Dynamical path-planning algorithm of a mobile robot using chaotic neuron model. - Changkyu Choi; Sun-Gi Hong; Jin-Ho Shin; Il-Kwon Jeong; Ju-Jang Lee (IROS (2), 1995)

New skill learning paradigm using various kinds of neurons. - Tae-Dok Eom; Sung-Woo Kim; Changkyu Choi; Ju-Jang Lee (IROS, 1996)

Information processing using chaos with application to mobile robot navigation problems. - Changkyu Choi; Tae-Dok Eom; Sun-Gi Hong; J.-J. Lee (Artif. Life Robotics, 1998)

Chaotic local search algorithm. - Changkyu Choi; Ju-Jang Lee (Artif. Life Robotics, 1998)

Generalized asymmetrical bidirectional associative memory for multiple association. - Tae-Dok Eom; Changkyu Choi; Ju-Jang Lee (Appl. Math. Comput., 2002)

Speech enhancement and recognition using circular microphone array for service robots. - Changkyu Choi; Donggeon Kong; Jaywoo Kim; Seokwon Bang (IROS, 2003)

Adaptive Cross-Channel Interference Cancellation on Blind Source Separation Outputs. - Changkyu Choi; Gil-Jin Jang; Yongbeom Lee; Sang Ryong Kim (ICA, 2004)

Separation of multiple concurrent speeches using audio-visual speaker localization and minimum variance beam-forming. - Changkyu Choi; Donggeon Kong; Hyoung-Ki Lee; Sang Min Yoon (INTERSPEECH, 2004)

Adaptive cross-channel interference cancellation on blind signal separation outputs using source absence/presence detection and spectral subtraction. - Gil-Jin Jang; Changkyu Choi; Yongbeom Lee; Yung-Hwan Oh (INTERSPEECH, 2004)

Voice activity detection using global soft decision with mixture of Gaussian model. - Kiyoung Park; Changkyu Choi; Jeongsu Kim (INTERSPEECH, 2004)

Real-time audio-visual localization of user using microphone array and vision camera. - Changkyu Choi; Donggeon Kong; Sujin Lee; Kiyoung Park; Sun-Gi Hong; Hyoung-Ki Lee; Seokwon Bang; Yongbeom Lee; Sang Ryong Kim (IROS, 2005)

Adaptive Microphone Array System with Two-Stage Adaptation Mode Controller. - Yang-Won Jung; Hong-Goo Kang; Chungyong Lee; Dae Hee Youn; Changkyu Choi; Jaywoo Kim (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Dynamics of tilt-based browsing on mobile devices. - Sung-Jung Cho; Changkyu Choi; Younghoon Sung; Kwanghyeon Lee; Yeun-Bae Kim; Roderick Murray-Smith (CHI Extended Abstracts, 2007)

3D user interface combining gaze and hand gestures for large-scale display. - ByungIn Yoo; Jae-Joon Han; Changkyu Choi; Kwonju Yi; Sungjoo Suh; Dusik Park; Changyeong Kim (CHI Extended Abstracts, 2010)

3D remote interface for smart displays. - ByungIn Yoo; Jae-Joon Han; Changkyu Choi; Hee-seob Ryu; Du-Sik Park; Changyeong Kim (CHI Extended Abstracts, 2011)

High-precision 6-DOF motion tracking architecture with compact low-cost sensors for 3D manipulation. - Hyong-Euk Lee; Sanghyun Kim; Changkyu Choi; Won-Chul Bang; James D. K. Kim; Changyeong Kim (ICCE, 2012)

Mobile LCD device with transparent infrared image sensor panel for touch and hover sensing. - Sungjoo Suh; Kwonju Yi; Changkyu Choi; Dusik Park; Changyeong Kim (ICCE, 2012)

Efficient synthetic refocusing method from multiple coded aperture images for 3D user interaction. - Sungjoo Suh; Changkyu Choi; Dusik Park; Changyeong Kim (Computational Imaging, 2013)

Real-time hand shape recognition by orientation invariant data learning for smart TV. - Jae-Joon Han; Changkyu Choi; ByungIn Yoo; Dusik Park; Changyeong Kim (ICCE, 2013)

