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Xingchi Guo

Research

Research

Questions I am investigating around AI security and trustworthy, evidence-grounded AI systems. Entries state plainly what exists so far.

AI Security Research

Evidence Integrity Research

A research effort studying prompt injection against evidence-grounded LLM applications: systems that are expected to tie each claim they make to supporting source material. So far it has a threat model, a deterministic evidence-grounded testbed, and a clean-versus-attack paired benchmark, all on synthetic data. The harness has only been exercised with a deterministic test double, so there are no empirical findings yet.

Read the methodology

Research question
Can adversarial instructions embedded in source documents corrupt claim-level evidence integrity in evidence-grounded LLM applications?
Status
Methodology and benchmark harness built; no real-model results yet
Topics
  • Evidence-grounded AI systems
  • Prompt / evidence integrity
  • Adversarial evaluation
  • Reproducible experiments
Repository
Not public yet
Paper
No paper yet
Experiments
  • Evidence-grounded testbed Complete

    Synthetic cases, deterministic segmentation, structured assessments, and structural reference validation.

  • Paired attack benchmark Harness complete (test double only)

    Ten clean-versus-attack pairs across four fixed attack classes, with deterministic paired metrics.

  • Real-model pilot Not run

    The same frozen benchmark run once against a real model.

Results
No results yet