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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.21662 |
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| _version_ | 1866908559284895744 |
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| author | Tabassum, Afrina Guo, Bin Ma, Xiyao Eldardiry, Hoda Lourentzou, Ismini |
| author_facet | Tabassum, Afrina Guo, Bin Ma, Xiyao Eldardiry, Hoda Lourentzou, Ismini |
| contents | Multimodal Procedural Planning (MPP) aims to generate step-by-step instructions that combine text and images, with the central challenge of preserving object-state consistency across modalities while producing informative plans. Existing approaches often leverage large language models (LLMs) to refine textual steps; however, visual object-state alignment and systematic evaluation are largely underexplored. We present MMPlanner, a zero-shot MPP framework that introduces Object State Reasoning Chain-of-Thought (OSR-CoT) prompting to explicitly model object-state transitions and generate accurate multimodal plans. To assess plan quality, we design LLM-as-a-judge protocols for planning accuracy and cross-modal alignment, and further propose a visual step-reordering task to measure temporal coherence. Experiments on RECIPEPLAN and WIKIPLAN show that MMPlanner achieves state-of-the-art performance, improving textual planning by +6.8%, cross-modal alignment by +11.9%, and visual step ordering by +26.7% |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_21662 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | MMPlanner: Zero-Shot Multimodal Procedural Planning with Chain-of-Thought Object State Reasoning Tabassum, Afrina Guo, Bin Ma, Xiyao Eldardiry, Hoda Lourentzou, Ismini Machine Learning Multimodal Procedural Planning (MPP) aims to generate step-by-step instructions that combine text and images, with the central challenge of preserving object-state consistency across modalities while producing informative plans. Existing approaches often leverage large language models (LLMs) to refine textual steps; however, visual object-state alignment and systematic evaluation are largely underexplored. We present MMPlanner, a zero-shot MPP framework that introduces Object State Reasoning Chain-of-Thought (OSR-CoT) prompting to explicitly model object-state transitions and generate accurate multimodal plans. To assess plan quality, we design LLM-as-a-judge protocols for planning accuracy and cross-modal alignment, and further propose a visual step-reordering task to measure temporal coherence. Experiments on RECIPEPLAN and WIKIPLAN show that MMPlanner achieves state-of-the-art performance, improving textual planning by +6.8%, cross-modal alignment by +11.9%, and visual step ordering by +26.7% |
| title | MMPlanner: Zero-Shot Multimodal Procedural Planning with Chain-of-Thought Object State Reasoning |
| topic | Machine Learning |
| url | https://arxiv.org/abs/2509.21662 |