Zirui Cheng

schoolTsinghua Universitybar_chart#4640 Global Rank

Total Papers

HCI Rank

#4640

Research Areas

Years Active

Recent Publications

TreeQuestion: Assessing Conceptual Learning Outcomes with LLM-Generated Multiple-Choice Questions

The advances of generative AI have posed a challenge for using open-ended questions to assess conceptual learning outcomes, as it is increasingly common for students to use tools like ChatGPT to generate long textual answers. Teachers have to spend substantial time reading the answers and inferring students' learning…

CHI '243rd AuthorCommunity Collaboration & Wikipedia +1

Wikibench: Community-Driven Data Curation for AI Evaluation on Wikipedia

AI tools are increasingly deployed in community contexts. However, datasets used to evaluate AI are typically created by developers and annotators outside a given community, which can yield misleading conclusions about AI performance. How might we empower communities to drive the intentional design and curation of eva…

CHI '232nd AuthorHuman Pose & Activity Recognition +1

Modeling the Trade-off of Privacy Preservation and Activity Recognition on Low-Resolution Images

A computer vision system using low-resolution image sensors can provide intelligent services (e.g., activity recognition) but preserve unnecessary visual privacy information from the hardware level. However, preserving visual privacy and enabling accurate machine recognition have adversarial needs on image resolution.…

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