Teaching Staff
Dr. Waree Kongprawechnon
Date Posted : 2022-01-06
Faculty
:
School of Information, Computer, and Communication Technology (ICT)
Name
:
Dr. Waree Kongprawechnon
Position
:
Associate Professor
E-mail
:
[email protected]
Phone Rangsit
:
Phone Bangkadi
:
+66-2-501-3505~20
Phone Extension
:
5008
Education
GRADUATE SCHOOL OF THE UNIVERSITY OF TOKYO, Tokyo, Japan March 1998
Division of Engineering GPA 3.82
Ph. D. of Engineering 
Majoring in Mathematical Engineering and Information Physics

GRADUATE SCHOOL OF OSAKA UNIVERSITY, Osaka, Japan March 1995
Division for Research of Engineering Science GPA 3.89
Master of Engineering (Control Engineering)

CHULALONGKORN UNIVERSITY, Bangkok,Thailand May 1992
Bachelor of Engineering (Electrical Engineering First Class Honors) GPA 3.60
Academic Awards
  • Thailand Research Fund for Post-Doctoral Research Grant 2000-2001.
  • The Japanese Government Scholarship for studying Master Degree at Osaka University and Doctor Degree at the University of Tokyo from April 1992 to March 1998.
  • Chulalongkorn University, Bachelor of Engineering with the First Class Honors Awarded five academic excellence certificates for five consecutive semesters from the second half of 1989 to year 1992.
Research Areas
The theory in H∞ control, Control theory, Robust control, System identification, Modeling, Adaptive control, Learning control, Neural network and Fuzzy control.
Research Interests
H∞ Control
The advent of H∞ control was a truly remarkable innovation in multivariable theory. It eliminated the classical/modern dichotomy by formulating the design issues of classical control property and has solved it based on the state-space tool of modern theory. The theory-practice gap was no longer a significant issue at the beginning of the 1990s due to a number of successful applications of H∞ control to real design problems, especially applications of H∞ control based robust control theory.

Robust Control
No mathematical system can exactly model a physical system. Nowadays it is gradually being recognized that the real issue of control engineering we were faced with was the difficulty of modeling the plant to be controlled. For this reason we must be aware of how modeling errors might adversely affect the performance of a control system. Robust control theory became the most popular area that was expected to deal with model uncertainty.
Work Experiences
  • Sep99–Present
    Sirindhorn International Institute of Technology, Department of Electrical Engineering Thammasat University, Thailand
    Assistant Professor
    Responsible for giving lectures on Signals & Systems, Feedback Control Systems and Basic Electrical Engineering, Circuit Theory, Linear Systems Theory and conducting Feedback Control Laboratory.
    Responsible for developing both hardware and lab manual for Feedback Control Laboratory.
 
  • Mar91–May91
    UNOCAL Company Limited, Bangkok, Thailand
    Engineering Trainee
    Responsible for studying the communication system connected by radio wave, and satellite within drilling platform and between on-earth base and drilling platform, and by undersea cable between UNOCAL headquarters in Bangkok and the branch office in Songkla.
List of Publications

JOURNAL PAPERS

  • Milan Tripathi, Waree Kongprawechnon and Toshiaki Kondo, A Highly Robust Encoder–Decoder Network with Multi-Scale Feature Enhancement and Attention Gate for the Reduction of Mixed Gaussian and Salt-And-Pepper Noise in Digital Images, Images. J. Imaging 2025, 11, 51,
  • Anuwat Chaiwongyen, Suradej Duangpummet, Jessada Karnjana, Waree Kongprawechnon, Masashi Unoki, Potential of Speech-Pathological Features for Deepfake Speech Detection , IEEE Access, 2024, Volume 12, Pages 121958-121970.
  • Anuwat Chaiwongyen, Suradej Duangpummet, Jessada Karnjana, Waree Kongprawechnon, Masashi Unoki. Replay Attack Detection in Automatic Speaker Verification Using Gammatone Cepstral Coefficients and ResNet-Based Model, Journal of Signal Processing, Vol.26, No.6, pp.171-175, November 2022
  • Kay Thwe Min Han, Pramuk Boonsieng, Waree Kongprawechnon, Pikul Vejjanugraha, Wanicha Ruengkitpinyo, Toshiaki Kondo. An Automated Framework for Screening of Glaucoma using Cup-to-Disc Ratio and ISNT Rule with a Support Vector Machine, Trends in Sciences, Volume 19, Number 9, 1 May 2022, 13 p.
  • Suradej Duangpummet, Jessada Karnjana, Waree Kongprawechnon, Masashi Unoki. Blind estimation of speech transmission index and room acoustic parameters based on the extended model of room impulse response, Applied Acoustics, 185, 2022
  • Yonatan Hutabarat, Kittipong Ekkachai, Mitsuhiro Hayashibe, Waree Kongprawechnon. Reinforcement Q-Learning Control with Reward Shaping Function for Swing Phase Control in Semi Active Prosthetic Knee, Journal: Frontiers in Neurorobotics, (doi: 10.3389/fnbot.2020.565702)
  • S. Duangpummet, J. Karnjana, W. Kongprawechnon. State-of-charge estimation based on theory of evidence and interval analysis with differential evolution optimization, Annals of Operations Research, 16 p.
  • K. T. M. Han, K. Kazunori, P. Siritanawan, W. Kongprawechnon, C. Sinthanayothin. Analysis of power transmission through IOL with glistenings and whitenings by T-Matrix, Journal of Quantitative Spectroscopy and Radiative Transfer, 253: 7 p., 2020.
