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교수진

구성원소개

본문 시작

Professor
  • 곽정환교수 이미지
    곽정환 교수
    • 직책 부교수
    • 전공분야 머신러닝, 딥러닝, 컴퓨터 비전, 바이오메디컬 데이터 분석
    • 연구실 미래융합정보관 202호
    • 연락처 Tel : 043-841-5852
      E-mail jgwak@ut.ac.kr

▶ 학력

- Doctor of Philosophy, Gwangju Institute of Science and Technology (Major: Artificial Intelligence and Machine Learning)

- Visiting PhD Student Researcher in Machine Learning, University of Birmingham, United Kingdom.

- Bachelor of Engineering, Korea University


▶ 경력

- June 2017–Mar 2019 Research Professor, Biomedical Research Institute & Department of Radiology, Seoul National University Hospital, South Korea.

- Oct 2016– May 2017 Research Professor, School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, South Korea.

- May 2016–Sep 2016 Postdoctoral Research Associate, School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, South Korea.

- Sep 2014–Apr 2016 Postdoctoral Research Associate, Department of Information and Communications, Gwangju Institute of Science and Technology, South Korea.

- Sep 2009–Aug 2014 Research Assistant, School of Information and Mechanics, Gwangju Institute of Science and Technology, South Korea.


▶ 연구 업적

[학술 논문]

- J. Gwak*, T.K.K. Ho, “Towards Deep Learning Approaches for Learning Structure Motifs and Classifying Biological Sequences from RNA A-To-I Editing Events”, IEEE Access, accepted, 2019. (SCIE, JCR 2018 IF=4.098)

- T. Nguyen, M. Kim, J. Gwak, J-J. Lee, K-Y. Choi, K-H. Lee, and J. G. Kim “Investigation of brain functional connectivity in mild cognitive impairment patients: a fNIRS study”, Journal of Biophotonics, e201800298:1–12, 2019.(SCI, JCR 2018 IF=3.763)

- K-Y. Sim, S-H. Park, K-Y. Choi, J-E. Park, J-S. Lee, B. C. Kim, J. Gwak, W-K. Song, K-H. Lee*, S-G. Park*, “Epitope profiling of plasma antibody in Alzheimer’s disease dementia patients”, Scientific Reports, vol. 9, pp. 4587:1–10(SCI, JCR 2018 IF=4.525)

- J. Kang, J. Gwak*, “Ensemble of Instance Segmentation Models for Polyp Segmentation in Colonoscopy Images”, IEEE Access, vol. 7, pp. 26440– 26447, 2019, in press (SCIE, JCR 2018 IF=4.098)

- T.K.K. Ho, J. Gwak*, C. M. Park, J-I. Song, “Discrimination of Mental Workload Level from Multi-Channel fNIRS using Deep Leaning-based Approaches”, IEEE Access, 2019, vol. 7, pp. 24392– 24403, (SCIE, JCR 2018 IF=4.098)

- O. Prakash, C. M. Park, A. Khare, M. Jeon, J. Gwak*, “Multiscale Fusion of Multimodal Medical Images using Lifting Scheme based Biorthogonal Wavelet Transform,” Optik, vol. 128, pp. 995–1014, 2019 (SCI, JCR 2018 IF=1.914)

- H. Kim, C. M. Park*, J. Gwak, E. J. Hwang, S. Y. Lee, J. Jung, H. Hong, J. M. Goo, “Effect of CT Reconstruction Algorithm on the Diagnostic Performance of Radiomics Models: A Task-Based Approach for Pulmonary Subsolid Nodules,”, American Journal of Roentgenology, vol. 212, pp. 1–7, 2019. (SCI, JCR 2018 IF=3.161)

- C. Kim, J. Gwak, D. Shim*, and M. Jeon, “A framework for automatically constructing a dataset for training a vehicle detector,” International Journal of Computational Vision and Robotics, 2018, Inderscience, vol. 9, no. 2, pp. 192–206, 2019. (Scopus)

