Machine Learning Algorithm to Detect Impersonation in an Essay-Based E-Exam

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Joseph Kombe Samuel
Joseph Kombe Samuel
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Dr. Peter Ochieng
Dr. Peter Ochieng
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Dr. Solomon Mwanjele
Dr. Solomon Mwanjele
α Taita Taveta University Taita Taveta University

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Machine Learning Algorithm to Detect Impersonation in an Essay-Based E-Exam

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Abstract

Essay-based E-exams require answers to be written out at some length in an E-learning platform. The questions require a response with multiple paragraphs and should be logical and wellstructured. These type of examinations are increasingly becoming popular in academic institutions of higher learning based on the experience of COVID-19 pandemic. Since the exam is mainly done virtually with reduced supervision, the risk of impersonation and stolen content from other sources increases. Due to this, there is need to design cost effective and accurate techniques that are able to detect cheating in an essay based E-exam. In this work we develop, train and evaluate real-time LSTM, RNN and GRU algorithms, and then benchmark the performance of the algorithms against other state-of-the-art models in the same study area of detecting cheating in exam in an E-learning environment. Based on a set threshold, the models alert on possible impersonation or stolen content if the discrepancy exceeds the threshold. The evaluation and benchmarking of the algorithms revealed that our GRU model has the highest accuracy of 98.6% compared to other models in similar studies.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Joseph Kombe Samuel. 2026. \u201cMachine Learning Algorithm to Detect Impersonation in an Essay-Based E-Exam\u201d. Global Journal of Computer Science and Technology - D: Neural & AI GJCST-D Volume 23 (GJCST Volume 23 Issue D1): .

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Comprehensive guide on machine learning algorithms for essay plagiarism detection and academic integrity.
Issue Cover
GJCST Volume 23 Issue D1
Pg. 15- 26
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Crossref Journal DOI 10.17406/gjcst

Print ISSN 0975-4350

e-ISSN 0975-4172

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GJCST-D Classification: FOR Code: 170203
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v1.2

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April 10, 2023

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en
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Essay-based E-exams require answers to be written out at some length in an E-learning platform. The questions require a response with multiple paragraphs and should be logical and wellstructured. These type of examinations are increasingly becoming popular in academic institutions of higher learning based on the experience of COVID-19 pandemic. Since the exam is mainly done virtually with reduced supervision, the risk of impersonation and stolen content from other sources increases. Due to this, there is need to design cost effective and accurate techniques that are able to detect cheating in an essay based E-exam. In this work we develop, train and evaluate real-time LSTM, RNN and GRU algorithms, and then benchmark the performance of the algorithms against other state-of-the-art models in the same study area of detecting cheating in exam in an E-learning environment. Based on a set threshold, the models alert on possible impersonation or stolen content if the discrepancy exceeds the threshold. The evaluation and benchmarking of the algorithms revealed that our GRU model has the highest accuracy of 98.6% compared to other models in similar studies.

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Machine Learning Algorithm to Detect Impersonation in an Essay-Based E-Exam

Joseph Kombe Samuel
Joseph Kombe Samuel Taita Taveta University
Dr. Peter Ochieng
Dr. Peter Ochieng
Dr. Solomon Mwanjele
Dr. Solomon Mwanjele

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