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Department of Computer and Information Science
Faculty of Applied Science
King Mongkut's University of Technology North Bangkok

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My Research (Main Research)

2011

[1] (conference) Mutation Period Calculation for Particle Swarm Optimization
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul,B. Kruatrachue, “Mutation Period Calculation for Particle Swarm Optimization,” in Proceedings of the International Symposium on Technology for Sustainability (ISTS), 2011.
[2] (conference) Selective Crossover Based on Fitness in Multi-Swarm Optimization
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul,,B. Kruatrachue,“Selective Crossover Based on Fitness in Multi-Swarm Optimization,” in Proceedings of the International Conference on Emerging Trends in Computer and Image Processing, 2011.

2014

[3] (conference) A Modified Particle Swarm Optimization with Dynamic Particles Re-initialization Period
[DOWNLOAD]
Cite this paper: Ratanavilisagul, C., Kruatrachue, B. (2014). A Modified Particle Swarm Optimization with Dynamic Particles Re-initialization Period. In: Boonkrong, S., Unger, H., Meesad, P. (eds) Recent Advances in Information and Communication Technology. Advances in Intelligent Systems and Computing, vol 265. Springer, Cham. https://doi.org/10.1007/978-3-319-06538-0_4
[4] (conference) A modified particle swarm optimization with dynamic mutation period
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul and B. Kruatrachue, "A modified particle swarm optimization with dynamic mutation period," 2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Nakhon Ratchasima, Thailand, 2014, pp. 1-6, doi: 10.1109/ECTICon.2014.6839762.
[5] (Journal Q3) A Modified Particle Swarm Optimization with Mutation and Reposition
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul and B. Kruatrachue, “A Modified Particle Swarm Optimization with Mutation and Reposition,” International Journal of Innovative Computing, Information and Control, vol. 10, no. 6, pp. 2127–2142, Dec. 2014.

2016

[6] (conference) Dynamic Population Size and Mutation Round Strategy Assisted Modified Particle Swarm Optimization with Mutation and Reposition
[DOWNLOAD]
Cite this paper: Chiabwoot Ratanavilisagul,Dynamic Population Size and Mutation Round Strategy Assisted Modified Particle Swarm Optimization with Mutation and Reposition,Procedia Computer Science,Volume 86,2016,Pages 449-452,ISSN 1877-0509,https://doi.org/10.1016/j.procs.2016.05.078.
[7] (conference) Improvement Particles Reposition of Particle Swarm Optimization with Adjusting Particles Distribution Boundary Automatically
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, P. Wongsaeasd, and W. Lerttheerachanchai, “Improvement Particles Reposition of Particle Swarm Optimization with Adjusting Particles Distribution Boundary Automatically,” in Proceedings of the CreTech 2016, Bangkok, Thailand, Aug. 24–26, 2016.
[8] (conference) Particle Swarm Optimization with adjusting Scope of Particles Distribution Automatically
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, P. Wongsawasdi, W. Lerttheerachanchai, P. Mutchika, and N. Jeeranantasin, “Particle Swarm Optimization with Adjusting Scope of Particles Distribution Automatically,” in Proceedings of the International Journal of Computer Science and Electronics Engineering (IJCSEE), Pattaya, Thailand, Dec. 14–15, 2016.

2017

[9] (conference) Modified Ant Colony Optimization with pheromone mutation for travelling salesman problem
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, "Modified Ant Colony Optimization with pheromone mutation for travelling salesman problem," 2017 14th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Phuket, Thailand, 2017, pp. 411-414, doi: 10.1109/ECTICon.2017.8096261.

2018

[10] (conference) Modified Ant Colony Optimization with Updating Pheromone by Leader and Re-Initialization Pheromone for Travelling Salesman Problem
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul and B. Pasaya, "Modified Ant Colony Optimization with Updating Pheromone by Leader and Re-Initialization Pheromone for Travelling Salesman Problem," 2018 International Conference on Engineering, Applied Sciences, and Technology (ICEAST), Phuket, Thailand, 2018, pp. 1-4, doi: 10.1109/ICEAST.2018.8434500.

