Changkyu Choi

57 papers A* 8A 6B 4C 5Misc 2Journal 15Unranked 17
YearRankTypeTitle / Venue / Authors
2025 J jnl
Addressing Label Shift in Distributed Learning via Entropy Regularization.
CoRR
Zhiyuan Wu, Changkyu Choi, Xiangcheng Cao, Volkan Cevher, Ali Ramezani-Kebrya
2025 A* conf
Addressing Label Shift in Distributed Learning via Entropy Regularization​.
ICLR
Zhiyuan Wu, Changkyu Choi, Xiangcheng Cao, Volkan Cevher, Ali Ramezani-Kebrya
2025 J jnl
Differentiable Hierarchical Visual Tokenization.
CoRR
Marius Aasan, Martine Hjelkrem-Tan, Nico Catalano, Changkyu Choi, Adín Ramírez Rivera
2025 A* conf
DocVXQA: Context-Aware Visual Explanations for Document Question Answering.
ICML
Mohamed Ali Souibgui, Changkyu Choi, Andrey Barsky, Kangsoo Jung, Ernest Valveny, Dimosthenis Karatzas
2025 J jnl
DocVXQA: Context-Aware Visual Explanations for Document Question Answering.
CoRR
Mohamed Ali Souibgui, Changkyu Choi, Andrey Barsky, Kangsoo Jung, Ernest Valveny, Dimosthenis Karatzas
2025 — conf
Leveraging Foundation Model Adapters to Enable Robust and Semantic Underwater Exploration.
NAIS
Changkyu Choi, Arangan Subramaniam, Nils Olav Handegard, Ali Ramezani-Kebrya, Robert Jenssen
2024 — conf
13.8 A 1a-nm 1.05V 10.5Gb/s/pin 16Gb LPDDR5 Turbo DRAM with WCK Correction Strategy, a Voltage-Offset-Calibrated Receiver and Parasitic Capacitance Reduction.
ISSCC
Yangho Seo, Jihee Choi, Sunki Cho, Hyunwook Han, Wonjong Kim, Gyeongha Ryu, Jungil Ahn, Younga Cho, Sungphil Choi, Seohee Lee, Wooju Lee, Chaehyuk Lee, Kiup Kim, Seongseop Lee, Sangbeom Park, Minjun Choi, Sungwoo Lee, Mino Kim, Taekyun Shin, Hyeongsoo Jeong, Hyunseung Kim, Houk Song, Yunsuk Hong, Seokju Yoon, Giwook Park, Hokeun You, Changkyu Choi, Hae-Kang Jung, Joohwan Cho, Jonghwan Kim
2024 Misc conf
DIB-X: Formulating Explainability Principles for a Self-Explainable Model Through Information Theoretic Learning.
ICASSP
Changkyu Choi, Shujian Yu, Michael Kampffmeyer, Arnt-Børre Salberg, Nils Olav Handegard, Robert Jenssen
2024 — conf
ProxyDR: Deep Hyperspherical Metric Learning with Distance Ratio-Based Formulation.
ECCV Workshops (17)
Hyeongji Kim, Changkyu Choi, Michael Kampffmeyer, Terje Berge, Pekka Parviainen, Ketil Malde
2023 J jnl
A 33-Gb/s/Pin 1.09-pJ/Bit Single-Ended PAM-3 Transceiver With Ground-Referenced Signaling and Time-Domain Decision Technique for Multi-Chip Module Memory Interfaces.
IEEE J. Solid State Circuits
Youngwook Kwon, Hyunsu Park, Yoonjae Choi, Jincheol Sim, Jonghyuck Choi, Seungwoo Park, Kyeong-Min Kim, Changkyu Choi, Hae-Kang Jung, Chulwoo Kim
2023 J jnl
Generative Multi-Label Correlation Learning.
ACM Trans. Knowl. Discov. Data
Lichen Wang, Zhengming Ding, Kasey Lee, Seungju Han, Jae-Joon Han, Changkyu Choi, Yun Fu
2021 B conf
A Novel Sensitivity Metric For Mixed-Precision Quantization With Synthetic Data Generation.
