Publications

Conference Publications

• Maestro: The Analysis-Simulation Integrated Framework for Mixed Reality
  Jingyu Lee, Hyunsoo Kim, Minjae Kim, Byung-Gon Chun, Youngki Lee
  ACM MobiSys, June 2024 (to appear)
• Attention-Propagation Network for Egocentric Heatmap to 3D Pose Lifting,
  Taeho Kang, Youngki Lee,
  CVPR (Highlight), June 2024 (to appear)
• MIRROR: Towards Generalizable On-device Video Virtual Try-on for Mobile Shopping,
  Dongsig Kang, Eunsu Baek, Sungwook Son, Youngki Lee, Taesik Gong, and Hyung-Sin Kim
  ACM UbiComp, September 2024 (PACM IMWUT, December 2023)
• Ego3DPose: Capturing 3D Cues from Binocular Egocentric Views,
  Taeho Kang, Kyungjin Lee, Jinrui Zhang, Youngki Lee
  SIGGRAPH Asia, December 2023
• FarfetchFusion: Towards Fully Mobile Live 3D Telepresence Platform,
  Kyungjin Lee, Juheon Yi, Youngki Lee
  ACM MobiCom, October 2023
• Papez: Resource-efficient Speech Separation with Auditory Working Memory,
  Hyunseok Oh, Juheon Yi, Youngki Lee
  IEEE ICASSP, June 2023
• Mosaic: Extremely Low-resolution RFID Vision for Privacy-preserving Action Recognition,
  Seungwoo Shim, Hyeonho Shin, Myeongkyun Cho, Youngki Lee, Jinwoo Shin, Song Min Kim
  ACM/IEEE IPSN, May 2023
• Bubbleu: Exploring Augmented Reality Game Design with Uncertain AI-based Interaction,
  Minji Kim, Kyungjin Lee, Rajesh Balan, Youngki Lee
  ACM CHI, April 2023
• Band: Coordinated Multi-DNN Inference on Heterogeneous Mobile Processors
  Joo Seong Jeong*, Jingyu Lee*, Donghyun Kim, Changmin Jeon, Changjin Jeong, Youngki Lee, Byung-Gon Chun (*Co-primary)
  ACM MobiSys, June 2022
• FlexPatch: Fast and Accurate Object Detection for On-device High-Resolution Live Video Analytics,
  Kichang Yang, Juheon Yi, Kyungjin Lee, Youngki Lee,
  IEEE INFOCOM, May 2022 
• Captivate! Contextual Language Guidance for Parent-Infant Interaction,
  Taeahn Kwon, Minkyung Jeong, Eon-Suk Ko, Youngki Lee,
  ACM CHI [Best Paper Honorable Mention], April 2022
• VECA: A New Benchmark and Toolkit for General Cognitive Development,
  Kwanyoung Park*, Hyunseok Oh*, Youngki Lee (*Co-primary),
  AAAI (Oral), February 2022 
• Toddler-Guidance Learning: Impacts of Critical Period on Multimodal AI Agents,
  Junseok Park, Kwanyoung Park, Hyunseok Oh, Ganghun Lee, Minsu Lee, Youngki Lee, Byoung-Tak Zhang
  ACM ICMI, October 2021 
• Enabling Real-time Sign Language Translation on Mobile Platforms with On-board Depth Cameras,
  Hyeonjung Park, Youngki Lee, Jeonggil Ko
  ACM UbiComp, October 2021 (published in PACM IMWUT, June 2021)
• Detection of Social Identification in Workgroups from a Passively-sensed WiFi Infrastructure,
  Camellia Zakaria, Youngki Lee, Rajesh Balan
  ACM CSCW, April 2021
• Heimdall: Mobile GPU Coordination Platform for Augmented Reality Applications,
  Juheon Yi, Youngki Lee
  ACM MobiCom, September 2020
• GROOT: A Real-time Streaming System for High-Fidelity Volumetric Videos,
  Kyungjin Lee, Juheon Yi, Youngki Lee, Sunghyun Choi, Young Min Kim
  ACM MobiCom, September 2020
• EagleEye: Wearable Camera-based Person Identification in Crowded Urban Spaces,
  Juheon Yi, Sunghyun Choi, Youngki Lee
  ACM MobiCom, September 2020 
• DETECTIF: Unified Detection & Correction of  IoT Faults in Smart Homes,
  Madhumita Mallick, Archan Misra, Niloy Ganguly, Youngki Lee
