TLDR Tech / Data
Inside LinkedIn's cognitive memory agent for agentic personalization
LinkedIn built a cognitive memory agent that personalizes its hiring assistant using four layers: conversational, episodic, semantic, and procedural memory. It replaced GraphRAG with a hierarchical tree that supports cheaper incremental updates, while dedicated ingestion, consolidation, and retrieval services keep preferences fresh, traceable, access-controlled, and available within tight latency limits.
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