A fast motion deblurring based on the motion blur region search for a mobile phone. - Nam-Joon Kim; Sungjoo Suh; Changkyu Choi; Dusik Park; Changyeong Kim (ICCE, 2013)

Real-time 3D human pose recognition from reconstructed volume via voxel classifiers. - ByungIn Yoo; Changkyu Choi; Jae-Joon Han; Chang-Kyo Lee; Wonjun Kim; Sungjoo Suh; Dusik Park; Junmo Kim 002 (Three-Dimensional Image Processing, Measurement (3DIPM), and Applications, 2014)

RoVatar: semi-autonomous robot boxing game by miniature avatars. - ByungIn Yoo; Changkyu Choi; Nam-Joon Kim; Jae-Joon Han; Dusik Park; Junmo Kim 002 (CHI Extended Abstracts, 2014)

Robust finger contact detection with majority quadrant search for interactive tabletop displays. - Nam-Joon Kim; Sungjoo Suh; Changkyu Choi (ICCE, 2014)

Randomized decision bush: Combining global shape parameters and local scalable descriptors for human body parts recognition. - ByungIn Yoo; Wonjun Kim; Jae-Joon Han; Changkyu Choi; Dusik Park; Junmo Kim 002 (ICIP, 2014)

25.3 A 1.35V 5.0Gb/s/pin GDDR5M with 5.4mW standby power and an error-adaptive duty-cycle corrector. - 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; et al. (ISSCC, 2014)

Recognition combined human pose tracking using single depth images. - Wonjun Kim; ByungIn Yoo; Jae-Joon Han; Changkyu Choi (Visual Information Processing and Communication, 2014)

Rotating your face using multi-task deep neural network. - Junho Yim; Heechul Jung; ByungIn Yoo; Changkyu Choi; Du-Sik Park; Junmo Kim 002 (CVPR, 2015)

Discriminative low-rank metric learning for face recognition. - Zhengming Ding; Sungjoo Suh; Jae-Joon Han; Changkyu Choi; Yun Fu 001 (FG, 2015)

A fast multi-view face detector for mobile phone. - Hao Feng; Biao Wang; Chao Zhang; Bing Yu; Wonjun Hwang; Jae-Joon Han; Changkyu Choi; Haitao Wang 006 (ICIP, 2016)

Fingerprint Liveness Detection Using Ensemble of Local Image Quality Assessments. - Wonjun Kim; Sungjoo Suh; Youngsung Kim; Changkyu Choi (Visual Information Processing and Communication, 2016)

Deep generative-contrastive networks for facial expression recognition. - Youngsung Kim; ByungIn Yoo; Youngjun Kwak; Changkyu Choi; Junmo Kim (CoRR, 2017)

Residual Encoder Decoder Network and Adaptive Prior for Face Parsing. - Tianchu Guo; Youngsung Kim; Hui Zhang; Deheng Qian; ByungIn Yoo; Jingtao Xu; Dongqing Zou; Jae-Joon Han; Changkyu Choi (AAAI, 2018)

Joint Training of Low-Precision Neural Network with Quantization Interval Parameters. - Sangil Jung; Changyong Son; Seohyung Lee; JinWoo Son; Youngjun Kwak; Jae-Joon Han; Changkyu Choi (CoRR, 2018)

Deep Facial Age Estimation Using Conditional Multitask Learning With Weak Label Expansion. - ByungIn Yoo; Youngjun Kwak; Youngsung Kim; Changkyu Choi; Junmo Kim 002 (IEEE Signal Process. Lett., 2018)

Learning to Quantize Deep Networks by Optimizing Quantization Intervals With Task Loss. - Sangil Jung; Changyong Son; Seohyung Lee; JinWoo Son; Jae-Joon Han; Youngjun Kwak; Sung Ju Hwang; Changkyu Choi (CVPR, 2019)

Deep Speaker Representation Using Orthogonal Decomposition and Recombination for Speaker Verification. - Insoo Kim; Kyuhong Kim; Jiwhan Kim; Changkyu Choi (ICASSP, 2019)