ICIP
Donghyun Lee, Minkyoung Cho, Seungwon Lee, Joonho Song, Changkyu Choi
2021 J jnl
Data-free mixed-precision quantization using novel sensitivity metric.
CoRR
Donghyun Lee, Minkyoung Cho, Seungwon Lee, Joonho Song, Changkyu Choi
2021 A* conf
RaScaNet: Learning Tiny Models by Raster-Scanning Images.
CVPR
Jaehyoung Yoo, Dongwook Lee, Changyong Son, Sangil Jung, ByungIn Yoo, Changkyu Choi, Jae-Joon Han, Bohyung Han
2021 A* conf
Sparsity-Aware and Re-configurable NPU Architecture for Samsung Flagship Mobile SoC.
ISCA
Jun-Woo Jang, Sehwan Lee, Dongyoung Kim, Hyunsun Park, Ali Shafiee Ardestani, Yeongjae Choi, Channoh Kim, Yoojin Kim, Hyeongseok Yu, Hamzah Abdel-Aziz, Jun-Seok Park, Heonsoo Lee, Dongwoo Lee, Myeong Woo Kim, Hanwoong Jung, Heewoo Nam, Dongguen Lim, Seungwon Lee, Joon-Ho Song, Suknam Kwon, Joseph Hassoun, Sukhwan Lim, Changkyu Choi
2020 — conf
DiscFace: Minimum Discrepancy Learning for Deep Face Recognition.
ACCV (5)
Insoo Kim, Seungju Han, Seong-Jin Park, Ji-Won Baek, Jinwoo Shin, Jae-Joon Han, Changkyu Choi
2020 — conf
Short-Term Load Forecasting with Dilated Recurrent Attention Networks in Presence of Missing Data.
NLDL
Changkyu Choi
2019 — conf
A Generalized and Robust Method Towards Practical Gaze Estimation on Smart Phone.
ICCV Workshops
Tianchu Guo, Yongchao Liu, Hui Zhang, Xiabing Liu, Youngjun Kwak, ByungIn Yoo, Jae-Joon Han, Changkyu Choi
2019 J jnl
A Generalized and Robust Method Towards Practical Gaze Estimation on Smart Phone.
CoRR
Tianchu Guo, Yongchao Liu, Hui Zhang, Xiabing Liu, Youngjun Kwak, ByungIn Yoo, Jae-Joon Han, Changkyu Choi
2019 Misc conf
Deep Speaker Representation Using Orthogonal Decomposition and Recombination for Speaker Verification.
ICASSP
Insoo Kim, Kyuhong Kim, Jiwhan Kim, Changkyu Choi
2019 A* conf
Generative Correlation Discovery Network for Multi-label Learning.
ICDM
Lichen Wang, Zhengming Ding, Seungju Han, Jae-Joon Han, Changkyu Choi, Yun Fu
2019 A* conf
Learning to Quantize Deep Networks by Optimizing Quantization Intervals With Task Loss.
CVPR
Sangil Jung, Changyong Son, Seohyung Lee, JinWoo Son, Jae-Joon Han, Youngjun Kwak, Sung Ju Hwang, Changkyu Choi
2019 J jnl
Robust Discriminative Metric Learning for Image Representation.
IEEE Trans. Circuits Syst. Video Technol.
Zhengming Ding, Ming Shao, Wonjun Hwang, Sungjoo Suh, Jae-Joon Han, Changkyu Choi, Yun Fu
2018 J jnl
Deep Facial Age Estimation Using Conditional Multitask Learning With Weak Label Expansion.
IEEE Signal Process. Lett.
ByungIn Yoo, Youngjun Kwak, Youngsung Kim, Changkyu Choi, Junmo Kim
2018 J jnl
Joint Training of Low-Precision Neural Network with Quantization Interval Parameters.
