![photo](/research/assets/changkun_ou3.png)
Dr. Ou received a Ph.D. in computer science at LMU Munich on April 3rd, 2023. His research explores design tradeoffs on intelligent human-in-the-loop systems and develops machine-learning algorithms to support user decision-making processes. In context, he employs efficient and robust engineering practices to design and implement systems that deliver actual impact to real users.
He is enthusiastic about the open-source movement and active in the Go community. For more open-source work, see GitHub profile.
Publications
- ๐ฌ๐ง Francesco Chiossi, U Gruenefeld, Baoshen James Hou, Joshua Newn, Changkun Ou, Rulu Liao, Robin Welsch, Sven Mayer. 2024. Understanding the Impact of the Reality-Virtuality Continuum on Visual Search Using Fixation-Related Potentials and Eye Tracking Features. Proc. ACM Hum.-Comput. Interact. 8, MHCI, Article 281 (September 2024), 33 pages doi:10.1145/3676528. . .
- ๐ฌ๐ง Francesco Chiossi, Ines Trautmannsheimer, Changkun Ou, Uwe Gruenefeld, Sven Mayer. 2024. Searching Across Realities: Investigating ERPs and Eye-Tracking Correlates of Visual Search in Mixed Reality. IEEE Transactions on Visualization and Computer Graphics. Forthcoming. . .
- ๐ฌ๐ง Changkun Ou. Sven Mayer, Daniel Buschek, Andreas Butz. 2024. Rethinking Opinion Measurement Interfaces for Human-in-the-Loop Optimization. In ACM Transactions on Computer-Human Interaction. ACM, New York, NY, USA, 28 pages. SUBMITTED.
- ๐ฌ๐ง Francesco Chiossi, Changkun Ou, Carolina Gerhardt, Felix Putze, Sven Mayer. 2024. Designing and Evaluating an Adaptive Virtual Reality System using EEG Frequencies to Balance Internal and External Attention States. International Journal of Human-Computer Studies. SUBMITTED. doi:10.48550/arXiv.2311.10447. . .
- ๐ฌ๐ง Francesco Chiossi, Changkun Ou, and Sven Mayer. 2024. Optimizing Visual Complexity for Physiologically-Adaptive VR Systems: Evaluating a Multimodal Dataset using EDA, ECG and EEG Features. In International Conference on Advanced Visual Interfaces 2024, June 03โ07, 2024, Arenzano, Genoa, Italy. ACM, New York, NY, USA, 9 pages. ๐ Best Paper Award. doi:10.1145/3656650.3656657. .
- ๐ฌ๐ง Rifat Mehreen Amin, Feng Chen, Linda Hirsch, Changkun Ou, Tran-Vu La, Andreas Butz. 2024. Integrating Crowd and Machine Learning in an Intelligent Interface: A Case Study of Oil Spill Detection in Satellite Images. In International Conference on Advanced Visual Interfaces 2024, June 03โ07, 2024, Arenzano, Genoa, Italy. ACM, New York, NY, USA, 9 pages. doi:10.1145/3656650.3656680. .
- ๐ฌ๐ง Changkun Ou, Sven Mayer, Andreas Butz. 2023. The Impact of Expertise in the Loop for Exploring Machine Rationality. In 28th International Conference on Intelligent User Interfaces (IUI โ23), March 27โ31, 2023, Sydney, NSW, Australia. ACM, New York, NY, USA, 15 pages. doi:10.1145/3581641.3584040. .
- ๐ฌ๐ง Francesco Chiossi, Changkun Ou, Sven Mayer. 2023. Exploring Physiological Correlates of Visual Complexity Adaptation: Insights from EDA, ECG, and EEG Data for Adaptation Evaluation in VR Adaptive Systems. In the 2023 ACM Conference on Human-Computer Interaction (CHI'23) Extended Abstract. ACM, New York, NY, USA, 6 pages. doi:10.1145/3544549.3585624. .
- ๐ฌ๐ง Francesco Chiossi, Luke Haliburton, Changkun Ou, Andreas Butz, Albrecht Schmidt. 2023. Short-Form Videos Degrade Our Capacity to Retain Intentions: Effect of Context Switching On Prospective Memory. In the 2023 ACM Conference on Human-Computer Interaction (CHI'23). ACM, New York, NY, USA, 14 pages. doi:10.1145/3544548.3580778. .
