Dynamic Prompting Improves Turn-taking in Embodied Spoken Dialogue Systems
Yifan Shen, Dingdong Liu, Xiaoyu Mo, Fugee Tsung, Xiaojuan Ma, Bertram E. Shi
CV
Education
- Ph.D in Computer Science and Engineering, The Hong Kong University of Science and Technology (HKUST), 2026 (expected)
- B.S. in Computer Science and B.S. in Data Science and Engineering (second major), The Hong Kong University of Science and Technology (HKUST), 2022. First Class Honor.
Professional experience
- Student Research Assistant : Jan 2022 - Mar. 2022
- Roger King Center for Asian Family Business and Family Office, HKUST
- Duties included: Data collection and cleaning, focusing on financial reports, share ownership, and stock data of listed companies in Hong Kong to identify family businesses.
- Supervisor: Prof. Winnie Peng.
- Algo Trading Challenge Team Leader : Nov. 2020 - Feb 2021
- Joint-University Algo Trading Challenge 2021 (Hong Kong)
- Duties included: Lead a team to design a novel trading algorithm in Forex market. Designed a data mining algorithm to predict future price in forex market.
- Second place in Best Strategy.
- Assistant Project Manager : May - Aug. 2020
- Wuhan YCIG I-Link Technology Co. Ltd
- Duties includes: Project modeling and refinement to achieve CMMI rank 5. Analyzed 5 major projects in the past 3 years with more than 5 million investments on each.
Skills
- Programming language: C++, Python, Java, Octave, Git
- Fields: Android Development (Skilled), Deep Learning (Skilled)
Publications
Scaffolded Turns and Logical Conversations: Designing Humanized LLM-Powered Conversational Agents for Hospital Admission Interviews
Dingdong Liu, Yujing Zhang, Bolin Zhao, Shuai Ma, Chuhan Shi, and Xiaojuan Ma. 2025. Scaffolded Turns and Logical Conversations: Designing Humanized LLM-Powered Conversational Agents for Hospital Admission Interviews. In Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems (CHI '25). Association for Computing Machinery, New York, NY, USA, Article 643, 1–23. https://doi.org/10.1145/3706598.3714196
InsightBridge: Enhancing Empathizing with Users through Real-Time Information Synthesis and Visual Communication
Junze Li, Yue Zhang, Chengbo Zheng, Dingdong Liu, Zeyu Huang, and Xiaojuan Ma. 2025. InsightBridge: Enhancing Empathizing with Users through Real-Time Information Synthesis and Visual Communication. In Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems (CHI '25). Association for Computing Machinery, New York, NY, USA, Article 167, 1–15. https://doi.org/10.1145/3706598.3713640
A Humanoid Robot Dialogue System Architecture Targeting Patient Interview Tasks
Yifan SHEN*, Dingdong Liu*, Yejin Bang*, Ho Shu Chan, Rita Frieske, Hoo Choun CHUNG, Jay Patrick Monton Nieles, Tianjia ZHANG, Trung Kien Pham, Wai Yi Rosita CHENG, YINI FANG, Qifeng Chen, Pascale FUNG, Xiaojuan Ma, Bertram Emil Shi. 2024 33rd IEEE International Conference on Robot and Human Interactive Communication (ROMAN), Pasadena, CA, USA, 2024, pp. 1394-1401, doi: 10.1109/RO-MAN60168.2024.10731285.
Exploring Scaffolding Techniques for Agent-Administered Brief Cognitive Screening in Hospital Settings
Dingdong Liu, Sensen Gao, Zixin Chen, Yifan Shen, Chuhan Shi, Bertram E. Shi, and Xiaojuan Ma. 2024. Exploring Scaffolding Techniques for Agent-Administered Brief Cognitive Screening in Hospital Settings. In Companion Publication of the 2024 ACM Designing Interactive Systems Conference (DIS '24 Companion). Association for Computing Machinery, New York, NY, USA, 185-189. https://doi.org/10.1145/3656156.3663697
CoArgue : Fostering Lurkers’ Contribution to Collective Arguments in Community-based QA Platforms
Chengzhong Liu, Shixu Zhou, Dingdong Liu, Junze Li, Zeyu Huang, and Xiaojuan Ma. 2023. CoArgue_: Fostering Lurkers' Contribution to Collective Arguments in Community-based QA Platforms. In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI '23). Association for Computing Machinery, New York, NY, USA, Article 271, 1-17. https://doi.org/10.1145/3544548.3580932
PlanHelper: Supporting Activity Plan Construction with Answer Posts in Community-based QA Platforms
Chengzhong Liu, Zeyu Huang, Dingdong Liu, Shixu Zhou, Zhenhui Peng, and Xiaojuan Ma. 2022. PlanHelper: Supporting Activity Plan Construction with Answer Posts in Community-based QA Platforms. Proc. ACM Hum.-Comput. Interact. 6, CSCW2, Article 454 (November 2022), 26 pages. https://doi.org/10.1145/3555555
Exploring the Effects of Self-Mockery to Improve Task-Oriented Chatbot’s Social Intelligence
Chengzhong Liu, Shixu Zhou, Yuanhao Zhang, Dingdong Liu, Zhenhui Peng, and Xiaojuan Ma. 2022. Exploring the Effects of Self-Mockery to Improve Task-Oriented Chatbot's Social Intelligence. In Proceedings of the 2022 ACM Designing Interactive Systems Conference (DIS '22). Association for Computing Machinery, New York, NY, USA, 1315-1329. https://doi.org/10.1145/3532106.3533461
Teaching
Service and leadership
- Person in Charge of Peer Mentor Program : Aug 2019 – Sep 2020
- Mainland Students Scholars Society, UG Section, HKUST
- Designed a two-week orientation program hosting more than 300 first-year students.
- Led over 100 senior students to provide support and guidance during the program.
- General Secretary : Feb. 2019 – Feb. 2020
- Mainland Students Scholars Society, UG Section, HKUST