arXiv Machine Learning By Yin Yi, Haiping Ma, Siyu Song, Ziwen Wang, Shangshang Yang

Text as an Index for Zero-Shot Cross-Domain Knowledge Tracing

Read the original on arXiv Machine Learning →

The paper introduces TIZSKT, a zero‑shot cross‑domain knowledge tracing model that separates behavioral sequence modeling from domain‑local historical evidence construction. It uses text as an index via a frozen text encoder and unsupervised per‑domain projection to build question addresses, then aggregates a student’s past outcomes into a question‑specific historical correctness summary. Experiments on three public datasets show that TIZSKT outperforms baselines in mean AUC and accuracy, with ablations confirming the importance of text addressing and cross‑segment continuation.

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