Hanqi Zhou https://zhouhq10.github.io Personal website of Hanqi Zhou, PhD student in computational cognitive science at the University of Tübingen. en Sun, 13 Sep 2026 12:43:53 +0000 Welcome — and why I'm starting this notebook https://zhouhq10.github.io/Writing/2026-05-10-welcome/ https://zhouhq10.github.io/Writing/2026-05-10-welcome/ Sun, 10 May 2026 00:00:00 +0000 Writing First post on the new site. Knowledge tracing: can we measure what someone knows? https://zhouhq10.github.io/Writing/2022-06-15-knowledge-tracing/ https://zhouhq10.github.io/Writing/2022-06-15-knowledge-tracing/ Wed, 15 Jun 2022 00:00:00 +0000 Writing An introduction to knowledge tracing -- estimating a student's latent, changing knowledge from a stream of right and wrong answers. A map of the main model families, what I learned reproducing a few of them, and some questions I don't have answers to yet. Learning DAGs by continuous optimization https://zhouhq10.github.io/Writing/2022-05-02-continuous-dag-structure-learning/ https://zhouhq10.github.io/Writing/2022-05-02-continuous-dag-structure-learning/ Mon, 02 May 2022 00:00:00 +0000 Writing How continuous optimization reshaped DAG structure learning.