H. Seung, J. Lee, and H. Ko, "Low-Rank Curvature for Zeroth-Order Optimization in LLM Fine-tuning," The 40th Annual AAAI Conference on Artificial Intelligence (AAAI), Jan., 2026. (BK 우수국제학술대회) 

H. Seung, J. Lee, and H. Ko,"MAC: An Efficient Gradient Preconditioning using Mean Activation Approximated Curvature," IEEE International Conference on Data Mining, Nov., 2025. (BK 우수국제학술대회)

 H. Ko, et. al., "Phase Distribution Matters: On the Importance of Phase Distribution Alignment (PDA) in Holographic Applications", ACM International Conference on Multimedia, Oct., 2025.(BK 우수국제학술대회)

J. seo, H. Jang, Y. Kim, S. Y. Jeong, and H. Ko, "KaFeS: Kurtosis-adjusted Feature Scaling for Object Tracking Tasks," IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR), 2025. 

H. Seung, J. Lee, and H. Ko, "NysAct: A Scalable Preconditioned Gradient Descent using Nystrom Approximation," IEEE International Conference on Big Data, Dec., 2024. (BK 우수국제학술대회)

H. Seung, J. Lee, and H. Ko, "An Adaptive Method Stabilizing Activations for Enhanced Generalization," IEEE International Conference on Data Mining Workshop, Dec., 2024. (BK 우수국제학술대회)

S. Choi, J. Char, H. Ban, K. Oh, H. Ko, and H. Kim, "Distribution-Shifting: Improved Phase Hologram Processing with Novel Phase Distortion Metric," The 31st IEEE Conference on Virtual Reality and 3D User Interfaces (IEEE VR), Mar., 2024. (BK 우수국제학술대회)

Y. Kim, H. Kwon, H. Lee, S. Cho, and H. Ko, "Deblurring Network for Accurate Facial Landmark Detection," 7th IEEE International Conference on Consumer Electronics-Asia, Oct., 2022

D. Lee, H. Ko, J. Kim, and A. Bovik , "Video Quality Model for Space-Time Resolution Adaptation," 4th IEEE International Conference on Image Processing, Applications and Systems, Dec., 2020.

J. Lee, S. Cho, S. Jeong, H. Kwon, H. Ko , H. Kim, and J. Choi, "Extended End to End optimized Image Compression Method based on a Context Adaptive Entropy Model," IEEE Conference on Computer Vision and Pattern Re cognition (CVPR) Workshops, 2019. (BK 우수국제학술대회)

S. Ki, M. Kim, and H. Ko, “Just-Noticeable-Quantization-Distortion Based Preprocessing for Perceptual Video Coding,” IEEE Visual Communications and Image Processing (VCIP), Dec., 2017.

D. Gwon, A. Baek, H. Ko, J. Kang, and H. Choi, “Fast Intra Mode Decision based on Relative SATD in HEVC,” Electronics, Electrical Engineering, Computer Science (EEECS), Feb., 2017.

A. Baek, D. Gwon, H. Ko, J. Kang, and H. Choi, “QTBT Performance Analysis According to Binary Tree Depth in Joint Exploration Model,” Electronics, Electrical Engineering, Computer Science (EEECS), Feb., 2017.

N. Kim, S. Jeon, H. Shim, B. Jeon, S. Lim, and H. Ko, “Adaptive keypoint-based CU depth decision for HEVC intra coding,” IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), pp. 1-4, 2017.

H. Ko , C. Kim, S. Choi, and C.-C. Jay Kuo, "3D Image Quality Index using SDP based Binocular Perception Model,” IEEE 11th IVMSP Workshop , pp. 14, Jun., 2013.

H. Ko and C.-C. Jay. Kuo, “A New In-Loop Filter for Depth Map Coding in HEVC,” APSIPA ASC, pp. 1-7, Dec., 2012.

H Ko , K. Yoo , J. Seo, and K. Sohn, "Fast intra mode decision us ing inter frame correlation for H.264/AVC," Proc. IEEE International Symposium on Consumer Electronics (ISCE), pp 33, Apr., 2008.

K Yoo, S. Park , H. Ko and K. Sohn, "A High Performance Motion Vector Processor IP Design for H.264/AVC," Proc. IEEE International Symposium on Consumer Electronics (ISCE), pp 17, Apr., 2008.

H. Ko, K. Yoo, and K. Sohn, "Fast intra mode decision for H.264/AVC using inverse tree structure," Proc. International Workshop on Advanced Image Technology (IWAIT), pp. 14, Jan., 2008.

K. Sohn, Y. Kim, H. Ko, and J. Seo , "Image stitch based MVC," Proc. SPIE Optic East , pp 677818-1 ~ 677818-9, Sep., 2007.