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Challenges and Solutions in Retrieval for Factual Knowledge
Retrieval for factual knowledge requires addressing issues such as pre-training knowledge leakage, prompt injection, and the need to separate control and data channels in the architecture. Solutions include forcing models to only answer based on retrieved documents and designing architecture to bring retrieved models into the language model along a different channel to ensure the language model retrieves information from the retrieved documents. These challenges and solutions are critical for making retrieval-augmented generation safe to use.