Part of leap-kt-toolkit, a systematic re-implementation of published Knowledge Tracing models under one protocol. This repository holds every fold of every dataset this model has been run on, with the per-epoch training logs and the exact user split alongside the checkpoints.
Protocol
User-level 80/20 train/test split · 5-fold cross-validation over the training portion · held-out fold as validation · early stopping patience 10 on validation AUC · max 200 epochs.
Every cell in the project runs under identical settings; a cell that cannot is recorded as a documented failure rather than re-run under bespoke settings.
Results
dataset
AUC
ACC
F1
published reference
delta
algebra2005
0.7852 ± 0.0027
0.8011
0.8757
—
—
assist2009
0.7555 ± 0.0033
0.7258
0.8011
—
—
assist2012
0.7673 ± 0.0010
0.7506
0.8324
—
—
bridge2algebra2006
0.7788 ± 0.0017
0.8425
0.9105
—
—
dbe_kt22
0.8063 ± 0.0008
0.7947
0.8713
—
—
junyi
0.8141 ± 0.0010
0.7766
0.8490
—
—
Per-fold values are in each dataset's summary.json. The mean is never reported without the spread — 0.75 ± 0.001 and 0.75 ± 0.09 are different claims.
Why these numbers may differ from other reproductions
Multi-concept questions are not expanded into multiple rows. Toolkits that do expand them place consecutive test positions carrying the same question and the same response, so a model is shown the answer one step before predicting it; on ASSIST2009 that is around 37% of positions and lifts DKT from a published ~0.75 to ~0.89 AUC. Here concepts are an extra axis on the interaction rather than extra rows, so the leak is not expressible and every interaction is scored exactly once.
Cells carrying a published reference value are additionally leak-audited before release: train/test user disjointness, no window crossing the split boundary, exactly-once scoring, and a label-shuffle control that must collapse AUC to chance. Cells with no comparable published number rely on the structural guarantee above rather than on that audit.
Files
<dataset>/summary.json mean ± std and per-fold AUC
<dataset>/split.json the exact user partition, with a checksum
<dataset>/fold<k>/checkpoint/ config.json + weights
<dataset>/fold<k>/epochs.jsonl every epoch's train loss and validation metrics;
each row carries its own model/dataset/fold
<dataset>/fold<k>/run.json protocol and package version for that run
Provenance
Produced by leap-kt at commit(s) 2c1ccef, a782d79, e3a8dc3, e952327.