- C. Lim, J. Gwak, and M. Jeon*, “Configuration of a min-cost flow network for data association in multi-object tracking,” International Journal of Computational Vision and Robotics, 2018, Inderscience, vol. 8, no. 6, pp.572–590, 2018. (Scopus)

- O. Prakash, J. Gwak, M. Khare, A. Khare and M. Jeon, “Human detection in complex real scenes based on combination of biorthogonal wavelet transform and Zernike moments,”Optik - International Journal for Light and Electron Optics, vol. 157, pp. 1267–1281, 2018. (SCI, JCR 2017 IF=1.191)

- J. Gwak*, “Multi-object tracking through learning relational appearance features and motion patterns,”Computer Vision and Image Understanding, vol. 162, pp. 103–115, 2017. (SCI, JCR 2016 IF=2.498)

- R. K. Lama, J. Gwak, J-S. Park, S-W. Lee*, “Diagnosis of Alzheimer’s disease based on structural MRI images using a regularized extreme learning machine and PCA features,”Journal of Healthcare Engineering, vol. 2017, article ID 5485080, 11 pages, 2017. (SCIE)

- J. Gwak?, G. Park?, and M. Jeon*, “Viewpoint invariant person re-identification for global multi-object tracking with non-overlapping cameras,” KSII Transactions on Internet and Information Systems, vol. 11, no. 4, pp. 2075–2092, 2017. (SCIE)

- E. Yang, J. Gwak, M. Jeon*, “CRF-Boosting: Constructing a robust online hybrid boosting multiple object trackers facilitated by CRF learning,” Sensors, vol. 17, no. 3, pp. 617:1–617:18, 2017. (SCIE, JCR 2016 IF=2.677)

- E. Yang, J. Gwak and M. Jeon*, “Multi-human tracking using part-based appearance modelling and grouping based tracklet association for visual surveillance applications,” Multimedia Tools and Applications, vol. 76, no. 5, pp. 6731–6754, 2017. (SCIE, JCR 2016 IF=1.530).

- J. Gwak, M. Jeon* and W. Pedrycz, “Bolstering efficient SSGAs based on an ensemble of probabilistic variable-wise crossover strategies,” Soft Computing, vol. 20, no. 6, pp. 2149–2176, 2016. (SCIE, JCR 2016 IF=2.472).

- J. Gwak, and K. M. Sim and M. Jeon*, “Novel dynamic diversity controlling EAs for coevolving optimal negotiation strategies,” Information Sciences, vol. 273, pp. 1–32, 2014. (SCI, JCR 2016 IF=4.832, 4 citations, Cover Paper, [7/146, 4.795%, Computer Science, Information Systems]).

- J. Gwak and K. M. Sim*, “A novel method for coevolving PS-optimizing negotiation strategies using improved diversity controlling EDA,” Applied Intelligence, vol. 38, no. 3, pp. 384–417, 2013. (SCI, JCR 2016 IF=1.904)

- J. Gwak* and K. M. Sim, “An augmented EDA with dynamic diversity control and local neighborhood search for coevolution of optimal negotiation strategies,” Applied Intelligence, vol. 38, no. 4, pp. 600–619, 2013.(SCI, JCR 2016 IF=1.904).

- S. Lee, J. Gwak and M. Jeon*, “Vehicle model recognition in video,” International Journal of Signal Processing, Image Processing and Pattern Recognition, vol. 6, no. 2, 2013.


