Research archive

Questions worth making precise.

My work studies how agents learn, search, and remain reliable when information is hidden and other decision-makers can adapt.

R.01

Preprint / arXiv:2608.09954 / 2026

Safe Observation Capacity for Opponent Exploitation under Showdown Censoring

A safe method for learning exploitable opponent behavior when folds censor private-card observations.

Jiaxing Guo

Imperfect-information games · Opponent exploitation · Safe active learning
R.02

Preprint / arXiv:2608.14761 / 2026

CFR without Unbiasedness: Deterministic Guarantees for Persistent Public-Chance Schedules

Deterministic convergence guarantees and exploitability certificates for persistent partial public-chance evaluation.

Jiaxing Guo, Lei Ye

Counterfactual regret · Public-chance sampling · Exploitability certificates
R.03

Preprint / 2026

From Win Rate to Worst Case: Auditing Language-Model Policies in Imperfect-Information Games

Exact best-response audits reveal worst-case vulnerabilities that selected-opponent evaluations can miss.

Jiaxing Guo

Language models · Exploitability · Policy evaluation
R.04

Public research artifact / 2026

Model-Guided Public-Belief Search

Research tools for scalable search in imperfect-information games.

Public-belief search · Imperfect information · Model-guided planning