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Summary of Mllm As Retriever: Interactively Learning Multimodal Retrieval For Embodied Agents, by Junpeng Yue et al.


MLLM as Retriever: Interactively Learning Multimodal Retrieval for Embodied Agents

by Junpeng Yue, Xinru Xu, Börje F. Karlsson, Zongqing Lu

First submitted to arxiv on: 4 Oct 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: None

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The proposed MART method utilizes interaction data to fine-tune an MLLM retriever based on preference learning, considering the effectiveness of trajectories for specific tasks. This enhances the performance of embodied agents in complex tasks by prioritizing task-relevant trajectory data. The novel Trajectory Abstraction mechanism represents trajectories with fewer tokens while preserving key information, enabling better comprehension of milestones. Experimental results demonstrate significant improvements in task success rates compared to baseline methods across various environments. This work presents a new paradigm for multimodal retrieval in embodied agents, leveraging MLLM’s summarization capabilities and preference learning.
Low GrooveSquid.com (original content) Low Difficulty Summary
MLLM agents can do complex tasks by getting the right information from trajectories. Right now, most methods focus on what surfaces look like or sound like, without thinking about how effective they are for the task. To fix this, we created a new method called MART that uses interaction data to make an MLLM retriever better at finding relevant information. We also made a Trajectory Abstraction mechanism that helps agents understand milestones in trajectories better. Our experiments showed that our method is much better than others at doing tasks in new situations.

Keywords

» Artificial intelligence  » Summarization