activity
20212026
most citedMixed-Type Tabular Data Synthesis with Score-based Diffusion in Latent Space

23 citations · 43 across the 14 of their papers we have counts for

collaborators

14 papers

cs.CL2026

When LLMs Read Tables Carelessly: Measuring and Reducing Data Referencing Errors

Yuqing Yang, Qi Zhu, Zhen Han +5

While large language models (LLMs) perform well on table tasks, they still make data referencing errors (DREs), i.e., incorrectly citing or omitting table values, despite understan…

cs.LG2026

Decomposing MXFP4 quantization error for LLM reinforcement learning: reducible bias, recoverable deadzone, and an irreducible floor

Xiaocan Li, Shiliang Wu, Zheng Shen

MXFP4 arithmetic can dramatically accelerate reinforcement learning (RL) post-training of large language models (LLMs), yet the quantization error introduces severe accuracy degrad…

cs.AI2026

SQL-Trail: Multi-Turn Reinforcement Learning with Interleaved Feedback for Text-to-SQL

Harper Hua, Zhen Han, Zhengyuan Shen +9

While large language models (LLMs) have substantially improved Text-to-SQL generation, a pronounced gap remains between AI systems and human experts on challenging benchmarks such…

cs.LG2025

A-3PO: Accelerating Asynchronous LLM Training with Staleness-aware Proximal Policy Approximation

Xiaocan Li, Shiliang Wu, Zheng Shen

Decoupled PPO has been a successful reinforcement learning (RL) algorithm to deal with the high data staleness under the asynchronous RL setting. Decoupled loss used in decoupled P…

cs.LG2025

The Kinetics of Reasoning: How Chain-of-Thought Shapes Learning in Transformers?

Zihan Pengmei, Costas Mavromatis, Zhengyuan Shen +3

Chain-of-thought (CoT) supervision can substantially improve transformer performance, yet the mechanisms by which models learn to follow and benefit from CoT remain poorly understo…

cs.CL2025

BoundRL: Efficient Structured Text Segmentation through Reinforced Boundary Generation

Haoyuan Li, Zhengyuan Shen, Sullam Jeoung +6

Structured texts refer to texts containing structured elements beyond plain texts, such as code snippets and placeholders. Such structured texts increasingly require segmentation i…

cs.CL2025★ 2 cited

SLOT: Structuring the Output of Large Language Models

Darren Yow-Bang Wang, Zhengyuan Shen, Soumya Smruti Mishra +3

Structured outputs are essential for large language models (LLMs) in critical applications like agents and information extraction. Despite their capabilities, LLMs often generate o…

cs.CL2025★ 14 cited

A Systematic Survey of Automatic Prompt Optimization Techniques

Kiran Ramnath, Kang Zhou, Sheng Guan +18

Since the advent of large language models (LLMs), prompt engineering has been a crucial step for eliciting desired responses for various Natural Language Processing (NLP) tasks. Ho…

cs.LG2024★ 1 cited

Pushing the Limits of All-Atom Geometric Graph Neural Networks: Pre-Training, Scaling and Zero-Shot Transfer

Zihan Pengmei, Zhengyuan Shen, Zichen Wang +2

Constructing transferable descriptors for conformation representation of molecular and biological systems finds numerous applications in drug discovery, learning-based molecular dy…

cs.LG2024

OpenTab: Advancing Large Language Models as Open-domain Table Reasoners

Kezhi Kong, Jiani Zhang, Zhengyuan Shen +5

Large Language Models (LLMs) trained on large volumes of data excel at various natural language tasks, but they cannot handle tasks requiring knowledge that has not been trained on…

cs.CL2023★ 3 cited

Which Examples to Annotate for In-Context Learning? Towards Effective and Efficient Selection

Costas Mavromatis, Balasubramaniam Srinivasan, Zhengyuan Shen +4

Large Language Models (LLMs) can adapt to new tasks via in-context learning (ICL). ICL is efficient as it does not require any parameter updates to the trained LLM, but only few an…

cs.CL2023

NameGuess: Column Name Expansion for Tabular Data

Jiani Zhang, Zhengyuan Shen, Balasubramaniam Srinivasan +3

Recent advances in large language models have revolutionized many sectors, including the database industry. One common challenge when dealing with large volumes of tabular data is…

cs.LG2023★ 23 cited

Mixed-Type Tabular Data Synthesis with Score-based Diffusion in Latent Space

Hengrui Zhang, Jiani Zhang, Balasubramaniam Srinivasan +5

Recent advances in tabular data generation have greatly enhanced synthetic data quality. However, extending diffusion models to tabular data is challenging due to the intricately v…

cs.CL2021

Building a Question Answering System for the Manufacturing Domain

Liu Xingguang, Cheng Zhenbo, Shen Zhengyuan +4

The design or simulation analysis of special equipment products must follow the national standards, and hence it may be necessary to repeatedly consult the contents of the standard…