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Zi-Hao Zheng

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#artificial intelligence Preprint Aug 2026

Stale Does Not Mean Unsafe: Guard Precision for Tool-Using LLM Agents under Infrastructure State Races

This work evaluates three commit-time guard granularities (global epoch, read-set version, semantic commit predicate), multi-level verification, and model-side gates on three locally hosted quantized model families, and investigates how precisely runtime guards distinguish invalidating races.

Zi-Hao Zheng, Jia-Yu Long, Bai-Chuan Li et al. · 0 citations
Preprint Sep 2026

Engineering Reliable Commit Gates for Agentic AI: Cost-Aware Verification Portfolios under Common-Mode Data Failures

VP-CONTROL, a runtime-assurance design and deterministic benchmark for cost-aware commit gates, is presented, motivating explicit evidence lineage, cost-aware selection, and commit-time enforcement, while exposing the limits of approximate calibration and local-tool generalization.

Zi-Hao Zheng, Bai-Chuan Li, Jun-Yi Yao et al. · 1 citation
Preprint Aug 2026

Reliable Financial Named Entity Recognition Under Domain Shift: Confidence Estimation and Selective Prediction

confidence estimation and selective prediction for financial named entity recognition (NER) on a three-tier stress test spanning SEC filings, financial news, and general-topic social media as an extreme out-of-domain condition, evaluating a BERT tagger and LoRA-tuned Qwen2.

Zi-Hao Zheng, Bai-Chuan Li, Jun-Yi Yao et al. · 2 citations
#natural language process... Preprint Aug 2026

Toward Workflow-Aware Benchmarking for Healthcare NLP Agents

An episode-level evaluation protocol for healthcare NLP agents is introduced, supplying a reproducible intermediate evaluation layer between static benchmarks and prospective workflow studies, with an explicit cost-sensitive treatment of missed versus unnecessary escalation.

Jun-Yi Yao, Bai-Chuan Li, Zi-Hao Zheng et al. · 2 citations
Preprint Aug 2026

Remember, Verify, or Ask? Cross-Family Evaluation of Memory Commitment in LLM Agents

The memory-clarification boundary is studied: whether interaction-derived information should be persisted, used only in the current context, re-verified, or clarified with the user, as well as across Claude and Qwen.

Bai-Chuan Li, Jun-Yi Yao, Zi-Hao Zheng · 3 citations
#artificial intelligence Preprint Jun 2026

Beyond Helpfulness: A Teaching-over-Solving Diagnostic for Measuring Educational Impact in LLM Tutors

It is argued that public tutoring benchmarks can better support positive-impact evaluation by reporting solving-oriented and pedagogy-oriented scores separately and by making disclosure-sensitive, student-agency-preserving criteria more explicit.

Jun-Yi Yao, Zi-Hao Zheng, Baichuan Li · 3 citations

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