- ๐ฌ๐ง Dennis Dietz, Carl Oechsner, Changkun Ou, Francesco Chiossi, Fabio Sarto, Sven Mayer, Andreas Butz. 2022. Walk This Beam: Impact of Different Balance Assistance Strategies and Height Exposure on Performance and Physiological Arousal in VR. In 28th ACM Symposium on Virtual Reality Software and Technology (VRST '22). ACM, New York, NY, USA, Article 32, 12 pages. ๐ Best Paper Award. doi:10.1145/3562939.3567818. .
- ๐ฌ๐ง Changkun Ou, Daniel Buschek, Sven Mayer, Andreas Butz. 2022. The Human in the Infinite Loop: A Case Study on Revealing and Explaining Human-AI Interaction Loop Failures. In Mensch und Computer 2022 (MuC'22). ACM, New York, NY, USA, 11 pages. ๐ Honorable Mention Award. doi:10.1145/3543758.3543761. .
- ๐ฌ๐ง Julius Girbig, Changkun Ou, and Sylvia Rothe. 2022. Generative 3D Animation Pipelines: Automating Facial Retargeting Workflows. In Workshop on โAI-Generated Characters: Putting Deepfakes to Good Useโ of CHI '22: ACM CHI Conference on Human Factors in Computing Systems. New Orleans, LA, USA, 4 pages. doi:10.48550/arXiv.2204.12553.
- ๐ฌ๐ง Changkun Ou. 2022. (Generic) Functional Options Pattern. In the golang.design Initiative Research. 9 pages.
- ๐จ๐ณ Quancheng Rao, Changkun Ou. 2022. The Handbook of Go Programmer Interview. China Machine Press. ISBN: 9787111702429.
- ๐ฌ๐ง Changkun Ou, Daniel Buschek, Malin Eiband, Andreas Butz. 2021. Modeling Web Browsing Behavior across Tabs and Websites with Tracking and Prediction on the Client Side. arXiv preprint. 10 pages. doi:10.48550/arXiv.2103.04694. .
- ๐ฌ๐ง Changkun Ou. 2021. The Ultimate Channel Abstraction. In the golang.design Initiative Research. 14 pages.
- ๐ฌ๐ง Changkun Ou. 2021. A Concurrent-safe Centralized Pointer Managing Facility. In the golang.design Initiative Research. 14 pages.
- ๐ฌ๐ง Changkun Ou. 2021. Scheduling Function Calls with Zero Allocation. In the golang.design Initiative Research. 16 pages.
- ๐ฌ๐ง Changkun Ou. 2020. Pointers Might Not be Ideal as Arguments. In the golang.design Initiative Research. 10 pages.
- ๐ฌ๐ง Changkun Ou. 2020. Eliminating A Source of Measurement Errors in Benchmarks. In the golang.design Initiative Research. 10 pages.
- ๐ฌ๐ง Kai Hollรคnder, Luca Schellenberg, Changkun Ou, and Andreas Butz. 2020. All Fun and Games: Obtaining Critical Pedestrian Behavior Data from an Online Simulation. In Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems (CHI EA '20). ACM, New York, NY, USA, 9 pages. doi:10.1145/3334480.3382797.
- ๐ฌ๐ง Changkun Ou, Yifei Zhan, Yaxi Chen. 2019. Identifying Malicious Players in GWAP-based Disaster Monitoring Crowdsourcing System. In the 2nd International Conference on Artificial Intelligence and Big Data (ICAIBD). IEEE. New York, NY, USA, 10 pages. ๐ Best Paper Award. doi:10.1109/ICAIBD.2019.8836972.
- ๐จ๐ณ ๐ฌ๐ง Changkun Ou. 2021. Modern C++ Tutorial: C++11/14/17/20 On the Fly. In GitHub. 89 pages. Website.
- ๐ฌ๐ง Jingyi Li, Changkun Ou, Yong Ma. 2019. Cultivation and Incentivization of HCI Research and Community in China: Taxonomy and Social Endorsements. In Workshop on โHCI in China: Research Agenda, Education Curriculum, Industry Partnership, and Communities Buildingโ of the 2020 CHI Conference on Human Factors in Computing Systems (CHI EA '19). Glasgow, UK, 7 pages.
- ๐ฌ๐ง Changkun Ou. 2018. An Introduction to Recent Mobile Affective Inference Techniques: Methods, Applications and Challenges. In Advanced Seminar Media Computer Science, LMU Munich. 9 pages.
- ๐ฌ๐ง Matthias Geiger, Changkun Ou, Cedric Quintes. 2017. WatchOut: A Road Safety Extension for Pedestrians on a Public Windshield Display. doi:10.48550/arXiv.1905.05390. 5 pages.