A Generalized and Robust Method Towards Practical Gaze Estimation on Smart Phone. - Tianchu Guo; Yongchao Liu; Hui Zhang; Xiabing Liu; Youngjun Kwak; ByungIn Yoo; Jae-Joon Han; Changkyu Choi (ICCV Workshops, 2019)

Generative Correlation Discovery Network for Multi-label Learning. - Lichen Wang; Zhengming Ding; Seungju Han 001; Jae-Joon Han; Changkyu Choi; Yun Fu 001 (ICDM, 2019)

Robust Discriminative Metric Learning for Image Representation. - Zhengming Ding; Ming Shao; Wonjun Hwang; Sungjoo Suh; Jae-Joon Han; Changkyu Choi; Yun Fu 001 (IEEE Trans. Circuits Syst. Video Technol., 2019)

DiscFace: Minimum Discrepancy Learning for Deep Face Recognition. - Insoo Kim; Seungju Han 001; Seong-Jin Park; Ji-Won Baek; Jinwoo Shin; Jae-Joon Han; Changkyu Choi (ACCV (5), 2020)

Short-Term Load Forecasting with Dilated Recurrent Attention Networks in Presence of Missing Data. - Changkyu Choi (NLDL, 2020)

RaScaNet: Learning Tiny Models by Raster-Scanning Images. - Jaehyoung Yoo; Dongwook Lee; Changyong Son; Sangil Jung; ByungIn Yoo; Changkyu Choi; Jae-Joon Han; Bohyung Han (CVPR, 2021)

A Novel Sensitivity Metric For Mixed-Precision Quantization With Synthetic Data Generation. - Donghyun Lee; Minkyoung Cho; Seungwon Lee; Joonho Song; Changkyu Choi (ICIP, 2021)

Sparsity-Aware and Re-configurable NPU Architecture for Samsung Flagship Mobile SoC. - 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; et al. (ISCA, 2021)

Data-free mixed-precision quantization using novel sensitivity metric. - Donghyun Lee; Minkyoung Cho; Seungwon Lee; Joonho Song; Changkyu Choi (CoRR, 2021)

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. - Youngwook Kwon; Hyunsu Park; Yoonjae Choi; Jincheol Sim; Jonghyuck Choi; Seungwoo Park; Kyeong-Min Kim; Changkyu Choi; Hae-Kang Jung; Chulwoo Kim (IEEE J. Solid State Circuits, 2023)

Generative Multi-Label Correlation Learning. - Lichen Wang; Zhengming Ding; Kasey Lee; Seungju Han 001; Jae-Joon Han; Changkyu Choi; Yun Fu 001 (ACM Trans. Knowl. Discov. Data, 2023)

ProxyDR: Deep Hyperspherical Metric Learning with Distance Ratio-Based Formulation. - Hyeongji Kim; Changkyu Choi; Michael Kampffmeyer; Terje Berge; Pekka Parviainen; Ketil Malde (ECCV Workshops (17), 2024)

DIB-X: Formulating Explainability Principles for a Self-Explainable Model Through Information Theoretic Learning. - Changkyu Choi; Shujian Yu; Michael Kampffmeyer; Arnt-Børre Salberg; Nils Olav Handegard; Robert Jenssen (ICASSP, 2024)

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. - Yangho Seo; Jihee Choi; Sunki Cho; Hyunwook Han; Wonjong Kim; Gyeongha Ryu; Jungil Ahn; Younga Cho; Sungphil Choi; Seohee Lee; Wooju Lee; Chaehyuk Lee; et al. (ISSCC, 2024)

Addressing Label Shift in Distributed Learning via Entropy Regularization​. - Zhiyuan Wu; Changkyu Choi; Xiangcheng Cao; Volkan Cevher; Ali Ramezani-Kebrya (ICLR, 2025)

Leveraging Foundation Model Adapters to Enable Robust and Semantic Underwater Exploration. - Changkyu Choi; Arangan Subramaniam; Nils Olav Handegard; Ali Ramezani-Kebrya; Robert Jenssen (NAIS, 2025)

DocVXQA: Context-Aware Visual Explanations for Document Question Answering. - Mohamed Ali Souibgui; Changkyu Choi; Andrey Barsky; Kangsoo Jung; Ernest Valveny; Dimosthenis Karatzas (CoRR, 2025)