2019

[11] (conference) Modified Ant Colony Optimization with mutation and Reset Pheromone for Travelling Salesman Problem
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, “Modified Ant Colony Optimization with mutation and Reset Pheromone for Travelling Salesman Problem,” in Proc. 7th CreTech Int. Conf. 2019, Chumphon, Thailand, 2019, pp. 1–7.

2020

[12] (conference) Modification fitness function of particle swarm optimization to improve the cluster centroid
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, “Modification fitness function of particle swarm optimization to improve the cluster centroid,” in Proc. IOP Conf. Ser.: Mater. Sci. Eng., vol. 965, 2020, Art. no. 012010, pp. 1–10, doi: 10.1088/1757-899X/965/1/012010.

2021

[13] (conference) A novel modified particle swarm optimization algorithm with mutation for data clustering problem
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, "A novel modified particle swarm optimization algorithm with mutation for data clustering problem," 2020 5th International Conference on Computational Intelligence and Applications (ICCIA), Beijing, China, 2020, pp. 55-59, doi: 10.1109/ICCIA49625.2020.00018.
[14] (conference) A novel modified Ant Colony Optimization Algorithm by resetting and updating pheromone for Vehicle Routing Problem with Time Windows
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, “A novel modified Ant Colony Optimization Algorithm by resetting and updating pheromone for Vehicle Routing Problem with Time Windows,” in Proc. 7th Int. Conf. Comput. Commun. (ICCC), Chengdu, China, 2021, pp. 1194–1198, doi: 10.1109/ICCC54389.2021.9674681.
[15] (Journal Q4) Modified Ant Colony Optimization for Vehicle Routing Problem with Time Windows using Limited Search Space and Novel Updating Pheromone and Re-initialization Pheromone Techniques
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, “Modified Ant Colony Optimization for Vehicle Routing Problem with Time Windows using Limited Search Space and Novel Updating Pheromone and Re-initialization Pheromone Techniques,” ICIC Express Lett. Part B: Appl., vol. 13, no. 6, pp. 571–579, Jun. 2022.

2022

[16] (Journal Q4) Modified Ant Colony Optimization with Route Elimination and Pheromone Reset for Multiple Pickup and Multiple Delivery Vehicle Routing Problem with Time Window
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, “Modified Ant Colony Optimization with Route Elimination and Pheromone Reset for Multiple Pickup and Multiple Delivery Vehicle Routing Problem with Time Window,” Journal of Advanced Computational Intelligence and Intelligent Informatics, vol. 26, no. 6, pp. 959–964, 2022.
[17] (Journal Q3) Modified Ant Colony Optimization with Selecting and Elimination Customer and Re-initialization for VRPTW
[DOWNLOAD]
Cite this paper: S. Kosolsombat and C. Ratanavilisagul, “Modified Ant Colony Optimization with Selecting and Elimination Customer and Re-initialization for VRPTW,” Bulletin of Electrical Engineering and Informatics, vol. 11, no. 6, pp. 3471–3482, Dec. 2022.

2023

[18] (conference) A Novel Modified Ant Colony Optimization for Solving Multi-Skill Resource-Constrained Project Scheduling Problem
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, "A Novel Modified Ant Colony Optimization for Solving Multi-Skill Resource-Constrained Project Scheduling Problem," 2023 8th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2023, pp. 64-68, doi: 10.1109/ICCIA59741.2023.00020.
[20] (conference) Applied Deep Reinforcement Learning for Solving the Vehicle Routing Problem with Time Windows
[DOWNLOAD]
Cite this paper: S. Kosolsombat and C. Ratanavilisagul, "Applied Deep Reinforcement Learning for Solving the Vehicle Routing Problem with Time Windows," 2023 8th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2023, pp. 21-25, doi: 10.1109/ICCIA59741.2023.00012.