  • U. Buatoom, W. Kongprawechnon, T. Theeramunkong. Document clustering using k-means with term weighting as similarity-based constraints, Symmetry, 12: (6) 25 p., 2020.
  • M. U. Jamil, W. Kongprawechnon, N. Chayopitak. Eliminating starting hesitation for reliable operation of switched reluctance motor without machine parameters for light electric vehicle applications, IET Electric Power Applications, 13: (7) 996-1003, 2019.
  • O. Srihakulung, R. Maezono, P. Toochinda, W. Kongprawechnon, A. Intarapanich, and L. Lawtrakul. Host-guest interactions of plumbagin with β-cyclodextrin, dimethyl-β-cyclodextrin and hydroxypropyl-β-cyclodextrin: semi-empirical quantum mechanical PM6 and PM7 methods, Scientia Pharmaceutica, 86: (2) 11 p., 2018 
  • P. Ratpunpairoj and W. Kongprawechnon. A robust waveform design for targets tacking in cognitive MIMO radars, WSEAS Transactions on Signal Processing, 14: 115-124, 2018.
  • Jamil, M. U., Kongprawechnon, W., Chayopitak, N. Average torque control of a switched reluctance motor drive for light electric vehicle applications, IFAC-PapersOnLine, 50: (1) 11535-11540, 2017.
  • P. Vejjanugraha, W. Kongprawechnon, T. Kondo, K. Tungpimolrut, and K. Kotani. An automatic screening method for primary open-angle glaucoma assessment using binary and multi-class support vector machines, ScienceAsia, 43: (4) 229-239, 2017.
  • P. Charoen, W. Kongprawechnon, and K. Tungpimolrut. A hybrid particle swarm optimization-SVM classification for automatic cardiac auscultation, Songklanakarin Journal of Science and Technology, 39: (2) 171-178, 2017.
  • I. S. Ardakani, T. Theeramunkong, and W. Kongprawechnon. A FCD–based method for traffic congestion detection in low-proximity data environment, Journal of Intelligent Informatics and Smart Technology, 1:(1) 7 p., 2017.
  • P. Charoen, K. Subpinyo, and W. Kongprawechnon. A novel automatic cardiac auscultation with hybrid ant colony optimization-SVM classification, Suranaree Journal of Science and Technology, 23: (3), 261-269, 2016.
  • M.U. Jamil, W. Kongprawechnon, and M.Q. Raza. Adaptive neural network based backstepping control design for MIMO nonlinear systems with actuator nonlinearities, Aircraft Engineering and Aerospace Technology, 88: (1) 137-150, 2016.
  • T. Poombansao, W. Kongprawechnon, S. Kittipiyakul, C. Theeraworn; M. Charoenlarp, and I. Chunsangnate. Automatic classifying method for wedge tightness by support vector machine and artificial neural network, Suranaree Journal of Science and Technology, 22: (1) 5-14, 2015.
  • S. Wangmanaopituk, H. Voos, and W. Kongprawechnon. A nonlinear model-predictive motion planning and control system for multi-robots in a microproduction system with safety constraints and a global long-term solution, Kasetsart Journal Natural Science, 48: (2) 283-293, 2014.
  • P. Boonsieng, T. Kondo, and W. Kongprawechnon. A robust optical flow estimation technique using gradient orientations, ScienceAsia, 40: (1) 73-83, 2014.
  • C. Theeraworn, W. Kongprawechnon, T. Kondo, P. Bunnun, A. Nishihara; and A. Manassakorn. Automatic screening algorithm for narrow anterior chamber angle and angle-closure glaucoma based on slit-lamp image ananlysis, Kasetsart Journal Natural Science, 47: (6) 940-952, 2013.
  • C. Burana-Anusorn, W. Kongprawechnon, T. Kondo, S. Sintuwong, and K. Tungpimolrut. Image Processing Techniques for Glaucoma Detection Using the Cup-to-Disc Ratio, Thammasat International Journal of Science and Technology, 18: (1) 22-34, 2013.
  • S. Saechai, P. Kulsalanggoorawat, W. Kongprawechnon, and R. Sahamitmongkol. Test system for defect detection in cementitious material with artificial neural network, Songklanakarin Journal of Science and Technology, 35: (2) 217-225, 2013.
  • P. Saranrom, R. Sahamitmongkol, W. Kongprawechnon, and S. Tangtermsirikul. Crack depth classification by ultrasonic measurement system with artificial neural network (ANN), Research and Development Journal of The Engineering Institute of Thailand, 23: (3), 9-16, 2012.
  • P. Boonsieng, T. Kondo, and W. Kongprawechnon. Unit gradient vectors based motion estimation techniques, ECTI Transactions on Electrical Eng., Electronics, and communications, 9: (2), 246-254, August 2011.
  • S. Yuenyong, A. Nishihara, W. Kongprawechnon, and K. Tungpimolrut. A Framework for Automatic Heart Sound Analysis Without Segmentation, Biomedical Engineering Online, 10: (13), 2011.
  • S. Wangmanaopituk, H. Voos, and W. Kongprawechnon. Collaborative Nonlinear Model-Predictive Motion Planning and Control of Mobile Transport Robots for a Highly Flexible Production System, ScienceAsia: Journal of the Science Society of Thailand, 36: (4) 333-341, 2010.
  • P. Jaiwat, T. Sirijuntanun, W. Kongprawechnon, T. Kondo, and K. Tungpimolrut. Image Enchancement Techniques for Tele-SLIT Lamp Microscopy, Suranaree Journal of Science and Technology, 17: (4) 1-12, 2010.
