Composition-Grounded Data Synthesis for Visual Reasoning

Fuente: arXiv
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Auteurs principaux: Gu, Xinyi, Mao, Jiayuan, Hong, Zhang-Wei, Yu, Zhuoran, Li, Pengyuan, Joshi, Dhiraj, Feris, Rogerio, He, Zexue
Format: Preprint
Publié: 2025
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author Gu, Xinyi
Mao, Jiayuan
Hong, Zhang-Wei
Yu, Zhuoran
Li, Pengyuan
Joshi, Dhiraj
Feris, Rogerio
He, Zexue
author_facet Gu, Xinyi
Mao, Jiayuan
Hong, Zhang-Wei
Yu, Zhuoran
Li, Pengyuan
Joshi, Dhiraj
Feris, Rogerio
He, Zexue
contents Pretrained multi-modal large language models (MLLMs) demonstrate strong performance on diverse multimodal tasks, but remain limited in reasoning capabilities for domains where annotations are difficult to collect. In this work, we focus on artificial image domains such as charts, rendered documents, and webpages, which are abundant in practice yet lack large-scale human annotated reasoning datasets. We introduce COGS (COmposition-Grounded data Synthesis), a data-efficient framework for equipping MLLMs with advanced reasoning abilities from a small set of seed questions. The key idea is to decompose each seed question into primitive perception and reasoning factors, which can then be systematically recomposed with new images to generate large collections of synthetic question-answer pairs. Each generated question is paired with subquestions and intermediate answers, enabling reinforcement learning with factor-level process rewards. Experiments on chart reasoning show that COGS substantially improves performance on unseen questions, with the largest gains on reasoning-heavy and compositional questions. Moreover, training with a factor-level mixture of different seed data yields better transfer across multiple datasets, suggesting that COGS induces generalizable capabilities rather than dataset-specific overfitting. We further demonstrate that the framework extends beyond charts to other domains such as webpages.
format Preprint
id arxiv_https___arxiv_org_abs_2510_15040
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Composition-Grounded Data Synthesis for Visual Reasoning
Gu, Xinyi
Mao, Jiayuan
Hong, Zhang-Wei
Yu, Zhuoran
Li, Pengyuan
Joshi, Dhiraj
Feris, Rogerio
He, Zexue
Computer Vision and Pattern Recognition
Computation and Language
Machine Learning
Pretrained multi-modal large language models (MLLMs) demonstrate strong performance on diverse multimodal tasks, but remain limited in reasoning capabilities for domains where annotations are difficult to collect. In this work, we focus on artificial image domains such as charts, rendered documents, and webpages, which are abundant in practice yet lack large-scale human annotated reasoning datasets. We introduce COGS (COmposition-Grounded data Synthesis), a data-efficient framework for equipping MLLMs with advanced reasoning abilities from a small set of seed questions. The key idea is to decompose each seed question into primitive perception and reasoning factors, which can then be systematically recomposed with new images to generate large collections of synthetic question-answer pairs. Each generated question is paired with subquestions and intermediate answers, enabling reinforcement learning with factor-level process rewards. Experiments on chart reasoning show that COGS substantially improves performance on unseen questions, with the largest gains on reasoning-heavy and compositional questions. Moreover, training with a factor-level mixture of different seed data yields better transfer across multiple datasets, suggesting that COGS induces generalizable capabilities rather than dataset-specific overfitting. We further demonstrate that the framework extends beyond charts to other domains such as webpages.
title Composition-Grounded Data Synthesis for Visual Reasoning
topic Computer Vision and Pattern Recognition
Computation and Language
Machine Learning
url https://arxiv.org/abs/2510.15040