  IEEE WoWMoM, August 2020 
• Gym Usage Behavior & Desired Digital Interventions: An Empirical Study,
  Meera Radhakrishnan, Rajesh Balan, Archan Misra, Youngki Lee
  PervasiveHealth, October 2020
• VitaMon: Measuring Heart Rate Variability using a Smartphone Front Camera,
  Sinh Hyun, Rajesh Balan, Jeonggil Ko, Youngki Lee,
  ACM SenSys, November 2019
• SmrtFridge: IoT-based, User Interaction-Driven Food Item and Quantity Sensing,
  Amit Sharma, Archan Misra, Vengateswaran Subramaniam, Youngki Lee,
  ACM SenSys, November 2019
• StressMon: Scalable Detection of Perceived Stress and Depression Using Passive Sensing of Changes in Work Routines and Group Interactions,
  Camellia Zakaria, Rajesh Balan, Youngki Lee
  ACM CSCW, November 2019
• Occlumency: Privacy-Preserving Remote Deep Learning Inference Using SGX,
  Taegyeong Lee, Zhiqi Lin, Saumay Pushp, Caihua Li, Yunxin Liu, Youngki Lee, Fengyuan Xu, Chenren Xu, Lintao Zhang, Junehwa Song,
  ACM MobiCom, October 2019 
• Your Table Can Be an Input Panel: Acoustic-based Device-Free Interaction Recognition,
  Mingshi Chen, Panlong Yang, Jie Xiong, Maotian Zhang, Youngki Lee, Chang Tian, Chaocan Xiang,
  ACM UbiComp, September 2019 (published in PACM IMWUT, March 2019)
• Examining Augmented Virtuality Impairment Simulation for Mobile App Accessibility Design,
  Kenny Choo, Rajesh K. Balan, Youngki Lee
  ACM CHI, May 2019 
• CryptoCurrency Mining on Mobile as an Alternative Monetization Approach,
  Sinh Hyunh, Kenny Choo, Rajesh K. Balan, Youngki Lee,
  ACM HotMobile, February 2019            
• Performance Characterization of Deep Learning Models for Breathing-based Authentication on Resource-Constrained Devices,
  Jagmohan Chauhan, Jathushan Rajasegaran, Suranga Seneviratne, Archan Misra, Aruna Seneviratne, Youngki Lee,
  ACM UbiComp, September 2019 (published in PACM IMWUT, December 2018) 
• Experiences and Challenges with Server-Side WiFi Indoor Localization Using Existing Infrastructure,
  Dheryta Jaisinghani, Rajesh K. Balan, Vinayak Naik, Archan Misra, Youngki Lee
  Mobiquitous, November 2018
• I4S: Capturing Shopper's In-store Interactions,
  Sougata Sen, Archan Misra, Vigneshwaran Subbaraju, Karan Grover, Meera Radhakrishnan, Rajesh K. Balan, Youngki Lee,
  ISWC, October 2018
• When Virtual Reality Meets IoT in the Gym: Enabling Immersive and Interactive Machine-Based Strength Training,
  Fazlay Rabbi, Taiwoo Park, Biyi Fang, Mi Zhang, Youngki Lee,
  ACM UbiComp, October 2018 (published in PACM IMWUT, June 2018)
• EngageMon: Multi-Modal Engagement Sensing for Mobile Games,
  Huynh Nguyen Phan Shin, Seungmin Kim, Jeonggil Ko, Rajesh K. Balan, Youngki Lee,
  ACM UbiComp, October 2018 (published in PACM IMWUT, March 2018)
• Preemptive Gesture Detection & Trajectory Tracking for Wearable-based Interactive Applications,
  Tran Huy Vu, Archan Misra, Quentin Roy, Kenny Tsu Wei Choo, Youngki Lee,
  ACM UbiComp, October 2018 (published in PACM IMWUT, March 2018)
• Empath-D: VR-based Empathetic App Design for Accessibility,
  Wonjung Kim, Kenny Choo, Youngki Lee, Archan Misra, Rajesh K. Balan,
  ACM MobiSys, June 2018
• Annapurna: Building a Real-World Smartwatch-based Automated Food Journal,
  Sougata Sen, Vigneshwaran Subbaraju, Archan Misra, Rajesh K. Balan, Youngki Lee,
  IEEE WoWMoM, June 2018