2024

[21] (conference) Modified Feature Selection with BPSO to Apply PSO for Solving Handwritten Digits
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, "Modified Feature Selection with BPSO to Apply PSO for Solving Handwritten Digits," 2024 12th International Electrical Engineering Congress (iEECON), Pattaya, Thailand, 2024, pp. 1-6, doi: 10.1109/iEECON60677.2024.10537900.
[22] (conference) Modified Particle Swarm Optimization for Solving Handwritten Digits
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul, "Modified Particle Swarm Optimization for Solving Handwritten Digits," 2024 4th International Conference on Computer Communication and Information Systems (CCCIS), Phuket, Thailand, 2024, pp. 52-58, doi: 10.1109/CCCIS63483.2024.00017.
[23] (Journal Q4) Modified Particle Swarm Optimization with Resetting and Jumping Techniques for Solving Handwritten Digits
[DOWNLOAD]
Cite this paper:  C. Ratanavilisagul, “Modified Particle Swarm Optimization with Resetting and Jumping Techniques for Solving Handwritten Digits,” ICIC Express Lett. Part B: Appl., vol. 15, no. 12, pp. 1227-1235, 2024.

2025

[24] (Journal Q4) The Number of Patients Prediction Using Data Migration, Machine Learning and Modified Particle Swarm Optimization
[DOWNLOAD]
Cite this paper: S. Kosolsombat, C. Ratanavilisagul, and T. Siraaksorn, “The Number of Patients Prediction Using Data Migration, Machine Learning and Modified Particle Swarm Optimization,” ICIC Express Letters, Part B: Applications, vol. 16, no. 7, pp. 709–716, Jul. 2025.
[25] (conference) Modified Particle Swarm Optimization and Machine Learning for Solving Handwritten English Characters
[DOWNLOAD]
Cite this paper: Chiabwoot Ratanavilisagul. 2025. Modified Particle Swarm Optimization and Machine Learning for Solving Handwritten English Characters. In Proceedings of the 2024 10th International Conference on Robotics and Artificial Intelligence (ICRAI '24). Association for Computing Machinery, New York, NY, USA, 45–50. https://doi.org/10.1145/3728985.3728997

2026

[26] (Journal Q4) Modified Particle Swarm Optimization and Support Vector Machine for Solving Water Level Measurement
[DOWNLOAD]
Cite this paper: C. Ratanavilisagul and S. Kosolsombat, “Modified Particle Swarm Optimization and Support Vector Machine for Solving Water Level Measurement,” ICIC Express Letters, Part B: Applications, vol. 17, no. 1, pp. 31–39, Jan. 2026.
[27] (conference) Application of Convolutional Neural Networks for Enhancing Gemstone Classification Performance
[DOWNLOAD]
Cite this paper: L. Poempool, P. Pumpakar, C. Ratanavilisagul**** and S. Ratanasanya, "Application of Convolutional Neural Networks for Enhancing Gemstone Classification Performance," 2026 Joint International Conference on Digital Arts, Media and Technology with ECTI Northern Section Conference on Electrical, Electronics, Computer and Telecommunication Engineering (ECTI DAMT & NCON), Chiang Mai, Thailand, 2026, pp. 122-127, doi: 10.1109/ECTIDAMTNCON67592.2026.11460077.
[28] (Unpublished) (conference) Improved Segmentation Technique for Handwritten Character Recognition

Cite this paper:  C. Ratanavilisagul, L. Poempool, and S. Kosolsombat, “Improved Segmentation Technique for Handwritten Character Recognition,” in Proceedings of the 14th 2026 International Electrical Engineering Congress (iEECON), 2026.
[29] (Accepted) (conference) Optimizing SVM Parameters for Handwritten Digit Recognition Using a Modified PSO Fitness Function

Cite this paper:  Chiabwoot Ratanavilisagul, Lukkana Poempool, Apisit Rattanatranurak, Somkiat Kosolsombat, Optimizing SVM Parameters for Handwritten Digit Recognition Using a Modified PSO Fitness Function, 2026 11th International Conference on Computational Intelligence and Applications (ICCIA 2026)

