Yi Cai

schoolSouth China University of Technologybar_chart#7411 Global Rank

Total Papers

HCI Rank

#7411

Research Areas

Years Active

Recent Publications

DensityBars: A Space-Efficient Visualization for Event Temporal Distribution

Event temporal distribution analysis aims to capture both global (e.g., rises and peaks) and local patterns (e.g., frequent occurrences and sudden absences). Traditional charts typically rely on adjusting binning granularities to reveal such patterns. However, this strategy forces a trade-off between global clarity an…

CHI '26CorrespondingHuman-LLM Collaboration +3

Open-ended Structured Question Assessment with Human-LLM Collaboration

Open-ended Structured Questions (OSQs) assess not only students’ knowledge but also their reasoning and expression. However, grading OSQ requires fine-grained, scoring point–level analysis, which is labor-intensive and difficult to scale. Although recent LLM-based and human–AI collaborative grading systems improve eff…

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