  • K. Chansuriyasak, C. Wanichlamlart, P. Sancharoen, W. Kongprawechnon, and S. Tangtermsirikul. Comparison Between Half-Cell Potential of Reinforced Concrete Exposed to Carbon Dioxide and Chloride Environment, Songklanakarin Journal of Science and Technology, 32: (5) 461-468, 2010.
  • K. Chansuriyasak, C. Wanichlamlart, P. Sancharoen, W. Kongprawechnon, and S. Tangtermsirikul. Evaluation on Use of Half-cell Potential for Measuring Corrosion Potential of Steel Bars in Reinforced Concrete Subjected to Carbonation, Research and Development Journal of The Engineering Institute of Thailand, 21: (3) 92-98, 2010.
  • S. Pothiya, I. Ngamroo, and W. Kongprawechnon. Ant Colony Optimisation for Economic Dispatch Problem with Non-Smooth Cost Functions, International Journal of Electrical Power & Energy Systems, 32: (5) 478-487, 2010.
  • T. Kondo and W. Kongprawechnon. A Matching Technique Using Gradient Orientation Patterns, Thammasat International Journal of Science and Technology, 14: (3) 41-45, 2009.
  • T. Kondo and W. Kongprawechnon. Robust Motion Estimation Methods Using Gradient Orientation Information, ScienceAsia: Journal of the Science Society of Thailand, 35: (2) 189-195, 2009.
  • S. Wongsura and W. Kongprawechnon. Discrete-Time Feedback Error Learning and Nonlinear Adaptive Controller, ECTI-Transactions on Electrical Eng., Electronics, and Communications, 6: (2) 9-16, 2008.
  • S. Pothiya, I. Ngamroo, and W. Kongprawechnon. Application of Multiple Tabu Search Algorithm to Solve Dynamic Economic Dispatch Considering Generator Constraints, Energy Conversion and Management, 49: (4) 506-516, 2008.
  • C. Gierl, T. Kondo, H. Voos, W. Kongprawechon, and S. Phoojaruenchanachai. Image Processing Algorithms for an Auto Focus System for Slit Lamp Microscopy, Lecture Notes in Computer Science (Advanced Concepts for Intelligent Vision Systems), Vol. 4678/2007: 909-919, 2007.
  • S. Pothiya, C. Khamsum, W. Kongprawechnon, and I. Ngamroo. Design of Optimal PID Controller Using Improved Genetic Algorithm for AGC Including SMES Units, GMSARN International Journal, 43-48, 2007.
  • S. Wongsura and W. Kongprawechnon. Discrete-Time Feedback Error Learning with Time-Delay, Suranaree Journal of Science and Technology, 14: (3) 247-255, 2007.
  • S. Wongsura and W. Kongprawechnon. New Theoretical Analysis for the Discrete-Time Feedback Error Learning Method, Thammasat International Journal of Science and Technology, 12: (4) 62-73, 2007.
  • S. Wongsura and W. Kongprawechnon. Robust Discrete-Time Feedback Error Learning. ScienceAsia: Journal of the Science Society of Thailand, 32 (3) 241-251, 2006.
  • S. Wongsura and W. Kongprawechnon. Discrete-Time Feedback Error Learning Suranaree Journal of Science & Technology, 12: (4) 266-275, 2005.
  • P. Chantanakajornfung, P. Chevathamanon and W. Kongprawechnon. Model Reference Adaptive Control with Liapunov and Anti-Fluctuate Integrated, Journal of Thai Robotics Society J-TRS, 3 No. 1, 103 -110, 2005.
  • I. Ngamroo and W. Kongprawechnon. A Robust Controller Design of SSSC for Stabilization of Frequency Oscillations in Interconnected Power Systems, Electric Power Systems Research, 67: 161-176, 2003.
  • W. Kongprawechnon, S. Ushida and H. Kimura. Structure of Discrete-time H-infinity Controller, Journal of the Science Society of Thailand, 20: 49-55, 2000.
  • W. Kongprawechnon and H. Kimura. J-Lossless Factorization and H-infinity Control for Discrete-Time Systems, International Journal of Control, 70: 433-446, 1998.
  • W. Kongprawechnon and H. Kimura. J-Lossless Conjugation and Factorization for Discrete-Time Systems, International Journal of Control, 65: 867-884, 1996.

CONFERENCES

  • U. Buatoom, W. Kongprawechnon, and T. Theeramunkong. Constrained clustering with seeds and term weighting scheme. At the 13th International Conference on Knowledge, Information and Creativity Support Systems (KICSS 2018), Pattaya City, Chonburi, Thailand, November 15-17, 2018.
  • P. Vejjanugraha, K. Kotani, W. Kongprawechnon, T. Kondo, and K. Tungpimolrut. A quantification technique of air trapping in lungs using stepwise regression and neural network from end-inspiratory and end-expiratory CT-images. At the 13th International Conference on Knowledge, Information and Creativity Support Systems (KICSS 2018), Pattaya City, Chonburi, Thailand, November 15-17, 2018.
  • W. Wasusatein, S. Nittayawan, and W. Kongprawechnon. Speed control under load uncertainty of induction motor using neural network auto-tuning PID controller. At the 11th International Conference on Embedded Systems and Intelligent Technology (ICESIT 2018) in cooperation with The 9th International Conference on Information and Communication Technology for Embedded Systems (IC-ICTES 2018), Khon Kaen, Thailand, May 7-9, 2018.