[30] (Accepted) (Journal Q2) Optimization of SVM Parameters for Thai Sports Science Dataset Classification Using a Modified PSO with Swap and Reset Mechanisms

Cite this paper: S. Kosolsombat, C. Ratanavilisagul****, and A. Maneengam, “Optimization of SVM Parameters for Thai Sports Science Dataset Classification Using a Modified PSO with Swap and Reset Mechanisms,” Engineering, Technology & Applied Science Research






My Research Team


2015


[1]เฉียบวุฒิ รัตนวิไลสกุล และ อภิสิทธิ์ รัตนาตรานุรักษ์, “ระบบโฆษณาอัตโนมัติบนทวิตเตอร์โดยใช้จาวาสคริปต์,” วารสารวิชาการเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยราชภัฏสวนสุนันทา, ปีที่ 3, ฉบับที่ 3, หน้า 68–76, ม.ค.–ธ.ค. 2558.

2018


[2] (conference) T. Ngamsantivong and C. Ratanavilisagul, “The Conversion of Dependency and Association in UML Design Class,” in Proceedings of the 4th International Conference on Computer, Communication and Control Technology, Journal of Telecommunication, Electronic and Computer Engineering.

2022


[3] (conference) T. Kuarkamphun and C. Ratanavilisagul, “Face Recognition Using Skin Color Segment and Modified Binary Particle Swarm Optimization,” in Proceedings of the 2022 26th International Computer Science and Engineering Conference (ICSEC), Sakon Nakhon, Thailand, 2022, pp. 66–71.

2023
[4] (conference) J. Samleepant and C. Ratanavilisagul, “Modified Feature Extraction to Apply PSO for Solving Handwritten Digits,” in Proceedings of the 20th International Joint Conference on Computer Science and Software Engineering (JCSSE 2023), 2023.
[5] (conference) A. Homwiseswongsa and C. Ratanavilisagul, “Modified Differential Evolution Algorithm for Solving Multi-Skill Resource-Constrained Project Scheduling Problem,” in 2023 15th International Conference on Information Technology and Electrical Engineering (ICITEE), Chiang Mai, Thailand, 2023, pp. 1–6, doi: 10.1109/ICITEE59582.2023.10317769.

2024


[6] (conference) S. Janprasit, N. Punkong, C. Ratanavilisagul and S. Kosolsombat, "Enhance Efficient of Support Vector Machine with CNN and PSO for solving Handwritten Digits Recognition," 2024 28th International Computer Science and Engineering Conference (ICSEC), Khon Kaen, Thailand, 2024, pp. 1-5, doi: 10.1109/ICSEC62781.2024.10770723.
[7] (conference) N. Tantikulvichit, S. Kosolsombat and C. Ratanavilisagul, "PDF Malware Detection Using Machine Learning," 2024 IEEE 9th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2024, pp. 30-36, doi: 10.1109/ICCIA62557.2024.10719247.
[8] (conference) A. Tachaapornchai, S. Kosolsombat and C. Ratanavilisagul, "Machine Learning Classification for Intrusion Detection on Computer Networks," 2024 IEEE 9th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2024, pp. 1-4, doi: 10.1109/ICCIA62557.2024.10719336.
[9] (conference) N. Charoenwong, S. Kosolsombat and C. Ratanavilisagul, "Classification Attack on IoT Devices with Machine Learning," 2024 IEEE 9th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2024, pp. 11-17, doi: 10.1109/ICCIA62557.2024.10719134.
[10] (conference) M. Poonpanit, N. Punkong, C. Ratanavilisagul and S. Kosolsombat, "An Improving Genetic Algorithm with Local Search for Solving Capacitated Vehicle Routing Problem," 2024 IEEE 9th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2024, pp. 59-63, doi: 10.1109/ICCIA62557.2024.10719310.
[11] (conference) J. Thongpiem, N. Punkong, C. Ratanavilisagul and S. Kosolsombat, "Hybrid Genetic Algorithm and Ant Colony Algorithm for Solving Travelling Salesman Problem," 2024 IEEE 9th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2024, pp. 69-73, doi: 10.1109/ICCIA62557.2024.10719116.