• Smart Monitoring via Participatory BLE Relaying,
  Meeralakshmi Radhakrishnan, Sougata Sen, Archan Misra, Youngki Lee, Rajesh K. Balan,
  COMSNETS, January 2018
• DeepMon: Mobile GPU-based Deep Learning Framework for Continuous Vision Applications,
  Loc N. Huynh, Youngki Lee, Rajesh K. Balan,
  ACM MobiSys, June 2017
• BreathPrint: Breathing Acoustics-based User Authentication,
  Jagmohan Chauhan, Yining Hu, Suranga Seneviratne, Archan Misra, Aruna Seneviratne, Youngki Lee,
  ACM MobiSys, June 2017
• Follow-My-Lead: A Leader-Follower Approach to Visual Indoor Navigation,
  Quentin Roy, Simon T. Perrault, Shengdong Zhao, Richard C. Davis, Anuroop Pattena Vaniyar, Velko Vechev, Youngki Lee, Archan Misra,
  ACM CHI, May 2017
• Empath-D: Empathetic Design for Accessibility,
  Kenny Tsu Wei Choo, Rajesh K. Balan, Tan Kiat Wee, Jagmohan Chauhan, Archan Misra, Youngki Lee,
  ACM HotMobile, February 2017
• PADA: Power-aware Development Assistant for Mobile Sensing Applications,
  Chulhong Min, Seungchul Lee, Changhun Lee, Youngki Lee, Seungwoo Kang, Seungpyo Choi, Wonjung Kim, Junehwa Song,
  ACM UbiComp, September 2016
• LiveLabs: Building In-Situ Mobile Sensing & Behavioural Experimentation TestBeds,
  Kasthuri Jayarajah, Rajesh K. Balan, Meeralakshmi Radhakrishnan, Archan Misra, Youngki Lee,
  ACM MobiSys, June 2016
• PowerForecaster: Predicting Smartphone Power Impact of Continuous Sensing Applications at Pre-installation Time,
  Chulhong Min, Youngki Lee, Chungkuk Yoo, Seungwoo Kang, Sangwon Choi, Pillsoon Park, Inseok Hwang, Younghyun Ju, Seungpyo Choi, Junehwa Song,
  ACM SenSys, November 2015
• Smartphones & BLE Services: Empirical Insights,
  Meera Radhakrishnan, Archan Misra, Rajesh K. Balan, Youngki Lee,
  IEEE MASS, October 2015
• Need Accurate User Behaviour? Pay Attention to Groups!, 
  Kasthuri Jayarajah, Youngki Lee, Archan Misra, Rajesh K. Balan,
  ACM UbiComp, September 2015
• Sandra Helps You Learn: the More You Walk, the More Battery Your Phone Drains,
  Chulhong Min, Chungkuk Yoo, Inseok Hwang, Seungwoo Kang, Youngki Lee, Seungchul Lee, Pillsoon Park, Changhun Lee, Seungpyo Choi, Junehwa Song,
  ACM UbiComp, September 2015
• GameOn: p2p Gaming on Public Transport,
  Nairan Zhang, Youngki Lee, Meeralakshmi Radhakrishnan, Rajesh K. Balan, 
  ACM MobiSys, May 2015
• QueueVadis: Queuing Analytics Using Smartphones,
  Tadashi Okosi, Yu Lu, Chetna Vig, Youngki Lee, Rajesh K. Balan, Archan Misra, 
  IEEE/ACM IPSN, April 2015 
• GruMon: Fast and Accurate Group Monitoring for Heterogeneous Urban Spaces,
  Rijurekha Sen, Youngki Lee, Kasthuri Jayarajah, Archan Misra, Rajesh K. Balan,
  ACM SenSys, November 2014
• High5: Promoting Interpersonal Hand-to-Hand Touch towards Vibrant Workplace Culture,
  Yuhwan Kim, Seungchul Lee, Inseok Hwang, Hyunho Ro, Youngki Lee, Miri Moon, Junehwa Song,
  ACM UbiComp, September 2014 
• Daily Monitoring of ECG-based Features Using Smartphone-integrated ECG Sensor System,
  Sungjun Kwon, Seungwoo Kang, Youngki Lee, Chungkuk Yoo, Kwangsuk Park,
  IEEE EMBC, August 2014
• Cloud-based Query Evaluation for Energy-Efficient Mobile Sensing,
  Tianli Mo, Sougata Sen, Lipyeow Lim, Archan Misra, Rajesh K. Balan, Youngki Lee,
  IEEE MDM, July 2014
• TalkBetter: Family-driven Mobile Intervention Care for Children with Language Delay.
