Skip to main content

정재용 교수

Jaeyong Chung

연세대학교 시스템반도체공학과 · 컴퓨터과학

연구실 소개

정재용 교수의 연구실은 가상현실(VR) 환경에서의 사용자 경험, 특히 기술적 장애가 인지적 몰입감을 해칠 때 발생하는 '몰입의 단절(Breaks in Presence, BIP)' 현상을 중심으로 연구를 진행하고 있습니다. 또한, 신경망의 효율적 구현을 위한 모델 압축 기법과 뉴로모픽 아키텍처에 최적화된 기계학습 모델 설계에 관한 연구도 함께 수행하고 있습니다. 특히 VR의 실용화를 위한 저비용·고정밀도 신체 동작 추적 기술과 바이오센서 기반의 정밀 항체 분離 기술 등 응용 기술 개발에도 기여하고 있습니다.

몰입 단절가상현실모델 압축뉴로모픽신체 동작 추적

연구 현황

논문 수
101
총 인용 수
834
최근 5년 논문
22
주요 분야
컴퓨터과학

연구 성과 추이

표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.

5개년 연도별 논문 게재 수
22총합
2021
2022
2023
2024
2025
5개년 연도별 피인용 수
169총합
20212022202320242025

주요 논문

15
1
논문|인용수 32·2012
Temporal Presence Variation in Immersive Computer Games
Jaeyong Chung, Henry Gardner
SJR Q1International Journal of Human-Computer Interaction

Increasingly, the sophistication of modern computer-gaming systems is becoming comparable to that of immersive, virtual reality (VR) environments, and the popular VR research topic of “presence” is now being explored in the context of computer games. The explosion of popularity of networked gameplay and the movement of computing infrastructure on to the Internet and the cloud mean that technical anomalies such as network latency, dropouts, and so on, may increasingly disrupt players' experience

Human-Computer InteractionComputer Science
2
논문|인용수 32·2016
Simplifying deep neural networks for neuromorphic architectures
Jaeyong Chung, Taehwan Shin

Deep learning using deep neural networks is taking machine intelligence to the next level in computer vision, speech recognition, natural language processing, etc. Brain-like hardware platforms for the brain-inspired computational models are being studied, but none of such platforms deals with the huge size of practical deep neural networks. This paper presents two techniques, factorization and pruning, that not only compress the models but also maintain the form of the models for the execution

Electrical and Electronic EngineeringEngineering
3
논문|인용수 26·2012
Testability-Driven Statistical Path Selection
Jaeyong Chung, Jinjun Xiong, Vladimir Zolotov, Jacob A. Abraham
SJR Q1IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems

In the face of large-scale process variations, statistical timing methodology has advanced significantly over the last few years, and statistical path selection takes advantage of it in at-speed testing. In deterministic path selection, the separation of path selection and test generation is known to require time consuming iteration between the two processes. This paper shows that in statistical path selection, this is not only the case, but also the quality of results can be severely degraded e

Hardware and ArchitectureComputer Science
4
논문|인용수 20·2002
POSTRACK: a low cost real-time motion tracking system for VR application
Jaeyong Chung, Namgyu Kim, Jounghyun Kim, Chan-Mo Park

One of the obstacles to the use of VR is the expensive, intrusive, cumbersome and brittle nature of the sensors required to detect user's intent. While optical tracking has been regarded as one solution to this problem, the problems of establishing marker correspondence and resolving their occlusions remain. One solution is to simply add hardware, making the tracking system too expensive for general usage, while another, to track human body parts, suffers from the inability to track point featur

Computer Vision and Pattern RecognitionComputer Science
5
논문|인용수 19·2021
Anti-SARS-CoV-2 Nucleoprotein Antibodies Derived from Pig Serum with a Controlled Specificity
정재용, 봉지홍, 김홍래, 박준희, 이창규, 강민정, 김현옥, 변재철

Antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleoprotein (NP) were purified from pig serum through two steps: (1) isolation of anti-NP IgG antibodies using magnetic beads with immobilized human SARS CoV-2 NP and (2) fi ltration of anti-spike protein (SP) IgG antibodies using magnetic beads with immobilized human SARS-CoV SP. The enhanced specificity of the purified antibodies to the NP of SARS-CoV-2 was demonstrated using an immunoassay with anti-NP IgG antib

6
논문|인용수 17·2010
Analysis of Break in Presence During Game Play Using a Linear Mixed Model
Jaeyong Chung
SJR Q2ETRI JournalOA

Breaks in presence (BIP) are those moments during virtual environment (VE) exposure in which participants become aware of their real world setting and their sense of presence in the VE becomes disrupted. In this study, we investigate participants' experience when they encounter technical anomalies during game play. We induced four technical anomalies and compared the BIP responses of a navigation mode game to that of a combat mode game. In our analysis, we applied a linear mixed model (LMM) and

Human-Computer InteractionComputer Science
7
논문|인용수 16·2021
Isolation of Antibodies Against the Spike Protein of SARS-CoV from Pig Serum for Competitive Immunoassay
정재용, 봉지홍, 김태헌, 성정수, 이창규, 강민정, 김현옥, 신현진, 변재철
https://doi.org/10.1007/s13206-021-00033-0