CoRR
Sangil Jung, Changyong Son, Seohyung Lee, JinWoo Son, Youngjun Kwak, Jae-Joon Han, Changkyu Choi
2018 A* conf
Residual Encoder Decoder Network and Adaptive Prior for Face Parsing.
AAAI
Tianchu Guo, Youngsung Kim, Hui Zhang, Deheng Qian, ByungIn Yoo, Jingtao Xu, Dongqing Zou, Jae-Joon Han, Changkyu Choi
2017 J jnl
Deep generative-contrastive networks for facial expression recognition.
CoRR
Youngsung Kim, ByungIn Yoo, Youngjun Kwak, Changkyu Choi, Junmo Kim
2016 B conf
A fast multi-view face detector for mobile phone.
ICIP
Hao Feng, Biao Wang, Chao Zhang, Bing Yu, Wonjun Hwang, Jae-Joon Han, Changkyu Choi, Haitao Wang
2016 — conf
Fingerprint Liveness Detection Using Ensemble of Local Image Quality Assessments.
Visual Information Processing and Communication
Wonjun Kim, Sungjoo Suh, Youngsung Kim, Changkyu Choi
2015 B conf
Discriminative low-rank metric learning for face recognition.
FG
Zhengming Ding, Sungjoo Suh, Jae-Joon Han, Changkyu Choi, Yun Fu
2015 A* conf
Rotating your face using multi-task deep neural network.
CVPR
Junho Yim, Heechul Jung, ByungIn Yoo, Changkyu Choi, Du-Sik Park, Junmo Kim
2014 — conf
25.3 A 1.35V 5.0Gb/s/pin GDDR5M with 5.4mW standby power and an error-adaptive duty-cycle corrector.
ISSCC
Hyun-Woo Lee, Junyoung Song, Sangah Hyun, Seunggeun Baek, Yuri Lim, Jungwan Lee, Minsu Park, Haerang Choi, Changkyu Choi, Jin-Youp Cha, Jaeil Kim, Hoon Choi, Seung-Wook Kwack, Yonggu Kang, Jongsam Kim, Junghoon Park, Jonghwan Kim, Jin-Hee Cho, Chulwoo Kim, Yunsaing Kim, Jaejin Lee, Byong-Tae Chung, Sung-Joo Hong
2014 B conf
Randomized decision bush: Combining global shape parameters and local scalable descriptors for human body parts recognition.
ICIP
ByungIn Yoo, Wonjun Kim, Jae-Joon Han, Changkyu Choi, Dusik Park, Junmo Kim
2014 — conf
Real-time 3D human pose recognition from reconstructed volume via voxel classifiers.
Three-Dimensional Image Processing, Measurement (3DIPM), and Applications
ByungIn Yoo, Changkyu Choi, Jae-Joon Han, Chang-Kyo Lee, Wonjun Kim, Sungjoo Suh, Dusik Park, Junmo Kim
2014 — conf
Recognition combined human pose tracking using single depth images.
Visual Information Processing and Communication
Wonjun Kim, ByungIn Yoo, Jae-Joon Han, Changkyu Choi
2014 — conf
RoVatar: semi-autonomous robot boxing game by miniature avatars.
CHI Extended Abstracts
ByungIn Yoo, Changkyu Choi, Nam-Joon Kim, Jae-Joon Han, Dusik Park, Junmo Kim
2014 C conf
Robust finger contact detection with majority quadrant search for interactive tabletop displays.
ICCE
Nam-Joon Kim, Sungjoo Suh, Changkyu Choi
2013 C conf
A fast motion deblurring based on the motion blur region search for a mobile phone.
ICCE
Nam-Joon Kim, Sungjoo Suh, Changkyu Choi, Dusik Park, Changyeong Kim
2013 — conf
Efficient synthetic refocusing method from multiple coded aperture images for 3D user interaction.
Computational Imaging
Sungjoo Suh, Changkyu Choi, Dusik Park, Changyeong Kim
2013 C conf
Real-time hand shape recognition by orientation invariant data learning for smart TV.