  Inseok Hwang, Chungkuk Yoo, Chanyou Hwang, Dongsun Yim, Youngki Lee, Chulhong Min, John Kim, Junehwa Song,
  ACM CSCW, February 2014 [Best Paper Winner]
• Sinabro: Opportunistic and Unobtrusive Mobile ECG Monitoring System,
  Seungwoo Kang, Sungjun Kwon, Sangwon Seo, Chungkuk Yoo, Kwangsuk Park, Junehwa Song, Youngki Lee,
  ACM HotMobile, February 2014
• LiveLabs: Building An In-Situ Real-Time Mobile Experimentation Testbed,
  Rajesh K. Balan, Archan Misra, Youngki Lee,
  ACM HotMobile, February 2014
• The Challenges of Continuous Mobile Context Sensing, 
  Rajesh K. Balan, Youngki Lee, Tan Kiat Wee, Archan Misra, 
  COMSNETS, January 2014
• SocioPhone: Everyday Face-to-Face Interaction Monitoring Platform Using Multi-Phone Sensor Fusion, 
  Youngki Lee, Chulhong Min, Chanyou Hwang, Jaeung Lee, Inseok Hwang, Younghyun Ju, Chungkuk Yoo, Miri Moon, Uichin Lee, Junehwa Song,
  ACM MobiSys, June 2013
• SymPhoney: A Coordinated Sensing Flow Execution Engine for Concurrent Mobile Sensing Applications,
  Younghyun Ju, Youngki Lee, Jihyun Yu, Chulhong Min, Insik Shin, Junehwa Song,
  ACM SenSys, November 2012
• CoMon: Cooperative Ambience Monitoring Platform with Continuity and Benefit Awareness, 
  Youngki Lee, Younghyun Ju, Chulhong Min, Seungwoo Kang, Inseok Hwang, Junehwa Song,
  ACM MobiSys, June 2012
• ExerLink: Enabling Pervasive Social Exergames with Heterogeneous Exercise Devices, 
  Taiwoo Park, Inseok Hwang, Uichin Lee, Sunghoon Ivan Lee, Chungkuk Yoo, Youngki Lee, Hyukjae Jang, Sungwon Peter Choe, Souneil Park, and Junehwa Song,
  ACM MobiSys, June 2012
• Leveraging Children's Behavioral Distribution and Singularities in New Interactive Environments: Study in Kindergarten Field Trips,
  Inseok Hwang, HyukJae Jang, Taiwoo Park, Aram Choi, Youngki Lee, Chanyou Hwang, Yanggui Choi, Lama Nachman, Junehwa Song, 
  Pervasive, June 2012
• An Efficient Dataflow Execution Method for Mobile Context Monitoring Applications,
  Younghyun Ju, Chulhong Min, Youngki Lee, Jihyun Yu, Junehwa Song,
  IEEE PerCom, March 2012
• High-Performance Composite Event Monitoring System Supporting Large Numbers of Queries and Sources, 
  Sangjeong Lee, Youngki Lee, Byoungjip Kim, K. Selcuk Candan, Yunseok Rhee, Junehwa Song,
  ACM DEBS, July 2011
• AdNext: A Visit-Pattern-Aware Mobile Advertising System for Urban Commercial Complexes,
  Byoungjip Kim, Jin-Young Ha, SangJeong Lee, Seungwoo Kang, Youngki Lee, Yunseok Rhee, Lama Nachman, and Junehwa Song,
  ACM HotMobile, March 2011
• Design and Implementation of a Middleware for Easy Development and Provision of Stream-based Services, 
  Seungwoo Kang, Youngki Lee, Sunghwan Ihm, Souneil Park, Su-Myeon Kim, Junehwa Song,
  IEEE COMPSAC, July 2010  
• Orchestrator: An Active Resource Orchestration Framework for Mobile Context Monitoring in Sensor-rich Mobile Environments, 
  Seungwoo Kang, Youngki Lee, Chulhong Min, Younghyun Ju, Taiwoo Park, Jinwon Lee, Yunseok Rhee, Junehwa Song,
  IEEE PerCom, March 2010
• SeeMon: Scalable and Energy-efficient Context Monitoring Framework for Sensor-rich Mobile Environments, 
  Seungwoo Kang, Jinwon Lee, Hyukjae Jang, Hyonik Lee, Youngki Lee, Souneil Park, Taiwoo Park, Junehwa Song,
  ACM MobiSys, June 2008
• Measurement and Estimation of Network QoS among Peer Xbox 360 Game Players,
  Youngki Lee, Sharad Agarwal, Chris Butcher, Jitu Padhye, 
  PAM, April 2008
• BMQ-Index: Shared and Incremental Processing of Border Monitoring Queries over Data Streams,
  Jinwon Lee, Youngki Lee, Seungwoo Kang, SangJeong Lee, Hyunju Jin, Byungjip Kim, Junehwa Song, 
  IEEE MDM, May 2006 [Best Paper Winner]