  • N. Tantiprapha, S. Usanavasin, and W. Kongprawechnon. Hourly electricity load forecasting using optimized support vector regression for demand response. At the 10th International Conference on Embedded Systems and Intelligent Technology (ICESIT 2017), Bangkok, Thailand, August 2-4, 2017.
  • M. U. Jamil, W. Kongprawechnon, and N. Chayopitak. Indirect torque control and estimation of a variable reluctance motor drive by using Fourier Series for light electric vehicle applications. At the 10th International Conference on Embedded Systems and Intelligent Technology (ICESIT 2017), Bangkok, Thailand, August 2-4, 2017.
  • U. Buatoom, W. Kongprawechnon, and T. Theeramunkong. Constrained clustering with feature weighting scheme. At the 2017 4th Asian Conference  on Defence Technology (4th ACDT), Tokyo, Japan, November 29 - December 1, 2017.
  • O. Srihakulung, L. Lawtrakul, P. Toochinda, and W. Kongprawechnon, A. Intarapanich; and R. Maezono. Theoretical investigation of molecular calculations on inclusion complexes of plumbagin with β-cyclodextrins. At the 2017 4th Asian Conference  on Defence Technology (4th ACDT), Tokyo, Japan, November 29 - December 1, 2017.
  • Y. C. A. Hutabarat, W. Kongprawechnon, and K. Ekkachai. Rule based intent recognizer in sit to stand movement based on knee angle and ground reaction force. At the 5th International Conference on Instrumentation, Communication, Information Technology, and Biomedical Engineering 2017 (ICICI-BME 2017), Bandung, Indonesia, November 6-7, 2017.
  • N. Chaovalit, W. Kongprawechnon, and K. Ekkachai. On-line neural network predictive control for swing phase control of MR damper prosthetic knee. At the SICE Annual Conference 2017 (SICE 2017), Kanazawa, Japan, September 19-22, 2017.
  • Y. C. A. Hutabarat, K. Ekkachai, and W. Kongprawechnon. Knee torque estimation in non-pathological gait using dynamics modelling and feed-forward neural network. At the SICE Annual Conference 2017 (SICE 2017), Kanazawa, Japan, September 19-22, 2017.
  • W. Viriyavit, V. Sornlertlamvanich, W. Kongprawechnon, and P. Pongpaibool. Bed posture classification using noninvasive bed sensors for elderly care. At the 27th International Conference on Information Modelling and Knowledge Bases (EJC 2017), Krabi, Thailand, June 5-9, 2017.
  • M. Hayashi, Y. Koide, K. Matsuhara, S. Ushida, H. Oku, and W. Kongprawechnon. Adaptive modeling and compliance control for RC servo motor. At the SICE Annual Conference 2017 (SICE 2017), Kanazawa, Japan, September 19-22, 2017.
  • W. Viriyavit, V. Sornlertlamvanich, W. Kongprawechnon, and P. Pongpaibool. Neural network based bed posture classification enhanced by Bayesian approach. At the 8th International Conference of Information and Communication Technology for Embedded Systems (IC-ICTES 2017), Chonburi, Thailand, May 7-9, 2017.
  • P. Vejjanugraha, M. Kanazashi, J. Izawa, K. Kotani, and W. Kongprawechnon. Inhomogeneous motion analysis of 3-D lung surface by evaluating feature correspondence of active surface model. At the 55th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE 2016), Tsukuba, Japan, September 20-23, 2016.
  • H. Mikiya, K. Shibata, S. Ushida, H. Oku, and W. Kongprawechnon. Compliance control of the RC servo motor with adaptive identifier. At the 55th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE 2016), Tsukuba, Japan, September 20-23, 2016.
  • U. Buatoom, T. Theeramunkong, and W. Kongprawechnon. A regression-based SVD parallelization using overlapping folds for textual data. At the 14th Pacific Rim International Conference on Artificial Intelligence (PRICAI 2016), Phuket, Thailand, August 22-26, 2016.
  • I. S. Ardakani, W. Kongprawechnon, T. Theeramunkong, P. Bunnun; T. Isshiki; and A. Manassakorn. Parameterization of Limbus Distance in Van Herick method's angle closure glaucoma diagnosis. At the 2016 7th International Conference of Information and Communication Technology for Embedded Systems (IC-ICTES 2016), Bangkok, Thailand, March 20-22, 2016.
  • W. Ruengkitpinyo, P. Vejjanugraha, W. Kongprawechnon, T. Kondo, P. Bunnun, and H. Kaneko. An automatic glaucoma screening algorithm using cup-to-disc ratio and ISNT rule with support vector machine. At the 41st Annual Conference of the IEEE Industrial Electronics Society (IECON2015) [CD-ROM], Yokohama, Japan, November 9-12, 2015. 
  • I. S. Ardakani, T. Theeramunkong, and W. Kongprawechnon. Traffic congestion identification using Bayesian inference on Gaussian mixture models. At the 10th International Conference on Knowledge Information and Creativity Support Systems (KICSS 2015) [CD-ROM],  Phuket, Thailand, November 12-14, 2015.
  • I. S. Ardakani, T. Theeramunkong, W. Kongprawechnon, W. Pattara-atikom, and T. Isshiki. Traffic congestion classification using artificial neural networks. At the 10th International Conference on Knowledge Information and Creativity Support Systems (KICSS 2015) [CD-ROM], Phuket, Thailand, November 12-14, 2015.
  • P. Sopajitwattana, T. Kondo, and W. Kongprawechnon. A robust stereo matching method using unit gradient vectors. At the 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2015), Prachuap Khiri Khan, Thailand, June 24-27, 2015.
