Add kp-detect-v16 submission

[kprofundis]

Adds kp-detect-v16: stacked ensemble of two per-row scorers with meta-stacker calibration. predictions.json covers all 672K test ids (id + score only). Author: Kareem Elsamadicy (Independent Researcher) — [email protected].

[github-actions]

Eval run succeeded! Link to run: link

Here are the results of the submission(s):

Kareem Elsamadicy (Independent Researcher)

Release date: 2026-05-23

I've committed detailed results of this detector's performance on the test set to this PR.

Warning

Failed to find threshold values that achieve False Positive Rate(s): (['1%']) on all domains. This submission will not appear in the main leaderboard for those FPR values; it will only be visible within the splits in which the target FPR was achieved.
On the RAID dataset as a whole (aggregated across all generation models, domains, decoding strategies, repetition penalties, and adversarial attacks), it achieved an AUROC of 95.60 and a TPR of 87.37% at FPR=5%.
Without adversarial attacks, it achieved AUROC of 96.91 and a TPR of 90.96% at FPR=5%.

If all looks well, a maintainer will come by soon to merge this PR and your entry/entries will appear on the leaderboard. If you need to make any changes, feel free to push new commits to this PR. Thanks for submitting to RAID!