Journal and Magazine Publications

• HiMoDepth: Efficient Training-free High-resolution On-device Depth Perception,
  Jinrui Zhang, Huan Yang, Ju Ren, Deyu Zhang, Bangwen He, Youngki Lee, Ting Cao, Yuanchun Li, Yaoxue Zhang, Yunxin Liu,
  IEEE Transactions on Mobile Computing, July 2023
• Evaluating the LENA system for Korean,
  Margarethe McDonald, Taeahn Kwon, Hyunji Kim, Youngki Lee, Eon-Suk Ko
  Journal of Speech, Language, and Hearing Research, December 2020
• Annapurna: An automated smartwatch-based eating detection and food journaling system, 
  Sougata Sen, S. Vigneshwaran, Archan Misra, Rajesh Balan, Youngki Lee
  Pervasive and Mobile Computing, September 2020
• Towards Interpersonal Assistants: Next-Generation Conversation Agents,
  Inseok Hwang, Youngki Lee, Chungkuk Yoo, Chulhong Min, Dongsun Yun, John Kim,
  IEEE Pervasive Computing, June 2020
• Scalable Power Impact Prediction of Mobile Sensing Applications at Pre-installation Time,
  Chulhong Min, Youngki Lee, Chungkuk Yu, Inseok Hwang, Junehwa Song, Seungwoo Kang,
  IEEE Transactions on Mobile Computing, April 2019
• New Challenges in Display-Saturated Environments, 
  Mateusz Mikusz, Kenny Choo, Rajesh K. Balan, Nigel Davis, Youngki Lee,
  IEEE Pervasive Computing, August 2019
• Finding Small-Bowel Lesions: Challenges in Endoscopy Image-based Learning Systems,
  Jungmo Ahn, Huynh Nguyen Loc, Rajesh K. Balan, Youngki Lee, Jeonggil Ko,
  IEEE Computer, Special Issue on Mobile and Embedded Deep Learning, May 2018
• BreathRNNet: Breathing Based Authentication on Resource-Constrained IoT Devices using RNNs,
  Jagmohan Chauhan, Suranga Seneviratne, Yining Hu, Archan Misra, Aruna Seneviratne, Youngki Lee,
  IEEE Computer, Special Issue on Mobile and Embedded Deep Learning, May 2018
• When Mixed Reality Meets Internet Of Things: Towards the Realization of Ubiquitous Mixed Reality,
  Taiwoo Park, Mi Zhang, Youngki Lee,
  ACM GetMobile, March 2018
• Cloud-based Query Evaluation for Energy-efficient Mobile Sensing,
  Tianli Mo, Lipyeow Lim, Sougata Sen, Archan Misra, Rajesh K. Balan, Youngki Lee,
  Pervasive and Mobile Computing, July 2017
• CoMon+: A Cooperative Context Monitoring System for Multi-Device Personal Sensing Environments, 
  Youngki Lee, Seungwoo Kang, Chulhong Min, Younghyun Ju, Inseok Hwang, Junehwa Song, 
  IEEE Transactions on Mobile Computing, August 2016
• Sinabro: A Smartphone-Integrated Opportunistic Electrocardiogram Monitoring System,
  Sungjun Kwon, Dongseok Lee, Jeehoon Kim, Youngki Lee, Seungwoo Kang, Sangwon Seo, Kwangsuk Park,
  Sensors (Featured Article), March 2016
• PowerForecaster: Predicting Power Impact of Mobile Sensing Applications at Pre-Installation Time
  Chulhong Min, Youngki Lee, Chungkuk Yoo, Seungwoo Kang, Inseok Hwang, Junehwa Song,
  ACM GetMobile, January 2016
• CardioGuard: A Brassiere-based Reliable ECG Monitoring Sensor System for Supporting Daily Smartphone Healthcare Applications,
  Sungjun Kwon, Jeehoon Kim, Seungwoo Kang, Youngki Lee, Hyunjae Baek, Kwangsuk Park, 
  Telemedicine and e-Health, December 2014
• An Active Resource Orchestration Framework for PAN-scale Sensor-rich Environments, 
  Youngki Lee, Chulhong Min, Younghyun Ju, Seungwoo Kang, Yunseok Rhee, Junehwa Song,
  IEEE Transactions on Mobile Computing, March 2014
• Scalable Activity-Travel Pattern Monitoring Framework for Large-scale City Environment, 
  Youngki Lee, SangJeong Lee, Byoungjip Kim, Jungwoo Kim, Yunseok Rhee, Junehwa Song, 
  IEEE Transactions on Mobile Computing, April 2012
• MobiCon: Mobile Context Monitoring Platform, 