  • P. Ratpunpairoj, W. Kongprawechnon, K. Fukawa, and K. Kaemarungsi. A particle filter for objects tracking in cognitive MIMO system. At the 2015 6th annual International Conference on Information and Communication Technology for Embedded Systems (IC-ICTES 2015), Prachuap Khiri Khan, Thailand, March 22-24, 2015.
  • K. Y. Khumchoo and W. Kongprawechnon. Cluster analysis for primary feeder identification using metering data. At the 6th International Conference on Information and Communication Technology for Embedded Systems (IC-ICTES 2015) [CD-ROM], Prachuap Khiri Khan, Thailand, March 22-24, 2015.
  • W. Ruengkitpinyo, W. Kongprawechnon, T. Kondo, P. Bunnun, and H. Kaneko. Glaucoma screening using rim width based on ISNT rule. At the 6th International Conference on Information and Communication Technology for Embedded Systems (IC-ICTES 2015) [CD-ROM], Prachuap Khiri Khan, Thailand, March 22-24, 2015.
  • T. Poombansao, W. Kongprawechnon, C. Theeraworn, and S. Kittipiyakul. Automatic wedge tightness classifying system by support vector machine. At the 6th International Conference on Information and Communication Technology for Embedded Systems (IC-ICTES 2015) [CD-ROM], Prachuap Khiri Khan, Thailand, March 22-24, 2015.
  • P. Ratpunpairoj and W. Kongprawechnon. Adaptive waveform for cognitive radar to minimize cramér-rao bound. At the 2nd International Conference on Intelligent Systems and Image Processing 2014 (ICISIP-2014), Kitakyushu, Japan, September 26-29, 2014.
  • P. Vejjanugraha, W. Kongprawechnon, T. Kondo, K. Tungpimolrut, H. Kaneko, and S. Sintuwong. An automatic glaucoma screening technique using cup-to-disc ratio (CDR) and β-peripapillary atrophy (β-PPA). At the SICE Annual Conference 2014 (International Conference on Instrumentation, Control, Information Technology and System Integration) [CD-ROM], Sapporo, Japan, September 9-12, 2014.
  • P. Vejjanugraha, W. Kongprawechnon, T. Kondo, K. Tungpimolrut, H. Kaneko, and S. Sintuwong. An automatic screening method for detecting glaucoma using multi-class support vector machine. At the International Conference on Information and Communication Technology for Embedded Systems (ICICTES2014) [CD-ROM], Ayutthaya, Thailand, January 23-25, 2014.
  • W. Ruengkitpinyo, T. Kondo, and W. Kongprawechnon. An image segmentation method for glaucoma detection using the CDR. At the Second Asian Conference on Information Systems (ACIS 2013) [CD-ROM], Phuket, Thailand, October 31 – November 2, 2013.
  • P. Vejjanugraha, W. Kongprawechnon, T. Kondo, S. Sintuwong, and K. Tungpimolkul. An automatic glaucoma detection method using support vector machine. At the International Conference on Instrumentation, Control, Information Technology and System Integration (SICE Annual Conference 2013) [CD-ROM], Nagoya, Japan, September 14-17, 2013.
  • C. Theeraworn, W. Kongprawechnon, T. Kondo, P. Bunnun, A. Nishihara, and A. Manassakorn. Automatic screening of narrow anterior chamber angle and angle-closure glaucoma based on slit-lamp image analysis by using support vector machine. At the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE EMBC 2013) in conjunction with the 52nd Annual Conference of Japanese Society for Medical and Biological Engineering (JSMBE) [CD-ROM], Osaka, Japan, July 3-7, 2013.
  • S. Banpavichit, W. Kongprawechnon, and K. Tungpimolrut. Cardiac auscultation with hybrid GA/SVM. At the 9th International Conference on Computing and Information Technology (IC2IT2013), Bangkok, Thailand, May 9-10, 2013.
  • P. Ratpunpairoj, W. Kongprawechnon, T. Kondo, and P. Bunnun. Automatic screening angle-closure glaucoma using hybrid GA and SVM in slit lamp images. At the International Conference on Information and Communication Technology for Embedded Systems (ICICTES 2013), Samutsongkhram, Thailand, January 24-26, 2013.
  • C. Theeraworn, W. Kongprawechnon, T. Kondo, P. Bunnun, A. Nishihara, and A. Manassakorn (2013). Automatic screening of angle-closure glaucoma based on slit-lamp image analysis. At the International Conference on Information and Communication Technology for Embedded Systems (ICICTES 2013), Samutsongkhram, Thailand, January 24-26, 2013.
  • S. Saechai, W. Kongprawechnon, and R. Sahamitmongkol. Test system for defect detection in construction materials with ultrasonic waves by support vector machine and neural network. At the 6th International Conference on Soft Computing and Intelligent Systems, and the 13th International Symposium on Advanced Intelligent Systems (SCIS-ISIS 2012) [CD-ROM], Kobe, Japan, November 20-24, 2012.
  • N. Wongsuwan, W. Kongprawechnon, R. Sahamitmongkol, and S. Komolavanij. Development of DAQ system for ultrasonic test for defect detection. At the First ASIAN Conference on Information Systems (ACIS 2012) [CD-ROM], Siem Reap, Cambodia, December 6-8 ,2012.
