一作ACL 2026Findings· Findings of ACL
COCOGEC : Counterfactual Generation for Robust Grammatical Error Correction
Qianyu Wang · Xiaoman Wang · Yuanyuan Liang · Xinyuan Li · Yunshi Lan
摘要
Grammatical error correction (GEC) systems are usually trained and evaluated on GEC benchmarks, but their performance often drops sharply once the surrounding context is slightly perturbed or extended. This indicates that the existing GEC models usually fail to understand the error patterns in th...