  Youngki Lee, S.S. Iyengar, Chulhong Min, Younghyun Ju, Taiwoo Park, Jinwon Lee, Yunseok Rhee, and Junehwa Song, 
  Communications of the ACM, March 2012
• Mobiiscape: Middleware Support for Scalable Mobility Pattern Monitoring of Moving Objects in a Large-Scale City,
  Byoungjip Kim, SangJeong Lee, Youngki Lee, Inseok Hwang, Yunseok Rhee, Junehwa Song,
  Journal of Systems and Software, Volume 84, Issue 11, 2011
• A Scalable and Energy-Efficient Context Monitoring Framework for Mobile Personal Sensor Networks, 
  Seungwoo Kang, Jinwon Lee, Hyukjae Jang, Youngki Lee, Souneil Park, Junehwa Song,
  IEEE Transactions on Mobile Computing, Volume 9, No. 5, 2010
• BMQ-Processor: A High-Performance Border Crossing Event Detection Framework for Large-scale Monitoring Applications, 
  Jinwon Lee, Seungwoo Kang, Youngki Lee, SangJeong Lee, Junehwa Song,
  IEEE Transactions on Knowledge and Data Engineering, 21(2):234-252, 2009

Workshop Publications

• Simultaneous Sporadic Sensor Anomaly Detection for Smart Homes,
  Hyunwoo Jung, Wootack Kim, Hyuna Seo, Youngki Lee,
  WearSys (in conjunction with SenSys), November 2023
• On the Importance of Critical Period in Multi-stage Reinforcement Learning,
  Junseok Park, Inwoo Hwang, Min Whoo Lee, Hyunseok Oh, Minsu Lee, Youngki Lee, Byoung-Tak Zhang,
  ICML 2022 Workshop on Complex Feedback in Online Learning, July 2022
• Fullproof: Towards the Detection of Impostor Syndrome Using Smartphone Sensors,
  Jaewon Kim, Yuri Kim, Yuna Jeong, Youngki Lee
  International Workshop on Mental Health and Well-Being (in conjunction with UbiComp), September 2021
• Learning Task-agnostic Representation via Toddler-inspired Learning,
  Kwanyoung Park, Junseok Park, Hyunseok Oh, Byoung-Tak Zhang, Youngki Lee,
  NeurIPS 2020 Workshop on BabyMind, November 2020
• Can Bullying Detection Systems Help in School Violence Scenarios? A Teachers’ Perspective,
  Jaeyoung Kim, Thanh Dung Ho, Jihwan Kim, Youngki Lee, and Jinwook Seo,
  ACM CHI EA, April 2020
• Towards Machine Learning with Zero Real-World Data,
  Cholmin Kang, Hyunwoo Jung, Youngki Lee
  WearSys (in conjunction with MobiSys), June 2019  [Best Paper Winner]
• Exploring Image Reconstruction Attack in Deep Learning Computation Offloading,
  Hyunseok Oh, Youngki Lee,
  International Workshop on Embedded and Mobile Deep Learning (in conjunction with MobiSys), June 2019
• Exploratory Analysis of Individuals Mobility Patterns and Experienced Conflicts in Workgroups,
  Camellia Zakaria, Youngki Lee, Rajesh K. Balan, Kenneth Goh
  ACM Workshop on Mobile Systems for Computational Social Science (in conjunction with MobiSys), June 2019 
• Filter-Based Pruning Method for Deep Convolutional Neural Network,
  Huynh Nguyen Loc, Youngki Lee, Rajesh K. Balan,
  International Workshop on Embedded and Mobile Deep Learning (in conjunction with MobiSys), June 2018
• AudioSense: Sound-Based Shopper Behavior Analysis System,
  
• Amit Sharma, Youngki Lee, 


• International Workshop on Ubiquitous Mobile Instrumentation (in conjunction with UbiComp), September 2017
• Towards Unobtrusive Mental Well-Being Monitoring for Independent-Living Elderly,
  Sinh Huynh, Hwee Pink Tan, Youngki Lee,
  Physical Analytics Workshop (in conjunction with MobiSys), June 2017
• Experiences in Building a Real-World Eating Recogniser,
  Sougata Sen, Vigneshwaran Subbaraju, Archan Misra, Rajesh K. Balan, Youngki Lee,
  Physical Analytics Workshop (in conjunction with MobiSys), June 2017
• DeepSense: A GPU-based Deep Convolutional Neural Network Framework on Commodity Mobile Devices,
  Huynh Nguyen Loc, Rajesh K. Balan, Youngki Lee,
  WearSys (in conjunction with MobiSys), June 2016