- ๐จ๐ณ Yaxi Chen, Changkun Ou. 2016. Combining Touch Biometrics and Motion Sensors for Hand Posture Recognition and User Authentication System. In Journal of Southwest University for Nationalities (Nature Science Edition). 7 pages.
- ๐จ๐ณ Yaxi Chen, Changkun Ou, Zhaoyang Guo. 2014. Space interactions based on monocular vision and simple gestures. In Journal of Southwest University for Nationalities (Natural Science Edition). 6 pages.
- ๐ฌ๐ง Changkun Ou, Mu Huang, Mengxin Shi, Jiang Cheng. 2014. A Study in Keep-Right-Except-To-Pass Rule. In the Mathematical Contest in Modeling (MCM). 35 pages. ๐ Meritorious Winner.
Theses
- ๐ฌ๐ง Changkun Ou. 2023. The Intelligence in the Loop: Empirical Explorations and Reflections. In the Institute of Computer Science. LMU Munich. 130 pages. Ph.D. Dissertation. doi:10.5282/edoc.32969. . .
- ๐ฌ๐ง Changkun Ou. 2019. Understanding and Predicting Web Browsing Behavior. In the Institute of Computer Science. LMU Munich. 70 pages. Master Thesis.
- ๐ฌ๐ง ๐จ๐ณ Changkun Ou. 2016. Designing Alternative Contact-free Control Modalities for Smart Watches. In the Institute of Computer Science. Southwest University of Nationalities. 47 pages. Bachelor Thesis. ๐ Excellent Bachelor Thesis.
Presentations
- ๐ฌ๐ง Changkun Ou. Nov 30, 2023. A Glimpse to Profile-guided Optimization in Go: Early practices of bringing PGO to production. SIXT Portugal Golang Meetup.
- ๐ฌ๐ง Changkun Ou. Jun 10, 2023. Go on GPU. GopherChina 2023.
- ๐ฌ๐ง Changkun Ou. Apr 3, 2023. The Intelligence In the Loop: Empirical Explorations and Reflections. PhD Defense. . .
- ๐ฌ๐ง Changkun Ou. Mar 29, 2023. The Impact of Expertise In the Loop for Exploring Machine Rationality. IUI 2023.
- ๐ฌ๐ง Changkun Ou. Sep 6, 2022. The Human in the Infinite Loop: A Case Study on Revealing and Explaining Human-AI Interaction Loop Failures. MuC 2022.
- ๐ฌ๐ง Changkun Ou. April 04, 2022. The Decision Maker's Dilemma: or how I stopped struggling with possible choices. IDC 2022 Spring.
- ๐จ๐ณ Changkun Ou. Mar 30, 2022. Go 1.18 ไธญ็ๆณๅ. TalkGo Meetup. . .
- ๐จ๐ณ Changkun Ou. Mar 21, 2022. ไปไนๆฏ็ๆง็็คพๅบ่ฎจ่ฎบ?. TalkGo Meetup.
- ๐ฌ๐ง Changkun Ou. Oct 15, 2021. Can we compute free will? IDC 2021 Autumn.
- ๐ฌ๐ง Changkun Ou. Mar 15, 2021. Delicate Dance: Preferences in Interactive Meshing. IDC 2021 Spring.
- ๐ฌ๐ง Changkun Ou. Oct 7, 2020. A Future of Polygon Reduction. IDC 2020 Autumn.
- ๐จ๐ณ Changkun Ou. Mar 26, 2020 ๅฏน Go ็จๅบ่ฟ่กๅฏ้ ็ๆง่ฝๆต่ฏ. TalkGo Meetup. .
- ๐จ๐ณ Changkun Ou. Mar 18, 2020. Go 2 Generics? A (P)review. TalkGo Meetup. . .
- ๐จ๐ณ Changkun Ou. Jan 2, 2020. time.Timer ๆบ็ ๅๆ. TalkGo Meetup. .
- ๐ฌ๐ง Changkun Ou. Dec 19, 2019. Online Multimedia: Technological Outlook. Lecture Online Multimedia.
- ๐จ๐ณ Changkun Ou. Nov 10, 2019. Understanding Communicating Sequential Processes. TalkGo Meetup. . .
- ๐ฌ๐ง Changkun Ou. Oct 9, 2019. Simplicity is Complicated: On the Balance of Performance and Knobs. IDC 2019 Autumn.