  • Pipatthana Phatiwuttipat, Waree Kongprawechnon, and Somrote Komolavanij. Neural network and support vector machine approach for analyzing small and medium-sized enterprises lending decisions in Thailand. At the 2012 International Conference on Business and Information (BAI 2012) [CD-ROM], Sapporo, Japan, July 3-5,2012.
  • I. Chatunapalak; P. Phatiwuttipat; W. Kongprawechnon; and K. Tungpimolrut. Childhood musical murmur classification with support vector machine technique. At the 2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2012) [CD-ROM], Phetchaburi, Thailand, May 16-18, 2012.
  • K. Rakjaeng, W. Kongprawechnon, T. Kondo, K. Tungpimolrut, N. Sugino, and A. Manassakorn. Automatic screening of angle-closure glaucoma using peripheral anterior chamber depth estimation in slit-lamp images. At the Third International Conference on Information and Communication Technology for Embedded Systems (ICICTES2012) [CD-ROM], Bangkok, Thailand, March 22-24, 2012.
  • C. Burana-Anusorn, W. Kongprawechnon, T. Kondo, S. Sintuwong, and K. Tungpimolrut. Optic cup and disc segmentation for automatic glaucoma detection. At the Third International Conference on Information and Communication Technology for Embedded Systems (ICICTES2012) [CD-ROM], Bangkok, Thailand, March 22-24, 2012.
  • Saowanee Saechai, Pansaran Saranrom, Raktipong Sahamitmongkol, Waree Kongprawechnon, and Somnuk Tangtermsirikul. Defect detection and crack classification in cementitious materials by ultrasonic testing with ANN. At the 10th International Symposium on New Technologies for Urban Safety of Mega Cities in Asia (USMCA 2011) [CD-ROM], Chiang Mai, Thailand, October 12-14, 2011.
  • Suparchoek Wangmanaopituk, Holger Voos, Waree Kongprawechnon, and Somrote Komolavanij. A flexible agent-based system for customized microproduction using multi-robot system, At the 30th JSST Annual Conference (JSST 2011) International Conference on Modeling and Simulation Technology [CD-ROM], Tokyo, Japan, October 22-23, 2011.
  • Pramuk Boonsieng, Toshiaki Kondo, and Waree Kongprawechnon. Feature-based gradient orientation structure tensor method. At the 30th JSST Annual Conference (JSST 2011) International Conference on Modeling and Simulation Technology [CD-ROM], Tokyo, Japan, October 22-23, 2011.
  • K. Rakjaeng, W. Kongprawechnon, T. Kondo, K. Tungpimolrut, N. Sugino and A. Manassakorn. An automated method for angle-closure glaucoma screening in slit-lamp images. At the 30th JSST Annual Conference (JSST 2011) International Conference on Modeling and Simulation Technology [CD-ROM], Tokyo, Japan, October 22-23, 2011.
  • S. Saechai, P. Kusalanggoorawat, W. Kongprawechnon, and R. Sahamitmongkol. New Developed Testing System of Defect in Cementitious Material with Neural Network. At the 8th Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) Association, Thailand – Conference (ECTI-CON 2011), Khon Kaen, Thailand, May 17-19, 2011.
  • P. Phatiwuttipat, W. Kongprawechon, K. Tungpimolrut, and S. Yuenyong. Cardiac Auscultation Analysis System with Neural Network and SVM Technique. At the 8th Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) Association, Thailand – Conference (ECTI-CON 2011), Khon Kaen, Thailand, May 17-19, 2011.
  • S. Umpavan, S. Chankaew, W. Kongprawechnon, and T. Phatrapornnant. System Identification for AC Servo Motor and Dynamometer Using ARX Model and NNARX Model. At the 4th Asia International Symposium on Mechatronics (AISM 2010), Singapore, December 15-18, 2010.
  • P. Kheawchaoom, T. Chanasuan and W. Kongprawechnon. Swing-Up Fuzzy Controller and Adaptive State Controller for Inverted Pendulum on Cart System. At the 4th Asia International Symposium on Mechatronics (AISM 2010), Singapore, December 15-18, 2010.
  • K. Chansuriyasak, P. Sancharoen, C. Wanichlamlert, S. Tangtermsirikul, and W. Kongprawechnon. Comparison Between Half-cell Potential and Macrocell Corrosion Current Measurement of Reinforcing Steel Corrosion Due to Chloride. At the 4th Asian Concrete Federation International Conference (ACF 2010), Taipei, Taiwan, November 28 - December 1, 2010.
  • T. Amnuaiphon, W. Kongprawechnon, T. Phatrapornnant, and T. Isshiki. A comparative Study of PI, FLC, and FEL Controllers for Eddy-current Dyanmometers. At the 25th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2010), Pattaya, Thailand, July 4-7, 2010.
  • T.M.M. Swe, T. Kondo, and W. Kongprawechnon. Moving Object Extraction and Motion Classification for Surveillance Image Sequences. At the International Conference on Embedded Systems and Intelligent Technology (ICESIT 2010), Chiang Mai, Thailand, February 5-7, 2010.
  • T. Amnuaiphon, W. Kongprawechnon, I. Nilkhamhang, T. Phatrapornnant, and T. Isshiki. Performance Improvement of Eddy-Current Dynamometers with FEL Controller. At the International Conference on Information and Communication Technology for Embedded Systems 2010 (ICICTES 2010), Pathum Thani, Thailand, January 28-30, 2010.
  • S. Kumpituck, T. Kondo, I. Nilkhamhang, W. Kongprawechnon, K. Tungpimolrut, and A. Nishihara. A Robustness Study of Stereo Matching Techniques. At the International Conference on Information and Communication Technology for Embedded Systems 2010 (ICICTES 2010), Pathum Thani, Thailand, January 28-30, 2010.
