EduCoder: An Open-Source Annotation System for Education Transcript Data
Saad Ashraf, Jim Malamut Stanford University, Vishal Kumar, Guanzhong Pan, HyunJi Nam Stanford University, Mei Tan, Lucía Langlois, Liliana Carolina Santos-Deonizio 等 10 位作者
We present EduCoder, an open-source web platform designed for annotating classroom conversation transcripts. Existing annotation tools do not support the team-based workflows or access to instructional context that education discourse research requires. EduCoder addresses these gaps by combining transcript text, synchronized video, and instructional materials within a single workspace. The platform supports scoping annotation to specific portions of a lesson, coordinating work across annotation teams, and optionally integrating LLM-generated annotations with structured human–LLM comparison. EduCoder is freely accessible at https://edu-coder.com.
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Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 3: System Demonstrations) · 2026 · 正式发表