• Jasper: Sensing Gamers' Emotions Using Physiological Sensors,
  Sinh Huynh, Youngki Lee, Taiwoo Park, Rajesh K. Balan,
  MobiGames (in conjunction with MobiSys), June 2016
• Small Scale Deployment of Seat Occupancy Detectors,
  Nguyen Huy Hoang Huy, Gihan Hettiarachchi, Youngki Lee, Rajesh K. Balan,
  Physical Analytics Workshop (in conjunction with MobiSys), June 2016
• MAGI: Enabling Multi-Device Gestural Applications,
  Vu H. Tran, Kenny T. W. Choo, Youngki Lee, Richard C. Davis, Archan Misra,
  WristSense (in conjunction with PerCom), March 2016
• LightSense: Exploiting Smart Bulbs for Practical Multimodal Localization,
  Huynh Nguyen, Archan Misra, Youngki Lee,
  PerCom WIP Track, March 2016
• Real-time Detection of Seat Occupancy & Hogging,
  Nguyen Huy Hoang Huy, Nakul Gulati, Youngki Lee, Rajesh K. Balan,
  IoT-App (in conjunction with SenSys), November 2015
• Matchmaking Game Players on Public Transport,
  Nairan Zhang, Youngki Lee, Rajesh K. Balan,
  MobiGames (in conjunction with MobiSys), May 2015
• The Case for Smartwatch-based Diet Monitoring,
  Sougata Sen, Vigneshwaran Subbaraju, Archan Misra, Rajesh K. Balan and Youngki Lee,
  WristSense (in conjunction with PerCom), March 2015 [Best Paper Winner]
• Uncovering Embarrassing Moments in In-situ Exposure of Incoming Mobile Messages,
  Chulhong Min, Saumay Pushp, Seungchul Lee, Inseok Hwang, Youngki Lee, Seungwoo Kang, Junehawa Song,
  ACM MCSS (in conjunction with UbiComp), September 2014 
• The Case for Human-Centric Personal Analytics, 
  Youngki Lee, Rajesh K. Balan, 
  Physical Analytics Workshop (in conjunction with MobiSys), June 2014
• Toward a Mobile Platform for Pervasive Games,
  Youngki Lee*, Inseok Hwang*, Taiwoo Park*, Junehwa Song, (*The first three authors are co-lead authors.)
  MobiGames (in conjunction with SIGCOMM), August 2012 
• Towards Trajectory-Based Experience Sharing in a City, 
  Byoungjip Kim, Youngki Lee, SangJeong Lee, Yunseok Rhee, and Junehwa Song,
  ACM SIGSPATIAL Workshop on LBSN  (in conjunction with GIS), November 2011
• BCE-Processor: Boost Up Event Processing for Large-Scale Sensor-Rich Ubiquitous Environment,
  Jinwon Lee, Youngki Lee, Seungwoo Kang, SangJeong Lee, Yunseok Rhee, Junehwa Song, 
  ACM DEBS WIP Track, July 2008

Thesis

• Cooperative Context Monitoring Platform for Life-Immersive Sensing Applications,
  Youngki Lee,
  Ph.D. Thesis, Department of Computer Science, KAIST, Korea, Dec. 2012.
  [Outstanding Ph.D. Thesis Award in KAIST Computer Science Department]  

Other Publications: Demos, Posters, Videos

• Demo: DeepMon: Building Mobile GPU Deep Learning Models  for Continuous Vision Applications,
  Loc N. Huynh, Youngki Lee, Rajesh K. Balan,
  ACM MobiSys, June 2017
• Demo: Sensing Gamers' Emotions Using Physiological Sensors,
  Sinh Huynh, Rajesh K. Balan, Youngki Lee,
  ACM MobiSys, June 2016
• Demo: GPU-based Image Recognition and Object Detection on Commodity Mobile Devices,
  Huynh Nguyen Loc, Rajesh K. Balan, Youngki Lee,
  ACM MobiSys, June 2016
• Demo: Sound Localization using Smartphone,
  Amit Sharma, Youngki Lee,
  ACM MobiSys, June 2016
• Demo: Drumming Application Using Commodity Wearable Devices,
  Bharat Dwivedi, Archan Misra, Youngki Lee,
  ACM MobiSys, June 2016
• Demo: Smartwatch based Food Diary & Eating Analytics,Sougata Sen, Vigneshwaran Subbaraju, Archan Misra, Youngki Lee, Rajesh K. Balan,
  ACM MobiSys, June 2016
• Demo: Towards Immersive and Interactive Gym Exercises,
  Fazlay Rabbi, Taiwoo Park, Biyi Fang, Mi Zhang, Youngki Lee, Rajiv Ranganathan,
  ACM MobiSys, June 2016
