy Numbers of (L-R)-Type; Second-Order Fuzziness; Algebra of Operations; Arithmetic Operations; Execution Rules

8.

Devising a Method for Finding a Family of Membership Functions to Bifuzzy Quantities

Eastern-European Journal of Enterprise Technologies, 2(4 (110), 6–14, 2021. doi:10.15587/1729-4061.2021.229657
Number of pages: 9 Posted: 13 May 2021
National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute», Kremenchuk Mykhailo Ostrohradskyi National University and National Technical University "Kharkiv Politechinal Institute"
Downloads 35 (1,249,711)

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fuzzy mathematics, membership function of type 2 fuzzy numbers, construction rules

9.

Analysis of Semi-Markov Systems With Fuzzy Initial Data

EUREKA: Physics and Engineering, (2), 128–142, 2022. doi: https://doi.org/10.21303/2461-4262.2022.002346
Number of pages: 15 Posted: 24 Apr 2022
National Technical University «Kharkiv Polytechnic Institute», National Technical University «Kharkiv Polytechnic Institute», Kremenchuk Mykhailo Ostrohradskyi National University and National Technical University "Kharkiv Politechinal Institute"
Downloads 32 (1,290,922)

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semi-Markov models of systems, bi-fuzzy input data, calculation of state probability distributions

10.

Development of Methods for Extension of the Conceptual and Analytical Framework of the Fuzzy Set Theory

Eastern-European Journal of Enterprise Technologies, 6(4 (108)), 14-21, 2020. doi: 10.15587/1729-4061.2020.217630
Number of pages: 8 Posted: 02 Mar 2021
Lev Raskin and Oksana Sira
National Technical University «Kharkiv Polytechnic Institute» and National Technical University «Kharkiv Polytechnic Institute»
Downloads 29 (1,332,057)
Citation 1

Abstract:

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distribution density of fuzzy quantities; moments; characteristic functions; limit theorem; correlation coefficient