ICCE
Jae-Joon Han, Changkyu Choi, ByungIn Yoo, Dusik Park, Changyeong Kim
2012 C conf
High-precision 6-DOF motion tracking architecture with compact low-cost sensors for 3D manipulation.
ICCE
Hyong-Euk Lee, Sanghyun Kim, Changkyu Choi, Won-Chul Bang, James D. K. Kim, Changyeong Kim
2012 C conf
Mobile LCD device with transparent infrared image sensor panel for touch and hover sensing.
ICCE
Sungjoo Suh, Kwonju Yi, Changkyu Choi, Dusik Park, Changyeong Kim
2011 — conf
3D remote interface for smart displays.
CHI Extended Abstracts
ByungIn Yoo, Jae-Joon Han, Changkyu Choi, Hee-Seob Ryu, Du-Sik Park, Changyeong Kim
2010 — conf
3D user interface combining gaze and hand gestures for large-scale display.
CHI Extended Abstracts
ByungIn Yoo, Jae-Joon Han, Changkyu Choi, Kwonju Yi, Sungjoo Suh, Dusik Park, Changyeong Kim
2007 — conf
Dynamics of tilt-based browsing on mobile devices.
CHI Extended Abstracts
Sung-Jung Cho, Changkyu Choi, Younghoon Sung, Kwanghyeon Lee, Yeun-Bae Kim, Roderick Murray-Smith
2005 J jnl
Adaptive Microphone Array System with Two-Stage Adaptation Mode Controller.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yang-Won Jung, Hong-Goo Kang, Chungyong Lee, Dae Hee Youn, Changkyu Choi, Jaywoo Kim
2005 A conf
Real-time audio-visual localization of user using microphone array and vision camera.
IROS
Changkyu Choi, Donggeon Kong, Sujin Lee, Kiyoung Park, Sun-Gi Hong, Hyoung-Ki Lee, Seokwon Bang, Yongbeom Lee, Sang Ryong Kim
2004 — conf
Adaptive Cross-Channel Interference Cancellation on Blind Source Separation Outputs.
ICA
Changkyu Choi, Gil-Jin Jang, Yongbeom Lee, Sang Ryong Kim
2004 A conf
Adaptive cross-channel interference cancellation on blind signal separation outputs using source absence/presence detection and spectral subtraction.
INTERSPEECH
Gil-Jin Jang, Changkyu Choi, Yongbeom Lee, Yung-Hwan Oh
2004 A conf
Separation of multiple concurrent speeches using audio-visual speaker localization and minimum variance beam-forming.
INTERSPEECH
Changkyu Choi, Donggeon Kong, Hyoung-Ki Lee, Sang Min Yoon
2004 A conf
Voice activity detection using global soft decision with mixture of Gaussian model.
INTERSPEECH
Kiyoung Park, Changkyu Choi, Jeongsu Kim
2003 A conf
Speech enhancement and recognition using circular microphone array for service robots.
IROS
Changkyu Choi, Donggeon Kong, Jaywoo Kim, Seokwon Bang
2002 J jnl
Generalized asymmetrical bidirectional associative memory for multiple association.
Appl. Math. Comput.
Tae-Dok Eom, Changkyu Choi, Ju-Jang Lee
1998 J jnl
Chaotic local search algorithm.
Artif. Life Robotics
Changkyu Choi, Ju-Jang Lee
1998 J jnl
Information processing using chaos with application to mobile robot navigation problems.
Artif. Life Robotics
Changkyu Choi, Tae-Dok Eom, Sun-Gi Hong, J.-J. Lee
1996 A conf
New skill learning paradigm using various kinds of neurons.
IROS
Tae-Dok Eom, Sung-Woo Kim, Changkyu Choi, Ju-Jang Lee
1995 — conf
Dynamical path-planning algorithm of a mobile robot using chaotic neuron model.
IROS (2)
Changkyu Choi, Sun-Gi Hong, Jin-Ho Shin, Il-Kwon Jeong, Ju-Jang Lee