International Peer-Reviewed Conferences/Workshops

• Jinhyo Jung, Hwisoo So, Woobin Ko, Sumedh Shridhar Joshi, Yebon Kim, Yohan Ko, Aviral Shrivastava and Kyoungwoo Lee. Maintaining Sanity: Algorithm-based comprehensive fault tolerance for CNNs. Design Automation Conference (DAC).   June 2024. (Acceptance rate : 23%)

• Yunhwan Lee, Yeonghun Kwon, Soyeong Park, Daehoon Son, Yebon Kim, Hyojun Lee, Yohan Ko, Jongsung Kim, Jongbae Kim. Physical human factor for the development of universal XR platform to build a metaverse supporting digital inclusive leisure & culture. International Conference on Applied Human Factors and Ergonomics (AHFE). December 2023.

• Yohan Ko, Jinhyo Jung, Hwisoo So, Kyoungwoo Lee, Aviral Shrivastava. Comprehensive failure analysis against soft errors from hardware and software perspectives. IEEE International Conference on Computer Design (ICCD). October 2021.  [Video]  (Acceptance rate: 85/246 = 34.6%)

• Hwisoo So, Moslem Didehban, Yohan Ko, Aviral Shrivastava, Kyoungwoo Lee. EXPERT: Effective and flexible error protection by redundant multithreading. Design, Automation, and Test in Europe (DATE). March 2018.

• Jonghoon Shin, Hyunchoong Kim, Dayoung Lee, Yohan Ko, Kyoungwoo Lee, Seong-il Hahm, TaeJun Kwon. Enhanced indoor localization in home environments using appearance frequency information. IEEE International Conference on Systems, Man, and Cybernetics (SMC). October 2017.

• Yohan Ko. Comprehensive reliability evaluation for dependable embedded systems. SIGDA PhD Forum at DAC. June 2017.

• Yohan Ko, Kyoungwoo Lee. Multi-level cache vulnerability estimation: The first step to protect memory. IEEE International Conference on Systems, Man, and Cybernetics (SMC). October 2016.

• Hyunchoong Kim, Jonghoon Shin, Soohwan Kim, Yohan Ko, Kyoungwoo Lee, Hojung Cha, Seong-il Hahm, TaeJun Kwon. Collaborative classification for daily activity recognition with a smartwatch. IEEE International Conference on Systems, Man, and Cybernetics (SMC). October 2016.

• Karthik Tanikella, Yohan Ko, Reiley Jeyapaul, Kyoungwoo Lee, Aviral Shrivastava. gemV: A validated toolset for the early exploration of system reliability. IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP). July 2016. (Acceptance rate: 31/85 = 36.5%)

• Yohan Ko, Reiley Jeyapaul, Youngbin Kim, Kyoungwoo Lee, Aviral Shrivastava. Accurate cache vulnerability modeling in presence of protection techniques. ESWEEK Workshop on Resiliency in Embedded Electronic Systems (REES). October 2015.

• Yohan Ko, Reiley Jeyapaul, Youngbin Kim, Kyoungwoo Lee, Aviral Shrivastava. Guidelines to design parity protected write-back L1 data cache. Design Automation Conference (DAC). June 2015. (Acceptance rate: 162/789 = 20.5%)

• Yohan Ko, Kyoungwoo Lee. Software-based selective voting for dependable coarse-grained reconfigurable architectures against soft errors. ESWEEK Workshop on Compiler Assisted SoC Assembly (CASA). October 2014.

• Jihoon Kang, Yohan Ko, Jongwon Lee, Yongjoo Kim, Hwisoo So, Kyoungwoo Lee, Yunheung Paek. Selective validations for efficient protections on coarse-grained reconfigurable architectures. IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP). June 2013.

• Yohan Ko, Kyoungwoo Lee. Robust register files by exploiting asymmetric soft error rate. Workshop on Synthesis And System Integration of Mixed Information technologies (SASIMI). March 2012.

• Yunrong Li, Jongwon Lee, Yohan Ko, Kyoungwoo Lee, Yunheung Paek. Compiler-assisted soft error correction by duplicating instructions for VLIW architecture. Workshop on Synthesis And System Integration of Mixed Information technologies (SASIMI). March 2012.

International Peer-Reviewed Journals

• Hwisoo So, Yohan Ko, Jinhyo Jung, Kyoungwoo Lee, Aviral Shrivastava. gemV-tool: A comprehensive soft error reliability estimation tool for design space exploration. Electronics. Volume 12, Issue 22, Article 4573. November 2023.

• Hwisoo So, Moslem Didehban, Yohan Ko, Aviral Shrivastava, Kyoungwoo Lee. EXPERTISE: An effective software-level Redundant multithreading scheme against hardware faults. ACM Transactions on Architecture and Code Optimization (TACO). Volume 19, Issue 4 , Article 53. December 2022.

• Jinhyo Jung, Yohan Ko, Hwisoo So, Aviral Shrivastava, Kyoungwoo Lee. Root cause analysis of soft-error-induced failures from hardware and software perspectives. Journal of Systems Architecture. Volume 130. September 2022.

