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Hannan Cao

4 accepted papers

2025

Rationalize and Align: Enhancing Writing Assistance with Rationale via Self-Training for Improved Alignment

ACL 2025finding

A Writing Assistant (WA) is a system that offers writing suggestions based on user instructions. Existing WAs are typically built by training large language models (LLMs) on domain-specific instruction data through supervised fine-tuning (SFT) only. However, SFT optimizes models to match a single re…

2023

Unsupervised Grammatical Error Correction Rivaling Supervised Methods

EMNLP 2023long main

State-of-the-art grammatical error correction (GEC) systems rely on parallel training data (ungrammatical sentences and their manually corrected counterparts), which are expensive to construct. In this paper, we employ the Break-It-Fix-It (BIFI) method to build an unsupervised GEC system. The BIFI f…

Cited by 0SourcecodeScholar
2021

Grammatical Error Correction with Contrastive Learning in Low Error Density Domains

EMNLP 2021finding

Although grammatical error correction (GEC) has achieved good performance on texts written by learners of English as a second language, performance on low error density domains where texts are written by English speakers of varying levels of proficiency can still be improved. In this paper, we propo…