2025


[12] (conference) P. Viboonsang, S. Kosolsombat and C. Ratanavilisagul, "Leveraging Large Language Model to Augment Cybersecurity Analysis and Response in Thai Language," 2025 9th International Conference on Management Engineering, Software Engineering and Service Sciences (ICMSS), Bangkok, Thailand, 2025, pp. 68-73, doi: 10.1109/ICMSS64503.2025.00028.
[13] (conference) T. Chandaeng, S. Kosolsombat and C. Ratanavilisagul, "Phishing Email Detection Using Large Language Models: A Comparative Analysis of Standalone and Retrieval Augmented Generation Models," 2025 10th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2025, pp. 133-137, doi: 10.1109/ICCIA67866.2025.00032.
[14] (conference) S. Nitkitsomboon, S. Kosolsombat and C. Ratanavilisagul, "Real Estate Chatbot Assistant: Simplifying Property Guidance for Beginners," 2025 10th International Conference on Computational Intelligence and Applications (ICCIA), Haikou, China, 2025, pp. 138-142, doi: 10.1109/ICCIA67866.2025.00033.
[15] (conference) R. Wongsanganan, N. Punkong, P. Viboonsang, S. Kosolsombat and C. Ratanavilisagul, "Comparative Analysis of Machine Learning, Deep Learning, and Large Language Models for Fake News Detection," 2025 10th International Conference on Business and Industrial Research (ICBIR), Bangkok, Thailand, 2025, pp. 176-180, doi: 10.1109/ICBIR65229.2025.11163282.

2026


[16] (joural Q3) Somkiat Kosolsombat, Phatnattachat Chatsiraphon, Taratep Si-Aksorn and Chiabwoot Ratanavilisagul****. "Evaluating Open-Source LLMs for Thai Clinical Information Extraction". International Journal of Advanced Computer Science and Applications (IJACSA), Vol. 17, No. 4, 2026. https://doi.org/10.14569/IJACSA.2026.0170460
[17] (Journal Q3) S. Kosolsombat and C. Ratanavilisagul****, "Multi-Relation Knowledge Graph-Guided Transformer with Objective-Aware Route Selection for Vehicle Routing Problems with Time Windows," International Journal of Advanced Computer Science and Applications (IJACSA), vol. 17, no. 6, 2026.

[18] (Accepted) (conference) Pornthep Khongchai, Somkiat Kosolsombat, Chiabwoot Ratanavilisagul****, Label Quality versus Label Quantity: Fine-tuning WangchanBERTa on Human-Annotated Ground Truth for Thai Student Course Evaluation Feedback Classification, 2026 11th International Conference on Computational Intelligence and Applications (ICCIA 2026)

[19] (Accepted) (conference) Yanyong Mongkolsin, Somkiat Kosolsombat, Chiabwoot Ratanavilisagul****, ACO-Guided Warm-Start Reinforcement Learning for the Vehicle Routing Problem with Time Windows, 2026 11th International Conference on Computational Intelligence and Applications (ICCIA 2026)

[20] (Accepted) (conference) Nattha Jindawnich, Chiabwoot Ratanavilisagul****, Somkiat Kosolsombat, IHRF: An Intelligent Hybrid Retrieval Framework for Administrative Question Answering, 2026 11th International Conference on Computational Intelligence and Applications (ICCIA 2026)

[21] (Accepted) (Journal Q3) Somkiat Kosolsombat, Chiabwoot Ratanavilisagul****, Lightweight Active Defense System for Man-in-the-Middle Attack Detection, Using Hybrid Feature Selection and Deceptor-in-the-Middle Mechanism,Indonesian Journal of Electrical Engineering and Computer Science (IJEECS).
[22] (Accepted) (Journal Q3) Somkiat Kosolsombat, Chiabwoot Ratanavilisagul****, A Robust Machine Learning Pipeline for Multi-Dataset Insurance, Fraud Detection: Integrating Feature Engineering, Class Balancing, and Explainable AI, Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)

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