DINOSAUR augments ANN indices with sampled embeddings to marginalize uncertainty, recovering standard retrieval at zero uncertainty while expanding coverage for uncertain items.
Jadidinejad, Craig Macdonald, and Iadh Ounis
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Distributional Approximate Nearest Neighbour Search for Uncertainty-Aware Retrieval
DINOSAUR augments ANN indices with sampled embeddings to marginalize uncertainty, recovering standard retrieval at zero uncertainty while expanding coverage for uncertain items.