• Yohan Ko. Survey of software-implemented soft error protection. Electronics. Volume 11, Issue 3, Article 456. February 2022.

• Hwisoo So, Moslem Didehban, Yohan Ko, Reiley Jeyapaul, Jongho Kim, Youngbin Kim, Kyoungwoo Lee, Aviral Shrivastava. Revisiting symptom-based fault tolerant techniques against soft errors. Electronics. Volume 10, Issue 23, Article 3028. December 2021. [Video]

• Yohan Ko. Characterizing system-level masking effects against soft errors. Electronics. Volume 10, Issue 18, Article 2286. September 2021.

• Yohan Ko. An ultra-low-cost soft error protection scheme based on the selection of critical variables. Electronics. Volume 10, Issue 17, Article 2101. August 2021.

• Yohan Ko, Soohwan Kim, Hyunchoong Kim, Kyoungwoo Lee. Selective code duplication for soft error protection on VLIW architectures. Electronics. Volume 10, Issue 15, Article 1835. July 2021.

• Yohan Ko, Reiley Jeyapaul, Youngbin Kim, Kyoungwoo Lee, Aviral Shrivastava. Protecting caches from soft errors: A microarchitect’s perspective. ACM Transactions on Embedded Computing Systems (TECS). Volume 16, Issue 4, Article 93. May 2017.

• Yohan Ko, Jihoon Kang, Jongwon Lee, Yongjoo Kim, Joonhyun Kim, Hwisoo So, Kyoungwoo Lee, Yunheung Paek. Software-Based selective validation techniques for robust CGRAs against soft errors. ACM Transactions on Embedded Computing Systems (TECS). Volume 15, Issue 1, Article 20. January 2016.

• Jongwon Lee, Yohan Ko, Kyoungwoo Lee, Jonghee M. Youn, Yunheung Paek. Dynamic code duplication with vulnerability awareness for soft error detection on VLIW architectures. ACM Transactions on Architecture and Code Optimization (TACO). Volume 9, Issue 4, Article 48. January 2013.

Domestic Peer-Reviewed Conferences/Workshops

• Soyeong Park, Daehoon Son, Yebon Kim, Hyojun Lee, Yohan Ko, Yunhwan Lee, Yeonghun Kwon, Jongbae Kim . Data collection platform for activity recognition in virtual reality environments. Korea Software Congress (KSC). December, 2023.

• Yebon Kim, Hongkuk Yoon, Jinhyo Jung, Woobin Ko, Yohan Ko, Kyoungwoo Lee. CUZED: Error correction using zero-weight upon low-cost error detection on fully connected layers. Korea Artificial Intelligence Conference(KAIC). pp.361-362. September,2023

• Jin Hyo Jung, Yohan Ko, Kyoungwoo Lee. Reliability of MISRA-C from the soft error perspective. KIISE Korea Software Congress. December 2018.

• Yohan Ko, Kyoungwoo Lee. The effect of display brightness, font size, and background color on readability of smartphones. KIISE Winter Conference. December 2014.

• Yohan Ko, Youngbin Kim, Kyoungwoo Lee. Accurate cache vulnerability estimation based on word-level behaviors. KIISE Korea Computer Congress (KCC). June 2014. (Superior Presentation Winner)

• Yohan Ko, Jihoon Kang, Jongwon Lee, Yongjoo Kim, Hwisoo So, Kyoungwoo Lee, Yunheung Paek. Selective voting mechanism for low-cost protections on coarse-grained reconfigurable architectures. KIISE Korea Computer Congress (KCC). June 2013. (Superior Presentation Winner)

• Yohan Ko, Kyoungwoo Lee. Robust register files against soft errors by exploiting asymmetric soft error rates. KIISE Fall Conference. November 2011. (Superior Presentation Winner)

Domestic Peer-Reviewed Journals

• Jinhyo Jung, Hwisoo So, Yohan Ko, Kyoungwoo Lee. System-level reliability analysis considering MISRA-C rules. Issue 29, Volume 1. January 2023.

• Yong-Ju Jang, Jinkyoung Yu, Hyunjun Kim, Hyun Joong Kwon, Tae-Eung Sung, Jung-woo Sohn, Yohan Ko. A study on talent recommendation services using artificial intelligence: Focusing on small-sized search firms. Issue 28, Volume 11. November 2022.

• Jung-woo Sohn, Yohan Ko, Younguk Yun. An analysis on employing developer profit incentive to expedite open source software development. Journal of The Korea Society of Computer and Information. Issue 27, Volume 11. November 2022.

• Yohan Ko, Kyoungwoo Lee. Software reliability for automotive embedded system. Korea Information Processing Society Review. Issue 21, Volume 4, Article 5. July 2014.

Registered Patent

• Seunghak Yu, Seungwoo Lee,Hojung Cha, Yohan Ko, Soohwan Kim, Hyunchoong Kim, Kyoungwoo Lee, Jonghoon Shin, Seong-il Hahm, A user terminal device and method for recognizing user location using sensor-based activity recognition, KR Registration No. 1023827010000.

Patent Pending

• Yohan Ko, Critical variable protection methods in software and protection system to prevent soft errors, KR Application Number No. 10-2022-0056762.