Author

Yi-Fan Zhang

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#artificial intelligence Preprint Oct 2026

Stronger Judges Do Not See More: Deployment-Integrity Blindness in LLM Evaluation

LLM-agent evaluation reports behavioral scores but leaves the identity of the deployed runtime stack unreported. A tampered deployment that preserves evaluated outputs passes every output-only evaluator. We introduce DIB-Bench, a benchmark that measures this deployment-integrity blindness across 7,560 scored examples,...

Jian-Chang Su, Da-Wei Xiang, Yi-Fan Zhang et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Refreshing Less, Selecting Better: Reusing Stale Gradient Features for Efficient Influence-Based Data Selection

Cached Diverse Influence Selection (CDIS), which recomputes gradient features for the top-ranked fraction of candidates under the stale scores, fits an affine calibration on the recomputed examples, and selects the final subset under source and length quotas.

Jian-Chang Su, Yi-Fan Zhang, Wei Zhang · 0 citations