How a 1.5B Parameter Model Can Add External Knowledge to Any Frozen LLM
The article analyzes MEMO, a framework that equips a frozen large language model with a lightweight 1.5B‑parameter memory model fine‑tuned on a target corpus, detailing its architecture, five‑step data synthesis pipeline, structured inference protocol, experimental advantages over RAG and fine‑tuning, as well as its limitations and future research directions.
