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PlugMem: A Task-Agnostic Plugin Memory Module for LLM Agents

arXiv – CS AI|Ke Yang, Zixi Chen, Xuan He, Jize Jiang, Michel Galley, Chenglong Wang, Jianfeng Gao, Jiawei Han, ChengXiang Zhai|
🤖AI Summary

Researchers propose PlugMem, a task-agnostic plugin memory module for LLM agents that structures episodic memories into knowledge-centric graphs for efficient retrieval. The system consistently outperforms existing memory designs across multiple benchmarks while maintaining transferability between different tasks.

Key Takeaways
  • PlugMem addresses the limitation of existing LLM memory systems being either task-specific or ineffective due to context explosion.
  • The system uses knowledge-centric memory graphs that represent propositional and prescriptive knowledge rather than raw experiences.
  • PlugMem can be attached to any LLM agent without requiring task-specific redesigns or modifications.
  • Testing across three diverse benchmarks shows consistent performance improvements over both task-agnostic baselines and task-specific designs.
  • The approach achieves the highest information density under unified information-theoretic analysis.
Read Original →via arXiv – CS AI
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