Malrey Lee

Prof. Malrey Lee


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 July 2015 in Symmetry
Verified
Journal Article
Open access
PDF file
ASAamir Shahzad
Aamir Shahzad
MLMalrey Lee
Malrey Lee
YLYoung-Keun Lee
Young-Keun Lee
Suntae KimSuntae Kim
Suntae Kim
Neal XiongNeal Xiong
Neal Xiong
YCYounghwa Cho
Younghwa Cho
Information technology (IT) security has become a major concern due to the growing demand for information and massive development of client/server applications for various types of applications running on modern IT infrastructure. How has security been taken into account and which paradigms are necessary to minimize security issues while increasing efficiency, reducing the influence on transmissions, ensuring protocol independency and achieving substantial performance? We have found cryptography to be an absolute security mechanism for client/server architectures, and in this study, a new security design was developed with the MODBUS protocol, which is considered to offer phenomenal performance for future development and enhancement of real IT infrastructure. This study is also considered to be a complete development because security is tested in almost all ways of MODBUS communication. The computed measurements are evaluated to validate the overall development, and the results indicate a substantial improvement in security that is differentiated from conventional methods.

3 August 2022 in Remote Sensing
Verified
Journal Article
Open access
PDF file
Sherozbek JumaboevSherozbek Jumaboev
Sherozbek Jumaboev
Dadajon Boykuzi Ugli JurakuzievDadajon Boykuzi Ugli Jurakuziev
Dadajon Boykuzi Ugli Jurakuziev
MLMalrey Lee
Malrey Lee
Solar energy is the fastest-growing clean and sustainable energy source, outperforming other forms of energy generation. Usually, solar panels are low maintenance and do not require permanent service. However, plenty of problems can result in a production loss of up to ~20% since a failed panel will impact the generation of a whole array. High-quality and timely maintenance of the power plant will reduce the cost of its repair and, most importantly, increase the life of the power plant and the total generation of electricity. Manual monitoring of panels is costly and time-consuming on large solar plantations; moreover, solar plantations located distantly are more complicated for humans to access. This paper presents deep learning-based photovoltaics fault detection techniques using thermal images obtained from an unmanned aerial vehicle (UAV) equipped with infrared sensors. We implemented the three most accurate segmentation models to detect defective panels on large solar plantations. The models employed in this work are DeepLabV3+, Feature Pyramid Network (FPN) and U-Net with different encoder architectures. The obtained results revealed intersection over union (IoU) of 79%, 85%, 86%, and dice coefficients of 87%, 92%, 94% for DeepLabV3+, FPN, and U-Net, respectively. The implemented models showed efficient performance and proved effective to resolve these challenges.

20 November 2015 in Multimedia Tools and Applications
Verified
Journal Article
Closed access
PDF file
ASAamir Shahzad
Aamir Shahzad
MLMalrey Lee
Malrey Lee
Changhoon LeeChanghoon Lee
Changhoon Lee
Neal XiongNeal Xiong
Neal Xiong
Suntae KimSuntae Kim
Suntae Kim
GJGisung Jeong
Gisung Jeong

26 October 2015 in International Journal of Distributed Sensor Networks
Verified
Journal Article
Open access
PDF file
ASAamir Shahzad
Aamir Shahzad
KUKalum Priyanath Udagepola
Kalum Priyanath Udagepola
YLYoung-Keun Lee
Young-Keun Lee
SPSoojin Park
Soojin Park
MLMalrey Lee
Malrey Lee
This study examined the security of SCADA system and its protocols, more specifically, SCADA/DNP3 protocol security. To achieve the study goals, a SCADA simulation environment is designed for water pumping process through connectivity of intelligent sensors, the payload is constructed, and security is deployed inside DNP3 protocol stack and then bytes are multicast to subcontrollers.

10 October 2014
Verified
Book Chapter
Closed access
PDF file
SYSoonduck Yoo
Soonduck Yoo
KCKwangdon Choi
Kwangdon Choi
MLMalrey Lee
Malrey Lee

19 March 2026 in Diagnostics
Verified
Journal Article
Open access
PDF file
MLMalrey Lee
Malrey Lee
Background: Strabismus diagnosis via the Alternate Cover Test (ACT) lacks quantitative standardization. This study proposes an AI-assisted framework using eye-tracking and machine learning for objective screening. Methods: Gaze coordinates were captured using a 60 Hz infrared eye tracker during ACT. Of the 291 initially screened individuals considered, 50 participants were ultimately included after quality filtering, yielding 335 valid samples. Seven algorithms were evaluated, with the dataset split into 294 training and 41 testing samples. Performance was measured by accuracy, sensitivity, specificity, PPV, and NPV. Results: Random Forest showed the best performance, achieving 97.56% accuracy (40/41) on the test set. It demonstrated a sensitivity of 1.00, specificity of 0.95, PPV of 0.95, and NPV of 1.00. The confusion matrix confirmed minimal false negatives, ensuring reliable clinical screening. Conclusions: The proposed system provides a robust, objective tool for strabismus diagnosis, standardizing ACT interpretation and reducing clinical bias.