ExpeL

Collection Summary

Model weights를 수정하지 않고 training tasks의 experiences에서 natural-language insights를 추출하고 inference 시 past experiences를 회수하는 experiential-learning agent다.

Evolution History Store

• **Uses rollout history**: yes, explicit experience pool.
• **Stored form**: trial trajectories, success/failure context, extracted insights; Faiss vector store is used for retrieval.
• **Reuse path**: top-k successful trajectories and accumulated insights are retrieved for unseen tasks.
• **Security relevance**: poisoned successful demonstrations, embedding-neighbor manipulation, success-label forgery, unsafe pattern transfer, privacy leakage from retained trajectories.

Primary-Source Detail

The paper states that completed trajectories are ingested into the experience pool and successful trajectories are sampled or retrieved during insight extraction and inference.