collaborators

6 papers

cs.SE2026

R-SQL: Ranking Reward and Resampling for Text-to-SQL

Hojae Han, Yeonseok Jeong, Seung-won Hwang +2

Modern Text-to-SQL systems generate multiple candidate SQL queries and rank them to judge a final prediction. However, existing methods face two limitations. First, they often scor…

cs.LG2026

Learning to Hint for Reinforcement Learning

Yu Xia, Canwen Xu, Zhewei Yao +2

Group Relative Policy Optimization (GRPO) is widely used for reinforcement learning with verifiable rewards, but it often suffers from advantage collapse: when all rollouts in a gr…

cs.CL2026

Learning to Self-Evolve

Xiaoyin Chen, Canwen Xu, Yite Wang +3

We introduce Learning to Self-Evolve (LSE), a reinforcement learning framework that trains large language models (LLMs) to improve their own contexts at test time. We situate LSE i…

cs.CL2025

Arctic-Text2SQL-R1: Simple Rewards, Strong Reasoning in Text-to-SQL

Zhewei Yao, Guoheng Sun, Lukasz Borchmann +7

Translating natural language into SQL (Test2SQL) is a longstanding challenge at the intersection of natural language understanding and structured data access. While large language…

cs.LG2025

ExCoT: Optimizing Reasoning for Text-to-SQL with Execution Feedback

Bohan Zhai, Canwen Xu, Yuxiong He +1

Text-to-SQL demands precise reasoning to convert natural language questions into structured queries. While large language models (LLMs) excel in many reasoning tasks, their ability…

cs.CL2025

ReFoRCE: A Text-to-SQL Agent with Self-Refinement, Consensus Enforcement, and Column Exploration

Minghang Deng, Ashwin Ramachandran, Canwen Xu +4

We present ReFoRCE, a Text-to-SQL agent that tops the Spider 2.0 leaderboard--a challenging benchmark reflecting complex, real-world Text-to-SQL scenarios. While Text-to-SQL system…