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OOD-DiskANN: Efficient and Scalable Graph ANNS for Out-of-Distribution Queries. (arXiv:2211.12850v1 [cs.LG])
Nov. 24, 2022, 7:12 a.m. | Shikhar Jaiswal, Ravishankar Krishnaswamy, Ankit Garg, Harsha Vardhan Simhadri, Sheshansh Agrawal
cs.LG updates on arXiv.org arxiv.org
State-of-the-art algorithms for Approximate Nearest Neighbor Search (ANNS)
such as DiskANN, FAISS-IVF, and HNSW build data dependent indices that offer
substantially better accuracy and search efficiency over data-agnostic indices
by overfitting to the index data distribution. When the query data is drawn
from a different distribution - e.g., when index represents image embeddings
and query represents textual embeddings - such algorithms lose much of this
performance advantage. On a variety of datasets, for a fixed recall target,
latency is worse …
More from arxiv.org / cs.LG updates on arXiv.org
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