  • S. Yuenyong, W. Kongpravechnon, K. Tungpimolrut, and A. Nishihara. A Novel Method for Heart Murmur Detection without Segmentation of Phonocardiogram. At the International Conference on Information and Communication Technology for Embedded Systems 2010 (ICICTES 2010), Pathum Thani, Thailand, January 28-30, 2010.
  • S. Keerativittayanun, K. Rakjaeng, T. Kondo, W. Kongprawechnon, K. Tungpimolrut, and T. Leelasawassuk. Eye Tracking System for Ophthalmic Operating Microscope. At the ICROS-SICE International Joint Conference 2009, Fukuoka, Japan, August 18-21, 2009.
  • S. Yuenyong, W. Kongpravechnon, K. Tungpimolrut, and A. Nishihara. Automatic Heart Sound Analysis for Tele-Cardiac Auscultation. At the ICROS-SICE International Joint Conference 2009, Fukuoka, Japan, August 18-21, 2009.
  • P. Charukamnoetkanok, K. Ekkachai, N. Klanarongran, T. Leelasawassuk, P. Komeswarakul, P. Suramethakul, O. Thonginnetra, S. Asawaphureekorn, S. Sintuwong, K. Tungpimolrut, W. Kongprawechon, P. Pangputhipong. Robotic Slit-lamp for Tele-ophthalmology. At the ICROS-SICE International Joint Conference 2009, Fukuoka, Japan, August 18-21, 2009.
  • S. Wangmanaopituk, H. Voos, and W. Kongprawechnon. Collaborative Nonlinear Model-Predictive Collision Avoidance and Path Following of Mobile Robots. At the ICROS-SICE International Joint Conference 2009, Fukuoka, Japan, August 18-21, 2009.
  • S. Kumpituck, W. Kongprawechnon, T. Kondo, I. Nilkhamhang, K. Tungpimolrut, and A. Nishihara. Stereo Based Vision System for Cardiac Auscultation Tele-Diagnostic System. At the ICROS-SICE International Joint Conference 2009, Fukuoka, Japan, August 18-21, 2009.
  • P. Jaiwat, T. Sirijuntanun, W. Kongprawechnon, T. Kondo, K. Ekkachai, T. Leelasawassuk, and K. Tungpimolrut. Auto Focusing and Image Enhancement Techniques for Tele-Slit Lamp Microscopy. At the 2nd Biomedical Engineering International Conference (BMEiCON 2009), Phuket, Thailand, August 13-14, 2009.
  • W. Kongprawechnon, S. Komolavanij, M. Tsuji, Y. Ueki, V. Ammarapala, and C. Jeenanunta. The Analysis on te Surveys in the Development of Industrial Agglomeration in Thailand. At the International Symposium on Scheduling 2009, Nagoya, Japan, July 4-6, 2009.
  • T. Kondo and W. Kongprawechnon. A Block Matching Technique Using Unit Gradient Vectors. At the IAPR Conference on Machine Vision Applications (MVA 2009), Yokohama, Japan, May 20-22, 2009.
  • K. Chansuriyasak, C. Wanichlamlart, P. Sancharoen, W. Kongprawechnon, and S. Tangtermsirikul. Comparison between Half-cell Potential Measurements of Concrete Exposed to Carbon Dioxide and Chloride Environment. At the Annual Concrete Conference 5, Nakhon Ratchasima, Thailand, October 20-22, 2009.
  • N. Phaoharuhansa, K. Krishnamra, S. Nanthavanij, and W. Kongprawechnon. Computer Workstation Evaluation Approach by Neural Network (NN). At the Sixth International Conference on Manufacturing Research (ICMR08), West London, UK, September 9-11, 2008.
  • T. Kondo, P. Boonsieng, and W. Kongprawechnon. Improved Gradient-Based Methods for Motion Estimation in Image Sequences. At the SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology, Tokyo, Japan, August 20-22, 2008.
  • N. Suwanjatuporn, M. Napaamporn, W. Kongprawechnon, and S. Wongsura. Nonlinear Discrete-Time Feedback Error Learning with PI Controller for AC Servo Motor. At the SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology, Tokyo, Japan, August 20-22, 2008.
  • P. Jiewpaibul, B. Piriyanont, W. Kongprawechnon, T. Kondo, and S. Phoojaruenchanachai. Fuzzy Controller and Image Enhancement for Slit Lamp Microscopy. At the 2008 Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) International Conference (ECTI-CON 2008), Krabi, Thailand, May 14-17, 2008.
  • T.M.M. Swe, T. Kondo, and W. Kongprawechnon. Image Sequence Segmentation Using the Gradient Structure Tensor Method and Self-Organizing Map. At the 2008 Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) International Conference (ECTI-CON 2008), Krabi, Thailand, May 14-17, 2008.
  • B. Phokaphan, P. Guptabutra, T. Onwan, S. Wongsura, and W. Kongprawechnon. Theoretical Discussion on the Discrete-Time Feedback Error Learning for a Time Delay System with an Uncertainty Plant Model by using a PD Controller. At the Fourth Power Conversion Conference (PCC), Nagoya, Japan, April 2-5, 2007.
  • C. Gierl, T. Kondo, H. Voos, W. Kongprawechnon, and S. Phoojaruenchanachai. Automatic Focusing of a Motorized Photo Slit Lamp Microscope. At the 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE EMBC2007), Lyon, France, August 23-26, 2007.