- ๐จ๐ณ Changkun Ou. Sep 12, 2019. Real-world Go Concurrency Bugs. TalkGo Meetup. . .
- ๐จ๐ณ Changkun Ou. Aug 22, 2019. channel/select ๆบ็ ๅๆ. TalkGo Meetup. . .
- ๐ฉ๐ช Changkun Ou. Jul 8, 2019. Buchungstermin schneller im Kreisverwaltungsreferat. German Learning Class.
- ๐จ๐ณ Changkun Ou. May 27, 2019. ็ป็ ็ฉถ็็ๅญฆๆฏๅปบ่ฎฎ. ่ฅฟๅๆฐๆๅคงๅญฆๅ ้จๅไบซ.
- ๐ฌ๐ง Changkun Ou. May 26, 2019. Identifying Malicious Players in GWAP-based Disaster Monitoring Crowdsourcing System. ICAIBD 2019.
- ๐ฌ๐ง Changkun Ou. Apr 3, 2019. A Glimpse to the Advances of Mesh Representation Learning. IDC 2019 Spring.
- ๐ฌ๐ง Changkun Ou. Jan 8, 2019. Understanding and Predicting Web Clickstreams. Masters' Defense
- ๐ฌ๐ง Changkun Ou. May 24, 2018. On the Development of Qualified UX Metric. Design Workshop II.
- ๐ฌ๐ง Changkun Ou. Mar 13, 2018. Capsule Network with Routing Mechanism: Part 2 Matrix Capsules. LMU Machine Learning Meetup.
- ๐ฌ๐ง Changkun Ou. Feb 26, 2018. Mobile Affective Inference: Methods, Applications and Challenges. LMU Media Informatics Seminar.
- ๐ฌ๐ง Changkun Ou. Feb 10, 2017. Understanding Generalization in Deep Learning. LMU Deep Learning Seminar.
- ๐ฌ๐ง Changkun Ou. Dec 17, 2017. Capsule Network with Routing Mechanism: Part 1 Dynamic Routing. LMU Machine Learning Meetup.
- ๐ฌ๐ง Hermann Redich, Patrick Bรถrzel, Isabella Galter, Collin Leiber, and Changkun Ou. Dec 07, 2017. Convolutional Neural Network: from Zero to Hero. LMU Informatics Deep Learning Seminar.
- ๐จ๐ณ Changkun Ou. Sep 12, 2017. ๆๅจๅพทๅฝๅญฆไน ไบบๆบไบคไบ็ไธๅนด. ่ฅฟๅๆฐๆๅคงๅญฆๅ ้จๅไบซ.
- ๐จ๐ณ Changkun Ou. May 17, 2016. ๆบ่ฝๆ่กจ็้ๆฅ่งฆๅคๆฉไบคไบๆจกๅผ็่ฎพ่ฎก. ๆฌ็งๆฏไธ็ญ่พฉ.
Teaching
- ๐ฌ๐ง Changkun Ou. 2020, 2021, 2022. Computer Graphics Tutorial. Assistant. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2020, 2021. Practical Geometry Processing. Instructor. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2022. Lecture Information Visualization. Assistant. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2020. Seminar Advances in Computer Graphics. Assistant. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2019. Seminar Advanced Media Informatics. Assistant. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2018. Lecture Deep Learning and Artificial Intelligence. Tutor. LMU Munich.
- ๐ฌ๐ง Changkun Ou. 2018. Lecture Machine Learning. Tutor. LMU Munich.
Awards
- 2023: Gary Marsden Travel Award, ACM
- 2022: Best Paper Award, VRST 2022
- 2022: Honorable Mention Award, MuC 2022
- 2020: Papers with Special Recognitions for Outstanding Reviews, CHI2020
- 2019: Best Paper Award, ICAIBD2019
- 2016: Excellent Bachelor Thesis
- 2014: MCM Meritorious Winner
Scientific Activities
Associate Chair
Reviewer
- CHI (2020, 2021, 2022, 2023, 2024, 2025)
- INTERACT (2021)
- ICMI (2022, 2023)
- IMWUT (2022)
- MobileHCI (2023)
Student Volunteer
- CHI (2020)
- Smart Graphics (2015)
Attending
- AMP Winter School 2022 on Philosophy of Science (Oberstdorf, Germany) Website
- AMP Winter School 2020 on How Artificial Intelligence Impacts User-Centered Innovation Processes (Oberstdorf, Germany) Website
- CIX Summer School 2019 on Computational Interaction (New York, USA) Website
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