Jura Kuvandikov Tursunbayevich; Ulugbek Mingboev Khujaevich; Maruf Tojiyev Ruzikulovich; Parmonov Abdutolib Abduvahobovich; Hafizov Erkin Alimboy ugli

Adaptive Multi-Stage Fuzzy Logic Model of Student Knowledge Assessment

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Author(s)

Jura Kuvandikov Tursunbayevich ¹ Ulugbek Mingboev Khujaevich ¹ Maruf Tojiyev Ruzikulovich ^2,* Parmonov Abdutolib Abduvahobovich ³ Hafizov Erkin Alimboy ugli ⁴

1. Jura Kuvandikov Tursunbayevich Department of Computer Science and Programming, Jizzakh Branch of the National University of Uzbekistan named after Mirzo Ulugbek, Jizzakh 130100, Uzbekistan

2. Department of Management Theory and Information Security, Samarkand State University named after Sharof Rashidov, Samarkand 140100, Uzbekistan

3. Department of Applied Mathematics, Jizzakh Branch of the National University of Uzbekistan named after Mirzo Ulugbek, Jizzakh 130100, Uzbekistan

4. Department of Information Systems and Technologies, Jizzakh Branch of the National University of Uzbekistan named after Mirzo Ulugbek, Jizzakh 130100, Uzbekistan

* Corresponding author.

DOI: https://doi.org/10.5815/ijwmt.2026.03.01

Received: 26 Feb. 2026 / Revised: 4 Mar. 2026 / Accepted: 14 Mar. 2026 / Published: 8 Jun. 2026

Index Terms

Fuzzy Sets, Educational System, Students Knowledge, Assessment System, Objectivity, Differentiation Index, Response Value, Fuzzification, Logical Control, Educational Effectiveness, Innovative Methods, Dynamic Assessment, Individualized Approach, Students

Abstract

Accurate and objective assessment of students’ knowledge remains a challenging problem due to the inherent uncertainty and subjectivity of traditional evaluation systems. Conventional grading approaches often fail to account for task complexity, discrimination power, and variability in student responses, which leads to inconsistent and biased results. This study proposes a multi-stage fuzzy logic–based decision-making model for knowledge assessment. The model integrates several key evaluation indicators, including task difficulty, discrimination index, response value, and response weight, within a unified fuzzy inference framework. A structured multi-factor evaluation mechanism is developed, where fuzzy membership functions and rule-based inference are used to transform qualitative judgments into quantitative assessment measures. Furthermore, a defuzzification process based on the Center of Gravity (COG) method is applied to obtain final scores, and a correction mechanism is introduced to refine evaluation outcomes. A comparative analysis was conducted using assessment data from 100 students across 5 tasks evaluated on a [0–10] scale. The results suggest that the proposed approach provides a more differentiated and consistent interpretation of student performance than the traditional assessment method. The proposed model provides a reliable and interpretable framework for evaluating students’ knowledge and supports the development of adaptive and intelligent educational assessment systems.

Cite This Paper

Jura Kuvandikov Tursunbayevich, Ulugbek Mingboev Khujaevich, Maruf Tojiyev Ruzikulovich, Parmonov Abdutolib Abduvahobovich, Hafizov Erkin Alimboy ugli, "Adaptive Multi-Stage Fuzzy Logic Model of Student Knowledge Assessment", International Journal of Wireless and Microwave Technologies(IJWMT), Vol.16, No.3, pp. 1-13, 2026. DOI:10.5815/ijwmt.2026.03.01

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International Journal of Wireless and Microwave Technologies (IJWMT)