• Demo: Towards Recognition of Rich Non-Negative Emotions Using Daily Wearable Devices,
  Sinh Huynh, Rajesh K. Balan, Youngki Lee,
  ACM SenSys, November 2015
• Demo: Real-time Detection for Multiple Occupancy and Near Real-time Hogging Detection,
  Nguyen Huy Hoang Huy, Rajesh K. Balan, Youngki Lee,
  ACM SenSys, November 2015
• Demo: User Support for Power Management of Continuous Sensing Applications,
  Chulhong Min, Chungkuk Yoo, Sangwon Choi, Pillsoon Park, Seungchul Lee, Changhun Lee, Seungpyo Choi, Seungwoo Kang, Youngki Lee, Inseok Hwang, Younghyun Ju, Junehwa Song, 
  ACM SenSys, November 2015
• Poster: Power-Efficient Context Sensing Using Mobile GPUs,
  Huynh Nguyen Loc, Rajesh K. Balan, Youngki Lee,
  ACM UbiComp, September 2015
• Demo-Group Analytics and Insights for Public Spaces,
  Kasthuri Jayarajah, Rijurekha Sen, Youngki Lee, Shriguru Nayak, Archan Misra Rajesh K. Balan,
  ACM SenSys, November 2014
• Demo- QueueVadis: Queuing Analytics using Smartphones,
  Tadashi Okoshi, Yu Lu, Youngki Lee, Rajesh K. Balan, and Archan Misra,
  ACM HotMobile, February 2014
• Demo- GruMon: Fast and Accurate Group Monitoring for Heterogeneous Urban Spaces,
  Rijurekha Sen, Youngki Lee, Kasthuri Jayarajah, Archan Misra, Rajesh K. Balan,
  ACM HotMobile, February 2014
• Demo- WiFi-based Indoor Localization is Not Easy,
  Luong Trung Tuan, Youngki Lee, Archan Misra, Xiaonan Guo and Rajesh K. Balan,
  ACM HotMobile, February 2014
• Video- TalkBetter: Mobile Intervention Service to Support Family-driven Effort for Children with Language Delay,
  Inseok Hwang, Chungkuk Yoo, Chanyou Hwang, Dongsun Ihm, Youngki Lee, Chulhong Min, John Kim, Junehwa Song,
  ACM CSCW, February 2014
• Demo- SocioPhone: Everyday Face-to-Face Interaction Monitoring Platform Using Multi-Phone Sensor Fusion,
  Youngki Lee, Chulhong Min, Chanyou Hwang, Jaeung Lee, Inseok Hwang, Younghyun Ju, Chungkuk Yoo, Miri Moon, Uichin Lee, Junehwa Song,
  ACM MobiSys, June 2013
• Demo: Bringing In-situ Social Awareness to Mobile Systems: Everyday Interaction Monitoring and Its Applications,
  Chulhong Min, Chanyou Hwang, Taiwoo Park, Yuhwan Kim, Uichin Lee, Inseok Hwang, Chungkuk Yoo, Changhoon Lee, Younghyun Ju, Junehwa Song, Jaeung Lee, Miri Moon, Haechan Lee, Youngki Lee,
ACM HotMobile, February 2013 [Best Demo Award]
• Poster: Towards Crowd-aware Sensing Platform in Metropolitan Environments,
  Saumay Pushp, Chulhong Min, Youngki Lee, Junehwa Song,
  ACM SenSys, November 2012
• Poster: Towards Mobile GPU-Accelerated Context Processing for Continuous Sensing Aplications on Smartphones,
  Chulhong Min, Inseok Hwang, SangJeong Lee, Youngki Lee, Junehwa Song,
  ACM MobiSys, June 2012
• Demo: SenseTogether- Cooperative Ambience Monitoring Platform with Continuity and Benefit Awareness,
  Youngki Lee, Younghyun Ju, Chulhong Min, Seungwoo Kang, Inseok Hwang, Junehwa Song,
  ACM MobiSys, June 2012
• Demo: ExerLink: Enabling Pervasive Social Exergames with Heterogeneous Exercise Devices,
  Taiwoo Park, Inseok Hwang, Uichin Lee, Sunghoon Ivan Lee, Chungkuk Yoo, Youngki Lee, Hyukjae Jang, Sungwon Peter Choe, Souneil Park, and Junehwa Song,
  ACM MobiSys, June 2012 [Best Demo Award]
• MobiCon: Mobile Context Monitoring Platform - Incorporating Context-Awareness into Smartphone-centric Personal Sensor Networks,
  Youngki Lee, Younghyun Ju, Chulhong Min, Jihyun Yu, Junehwa Song,
  IEEE SECON, June 2012
• Demo: CoMon - Resource-aware Cooperative Context Monitoring System for Smartphone-centric Sensor-rich PANs,
  Youngki Lee, Younghyun Ju, Chulhong Min, Seungwoo Kang, Yunseok Rhee, Junehwa Song,
  ACM MobiSys, June 2011