activity
20242026
collaborators

6 papers

cs.CV2026

CodePercept: Code-Grounded Visual STEM Perception for MLLMs

Tongkun Guan, Zhibo Yang, Jianqiang Wan +10

When MLLMs fail at Science, Technology, Engineering, and Mathematics (STEM) visual reasoning, a fundamental question arises: is it due to perceptual deficiencies or reasoning limit…

cs.CL2026

Error-Aware Knowledge Distillation via Targeted Revision for Customer-Service Summarization

Hee-Jin Lee, Zhen Guo, Luchao Jin +1

We introduce an Analyze-Revise-Finetune (ARF) pipeline that enables smaller open-source language models (LLMs) to surpass substantially larger proprietary models in customer servic…

cs.CL2025

Synthetic Data RL: Task Definition Is All You Need

Yiduo Guo, Zhen Guo, Chuanwei Huang +5

Reinforcement learning (RL) is a powerful way to adapt foundation models to specialized tasks, but its reliance on large-scale human-labeled data limits broad adoption. We introduc…

cs.CV2025

A Token-level Text Image Foundation Model for Document Understanding

Tongkun Guan, Zining Wang, Pei Fu +9

In recent years, general visual foundation models (VFMs) have witnessed increasing adoption, particularly as image encoders for popular multi-modal large language models (MLLMs). H…

cs.CL2025

API Pack: A Massive Multi-Programming Language Dataset for API Call Generation

Zhen Guo, Adriana Meza Soria, Wei Sun +2

We introduce API Pack, a massive multi-programming language dataset containing over one million instruction-API calls for improving the API call generation capabilities of large la…

cs.LG2024

Scaling Law Hypothesis for Multimodal Model

Qingyun Sun, Zhen Guo, PIN AI Team

We propose a scaling law hypothesis for multimodal models processing text, audio, images, and video within a shared token and embedding space. Our framework predicts model performa…