Papers by Zirun Guo
Omni-Chart-600K: A Comprehensive Dataset of Chart Types for Chart Understanding (2025.findings-naacl)
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Shulei Wang, Shuai Yang, Wang Lin, Zirun Guo, Sihang Cai, Hai Huang, Ye Wang, Jingyuan Chen, Tao Jin
| Challenge: | Existing chart-related training methods lack capabilities in information extraction, mathematical reasoning, and understanding of multiple chart types. |
| Approach: | They propose a two-stage training strategy and method for jointly training a vision encoder tailored for multi-type charts to address the deficiencies in chart types and limited scope of chart tasks in existing datasets. |
| Outcome: | The proposed dataset includes 21 diverse chart types and tasks, including data retrieval and mathematical reasoning. |
Multimodal Prompt Learning with Missing Modalities for Sentiment Analysis and Emotion Recognition (2024.acl-long)
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| Challenge: | Existing methods for multimodal sentiment analysis often fail due to equipment failure, data corruption, privacy issues and the like. |
| Approach: | They propose a multimodal Transformer framework using prompt learning to address the issue of missing modalities. |
| Outcome: | The proposed framework outperforms existing methods significantly across evaluation metrics. |
View-R1: Asymmetric Policy Optimization for Difficulty-Aware Multimodal Reinforcement Learning (2026.findings-acl)
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| Challenge: | Multimodal Large Language Models (MLLMs) are powerful at integrating diverse data but struggle with complex reasoning. |
| Approach: | They propose a method which separates responses into positive and negative groups to stabilize training and preserve knowledge. |
| Outcome: | The proposed model View-R1 achieves a 10.55% improvement in reasoning and outperforms larger models while maintaining and improving performance on general tasks. |
Efficient Prompting for Continual Adaptation to Missing Modalities (2025.naacl-long)
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| Challenge: | Existing methods combine various missing cases to train recovery modules or align multimodal features, resulting in suboptimal performance, high computational costs, and catastrophic forgetting. |
| Approach: | They propose a continual multimodal missing modality task that uses prompts to learn modalities . existing methods often aggregate various missing cases to train recovery modules . authors conduct extensive experiments on three public datasets . |
| Outcome: | The proposed method consistently outperforms state-of-the-art methods on three public datasets. |