  • K. Ngokkham, N, Wattanakhajeegul, S. Komolavanij, and W. Kongprawechnon. A Neural Network Approach for Analyzing Small and Medium-Sized Enterprises Lending Decisions in Thailand. At the International Conference on Engineering Applied Sciences, and Technology (ICEAST 2007), Bangkok, Thailand, November 21-23, 2007.
  • K. Mingsakun, P. Piyapinyo, S. Komolavanij, and W. Kongprawechnon. The Project Selection Model by Fuzzy Linear Programming. At the International Conference on Engineering Applied Sciences, and Technology (ICEAST 2007), Bangkok, Thailand, November 21-23, 2007.
  • K. Mingsakun, S. Komolavanij, and W. Kongprawechnon. An Outsourcing Model by Fuzzy Linear Programming, at the 3rd International Congress on Logistics and SCM Systems (ICLS2007), Yokohama, Japan, August 28-30, 2007.
  • K. Ngokkham, W. Kongprawechnon, and S. Komolavanij. Neural Network Approach for Analyzing Partnerships, The 3rd International Congress on Logistics and SCM Systems (ICLS2007), Yokohama, Japan, August 28-30, 2007.
  • S. Pothiya, I. Ngamroo, and W. Kongprawechnon. Design of Optimal Fuzzy Logic-Based PID Controller Using Multiple Tabu Search Algorithm for AGC Including SMES Units. At the 8th International Power Engineering Conference (IPEC 2007), Singapore, December 3-6, 2007.
  • S. Wongsura and W. Kongprawechnon. Discrete-time Feedback Error Learning for Unknown Nonlinear Systems, at the Second International Conference on Innovative Computing, Information and Control, Kumamoto, Japan, September 5-7, 2007.
  • S. Wongsura and W. Kongprawechnon. Discrete-time Feedback Error Learning without recourse to Positive realness, at the MTNS Conference (Mathematics Theory of Network and System), Kyoto, Japan, July 24-28, 2006.
  • M. Sinworapun, P. Yongrakkiert and W. Kongprawechnon. Fuzzy PI-P Controller For DC Motor System When Disturbance Occurs, 2006 ECTI International Conference (ECTI-CON2006), Ubon Ratchathani, Thailand, May 10-13, 2006.
  • T. Tanakorn, N. Hanpadungdhama, S. Wongsura and W. Kongprawechnon. Discrete-time Feedback Error Learning with Phased-lead Controller, 2006 ECTI International Conference (ECTI-CON2006), Ubon Ratchathani, Thailand, May 10-13, 2006.
  • I. Ngamroo and W. Kongprawechnon. Design of Robust Frequency Stabilizers of Superconducting Magnetic Energy Storages 2005 International Conference on Information,Communication and Signal Processing(ICICS2005), Bangkok, Thailand, during December 6-9, 2005.
  • S. Wongsura and W. Kongprawechnon. Feedback Error Learning with PD Controller, 2005 International Conference on Control, Automation and Systems (ICCAS2005), Seoul, Korea, June 2-5, 2005.
  • S. Kongviwattanakun, T. Kato, S. Yuenyoung and W. Kongprawechnon. Robust Feedback Error Learning, 2005 ECTI International Conference (ECTI-CON2005), Pattaya, Thailand, May 12-13, 2005.
  • S. Kongviwattanakun, T. Kato, S. Yuenyoung and W. Kongprawechnon. Improved FEL by Integrating with MRAC, 2005 ECTI International Conference (ECTI-CON2005), Pattaya, Thailand, May 12-13, 2005.
  • S. Rodjananond, S. Rodjananond, B. Benjamas and W. Kongprawechnon. Maximize Profits in Online Registration Using Fuzzy Logic, 2005 ECTI International Conference (ECTI-CON2005), Pattaya, Thailand, May 12-13, 2005.
  • S. Wongsura, W. Kongprawechnon and S. Phoojaruenchanachai. Feedback Error Learning and H-infinity Control for Motor Control, 2004 International Conference on Control, Automation and Systems (ICCAS2004), Bangkok, Thailand, during August 25-27, 2004.
  • O. Ratanapinanchai, C. Theerasilp, T. Suksawai, K. Chongsrid and W. Kongprawechnon. Approached to Simulate the Operation of the Bending Machine. At the MTNS Conference (Mathematics Theory of Network and System), Leuven, Belgium, July 5-9, 2004.
  • W. Kongprawechnon and H. Kimura. Unnormalized Discrete-time H-infinity Control Problem. At the 2002 IEEE the International Conference on Industrial Technology, Bangkok, Thailand, December 11- 14, 2002.
  • W. Kongprawechnon and H. Kimura. Closed-Loop Structure of Discrete-time H-infinity Controller. At the MTNS Conference (Mathematics Theory of Network and System), Notre Dame, Indiana USA, August 12-16, 2002.
  • W. Kongprawechnon and H. Kimura. J-lossless Factorization and H-infinity Control for Discrete-time Systems. At the MTNS Conference (Mathematics Theory of Network and System), MO, USA, June 24-28, 1996.
  • W. Kongprawechnon and H. Kimura. Discrete-time J-lossless Factorization. At the SICE & ISCIE Conference (The Society of Instrument and Control Engineering & The Institute of Systems, Control and Information Engineers), Osaka, Japan, November 16-18, 1994.

BOOK

  • W. Kongprawechnon and H. Kimura. J-lossless Conjugation for Discrete-time Systems and Its Sequential Structure, The workshop Proceedings dedicated to Professor Thomas Kailath, page 259-278, 1997
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