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PRAGMA: Evaluating Personalized Guidance with Memory Alignment in Lifelong Conversations

arXiv · AI, language, vision and robotics · article · Sep 9, 2026 · UTC

Large language models (LLMs) are increasingly deployed as personalized assistants that interact with users over extended periods of time. As conversations grow longer, relying on full interaction histories becomes increasingly inefficient and unreliable: long contexts introduce substantial computational overhead, making it difficult for models to consistently identify and utilize the most relevant information for the current request. These challenges have motivated memory systems that structure and retrieve user-specific information. In realistic interactions, users often seek practical guidan

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