collaborators

10 papers

cs.CL2026

Self-Improving Pretraining: using post-trained models to pretrain better models

Ellen Xiaoqing Tan, Jack Lanchantin, Shehzaad Dhuliawala +9

Large language models are classically trained in stages: pretraining on raw text followed by post-training for instruction following and reasoning. However, this separation creates…

cs.AI2026

Reasoning over mathematical objects: on-policy reward modeling and test time aggregation

Pranjal Aggarwal, Marjan Ghazvininejad, Seungone Kim +18

The ability to precisely derive mathematical objects is a core requirement for downstream STEM applications, including mathematics, physics, and chemistry, where reasoning must cul…

cs.CL2026

K-Function: Joint Pronunciation Transcription and Feedback for Evaluating Kids Language Function

Shuhe Li, Chenxu Guo, Jiachen Lian +18

Evaluating young children's language is challenging for automatic speech recognizers due to high-pitched voices, prolonged sounds, and limited data. We introduce K-Function, a fram…

cs.CL2026

Decoupling Strategy and Execution in Task-Focused Dialogue via Goal-Oriented Preference Optimization

Jingyi Xu, Xingyu Ren, Zhoupeng Shou +2

Large language models show potential in task-oriented dialogue systems, yet existing training methods often rely on token-level likelihood or preference optimization, which poorly…

cs.AI2025

CoT-Self-Instruct: Building high-quality synthetic prompts for reasoning and non-reasoning tasks

Ping Yu, Jack Lanchantin, Tianlu Wang +6

We propose CoT-Self-Instruct, a synthetic data generation method that instructs LLMs to first reason and plan via Chain-of-Thought (CoT) based on given seed tasks, and then generat…

cs.CL2025

Self-Consistency Preference Optimization

Archiki Prasad, Weizhe Yuan, Richard Yuanzhe Pang +6

Self-alignment, whereby models learn to improve themselves without human annotation, is a rapidly growing research area. However, existing techniques often fail to improve complex…