Several endemic corona viruses (eCoVs) have been reported to be the most common etiologic agents for the seasonal common cold and also cause pneumonia. These eCoVs share extensive sequence homology with SARS-CoV-2, and immune responses to eCoVs can cross-react with SARS-CoV-2 antigens. Based on such cross-reactivity of antigens among eCoVs, the IgG antibodies against the spike protein (SP) of severe acute respiratory syndrome coronavirus (SARS-CoV) were isolated from pig serum using magnetic bea

8
논문|인용수 13·2018
DeepRT: predictable deep learning inference for cyber-physical systems
Woochul Kang, Jaeyong Chung
SJR Q2Real-Time Systems
Computer Vision and Pattern RecognitionComputer Science
9
논문|인용수 13·2012
Concurrent Path Selection Algorithm in Statistical Timing Analysis
Jaeyong Chung, Jacob A. Abraham
SJR Q2IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Circuit timing is becoming more and more uncertain under greater process variation as technology scales. Given the fault probability of each timing path and their statistical correlation from a statistical timing framework, the path selection problem for delay faults has a nature similar to the problem of designing a portfolio of stocks or assets or determining the size of bets in gambling to minimize risk. This observation allows us to develop a very different path selection approach from the c

Hardware and ArchitectureComputer Science
10
preprint|인용수 11·2015
INsight: A Neuromorphic Computing System for Evaluation of Large Neural Networks
Jaeyong Chung, Taehwan Shin, Yong-Shin Kang
arXiv (Cornell University)OA

Deep neural networks have been demonstrated impressive results in various cognitive tasks such as object detection and image classification. In order to execute large networks, Von Neumann computers store the large number of weight parameters in external memories, and processing elements are timed-shared, which leads to power-hungry I/O operations and processing bottlenecks. This paper describes a neuromorphic computing system that is designed from the ground up for the energy-efficient evaluati

Electrical and Electronic EngineeringEngineering
11
논문|인용수 11·2012
Path Criticality Computation in Parameterized Statistical Timing Analysis Using a Novel Operator
Jaeyong Chung, Jinjun Xiong, Vladimir Zolotov, Jacob A. Abraham
SJR Q1IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems

This paper presents a method to compute criticality probabilities of paths in parameterized statistical static timing analysis. We partition the set of all the paths into several groups and formulate the path criticality into a joint probability of inequalities. Before evaluating the joint probability directly, we simplify the inequalities through algebraic elimination, handling topological correlation. Our proposed method uses conditional probabilities to obtain the joint probability, and stati

Electrical and Electronic EngineeringEngineering
12
논문|인용수 10·2021
Carry-Propagation-Adder-Factored Gemmini Systolic Array for Machine Learning Acceleration
Kashif Inayat, Jaeyong Chung
SJR Q2ElectronicsOA

Systolic arrays are the primary part of modern deep learning accelerators and are being used widely in real-life applications such as self-driving cars. This paper presents a novel factored systolic array, where the carry propagation adder for accumulation and the rounding logic are extracted out from each processing element, which reduces the area, power and delay of the processing elements substantially. The factoring is performed in the column-wise manner and the cost of the factored logic, p

Hardware and ArchitectureComputer Science
13
논문|인용수 10·2012
A Built-In Repair Analyzer With Optimal Repair Rate for Word-Oriented Memories
Jaeyong Chung, Joon-Sung Park, Jacob A. Abraham
SJR Q2IEEE Transactions on Very Large Scale Integration (VLSI) Systems

This paper presents a built-in self repair analyzer with the optimal repair rate for memory arrays with redundancy. The proposed method requires only a single test, even in the worst case. By performing the must-repair analysis on the fly during the test, it selectively stores fault addresses, and the final analysis to find a solution is performed on the stored fault addresses. To enumerate all possible solutions, existing techniques use depth first search using a stack and a finite-state machin

Hardware and ArchitectureComputer Science
14
논문|인용수 10·2016
Energy-efficient response time management for embedded databases
Woochul Kang, Jaeyong Chung
SJR Q2Real-Time Systems
Hardware and ArchitectureComputer Science
15
논문|인용수 10·2024
One-Step Immunoassay for the Detection of SARS-CoV-2 Nucleocapsid Protein Using Screened Fv-Antibodies
정재용, 성정수, Kim Tae-Hun, Kang Min-Jung, Jose Joachim, 신현진, Pyun Jae-Chul
https://doi.org/10.1007/s13206-024-00151-5

Fv-antibodies against the nucleocapsid protein (NP) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were screened from an Fv-antibody library, and a one-step immunoassay was performed to detect SARS-CoV-2 using real viral samples. The Fv-antibody library was prepared using site-directed mutagenesis of the CDR3 region, which was composed of 11 amino acids. To screen the target Escherichia coli from the Fv-antibody library, the expressed probes [N-terminal domain (NTD) labeled with

대표 연구 분야

Electrical and Electronic EngineeringHardware and ArchitectureComputer Vision and Pattern RecognitionEnvironmental EngineeringHuman-Computer InteractionArtificial Intelligence

정재용 교수의 연구를 Nubint에서 더 깊이 살펴보세요

이 연구실의 논문을 앱에서 열어 AI와 함께 읽고, 핵심을 요약하고, 내 글에 인용하세요.