[책]

- T. K. K Ho, J. Gwak*, J.-I. Song, C. M. Park “Utilizing Pretrained Deep Learning Models for Automated Pulmonary Tuberculosis Detection Using Chest Radiography,” Lecture Notes in Artificial Intelligence, vol. 11432, 1–9, Springer, 2019

- H. Jeong, J. Gwak*, C. Park, M. Khare, O. Prakash and J.-I. Song*, “Enabling More Accurate Bounding Boxes for Deep Learning-based Real-time Human Detection Information”, Lecture Notes in Electrical Engineering, vol. 524, pp. 345–356, Springer, 2019

- S. Lee, J. Gwak*, M. Khare, A. Khare and M. Jeon*, “Comparative Study on Person Re-identification using Shape and Color-based Human Body Part Matching information”, Lecture Notes in Electrical Engineering, vol. 524, pp. 313–322, Springer, 2019

- T. K. K Ho, J. Gwak*, A. Khare, C. M. Park and J.-I. Song, “Deep Leaning-based Approach for Mental Workload Stages Discrimination from Multi-Channel fNIRS information”, Lecture Notes in Electrical Engineering, vol. 524, pp. 431–440, Springer, 2019

- M. Khare, P. Srivastava, J. Gwak, A. Khare, “A Multiresolution approach for Content-Based Image Retrieval using Wavelet Transform of Local Binary Pattern”, pp. 529–538, Lecture Notes in Computer Science, vol. 10752, pp 529-538, Springer, 2018

- H. Shin, J. Gwak, J. Yu, M. Jeon*, “Abnormal Event Detection Using Trajectory and Region-Based Approaches,” Advances in Computing, Control and Communication Technology, R.R. Tewari, A. K. Rai, eds., pp. 45–52, Allied Publishers Pvt. Ltd., 2016

- A. Mallak, J. Gwak and S-W Lee*, “Computational and Comparative Study on Multiple Kernel Learning Approaches for the Classification Problem of Alzheimer’s disease,” Nature of Computation and Communication, P. C. Vinh and L Barolli, eds., pp. 334–341, Springer, 2016.

- J. Gwak and K. M. Sim*, “Coevolving negotiation strategies for P-S-optimizing agents”, Lecture Notes in Electrical Engineering, pp. 119–135, Springer, 2011 (Invited paper).     


[국제회의 논문집] (2019~)

- M. Kim, T. Nguyen, J. Gwak, J-J. Lee, K-Y. Choi, K-H. Lee, and J. G. Kim, “Investigation of Cerebral Hemodynamic Changes in Mild Cognitive Impairment Due to Alzheimer’s Disease During a Verbal Fluency Task” in 7th International Conference on the Development of Biomedical Engineering in Vietnam (BME7), June 27-29, 2019, Ho Chi Minh City, Vietnam


[특허]

- J. Gwak, M. Jeon, “A Real-time Visual Anomaly Detection Device and a Method Thereof”, (Application No. 10-2018-0028612)

- J. Gwak, M. Jeon, “Multi-Object Tracking System and Multi-Object Tracking Method using Same”, PCT Patent, Application Completed (Application No. PCT/KR2017/001659)

- J. Gwak, G. Park, M. Jeon, “Object Reidentification Method for Global Multi-Object Tracking”, PCT Patent, Application Completed (PCT/KR2017/002222)

- J. Gwak, M. Jeon, “A Method for Tracking for Tracking Multi-Object Through Relational Appearance Features and Motion Patterns, and a Computer Readable Storage Medium Thereof”, KR Patent, Application Completed(Application No. 10-2017-0010701, Registration No. 10-1866338)

- J. Gwak, G. Park and M. Jeon, “Viewpoint Invariant Re-Identification of Persons for Global Multi-Object Tracking across Non-Overlapping Cameras”, KR Patent, Application Completed (Application No. 10-2016-0024674)

- J. Gwak, E. Yang, M. Jeon, “System for tracking moving multi-target method for tracking of moving multi-target using same”, US Patent, Application Completed (Application No. 62296101); KR Patent, Application Completed(Application No. 10-2016-0024674)

- J. Yu, J. Gwak and M. Jeon, “Alarming apparatus and method for event occurrence, and providing method of event occurrence determination model”, US Patent, Application Completed (Application No. 62295155); KR Patent, Registered (Registration No. 10-1766467)