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Quantization Meets Projection: A Happy Marriage for Approximate k-Nearest Neighbor Search

Summary: MRQ combines projection with dimension-wise quantization, encoding only information-dense leading projected dimensions and summarizing the tail. This decouples code length from original dimensionality, enabling tunable compression and up to 3× faster AKNN search at comparable accuracy. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID
h583cca542fb37ef2
Venue
VLDB
Year
2026
Pagerank
4.9793485e-05
Overall Rank
10,709 | 28.00%
DOI
10.14778/3797919.3797931

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Authors

BibTeX Citation

@article{yang_vldb26,
        title = {{Quantization Meets Projection: A Happy Marriage for Approximate k-Nearest Neighbor Search}},
        author = {Yang, Mingyu and Jing, Liuchang and Li, Wentao and Wang, Wei},
        journal = {PVLDB},
        series = {{VLDB} '26},
        volume = {19},
        number = {6},
        pages = {1240--1249},
        doi = {10.14778/3797919.3797931},
        url = {https://doi.org/10.14778/3797919.3797931},
        year = {2026}
}

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Outgoing Citations (Sorted by Pagerank)

Showing 32 of 32 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
20 Similarity Search in High Dimensions via Hashing 1999 VLDB 0.00057568153
74 Fast Approximate Nearest Neighbor Search With The Navigating Spreading-out Graph 2019 VLDB 0.00037091678
298 Query-Aware Locality-Sensitive Hashing for Approximate Nearest Neighbor Search 2016 VLDB 0.00021833987
338 Locality-Sensitive Hashing Scheme Based on Dynamic Collision Counting 2012 SIGMOD 0.00020585187
345 A Comprehensive Survey and Experimental Comparison of Graph-Based Approximate Nearest Neighbor Search 2021 VLDB 0.00020445545
562 SRS: Solving c-Approximate Nearest Neighbor Queries in High Dimensional Euclidean Space with a Tiny Index 2015 VLDB 0.00016335405
713 Cache locality is not enough: High-Performance Nearest Neighbor Search with Product Quantization Fast Scan 2016 VLDB 0.00014571977
804 RaBitQ: Quantizing High-Dimensional Vectors with a Theoretical Error Bound for Approximate Nearest Neighbor Search 2024 SIGMOD 0.00013832333
1,170 Efficient Approximate Nearest Neighbor Search in Multi-dimensional Databases 2023 SIGMOD 0.0001171991
1,225 ACORN: Performant and Predicate-Agnostic Search Over Vector Embeddings and Structured Data 2024 SIGMOD 0.00011444398
1,485 PM-LSH: A Fast and Accurate LSH Framework for High-Dimensional Approximate NN Search 2020 VLDB 0.00010523759
1,601 High-Dimensional Approximate Nearest Neighbor Search: with Reliable and Efficient Distance Comparison Operations 2023 SIGMOD 0.00010103316
1,684 HVS: Hierarchical Graph Structure Based on Voronoi Diagrams for Solving Approximate Nearest Neighbor Search 2022 VLDB 9.8801753e-05
1,957 SeRF: Segment Graph for Range-Filtering Approximate Nearest Neighbor Search 2024 SIGMOD 9.3159589e-05
2,060 Similarity search in the blink of an eye with compressed indices 2023 VLDB 9.0983169e-05
2,265 ELPIS: Graph-Based Similarity Search for Scalable Data Science 2023 VLDB 8.7238222e-05
2,448 DeltaPQ: Lossless Product Quantization Code Compression for High Dimensional Similarity Search 2020 VLDB 8.4494625e-05
2,783 Navigating Labels and Vectors: A Unified Approach to Filtered Approximate Nearest Neighbor Search 2024 SIGMOD 8.0242863e-05
2,821 Practical and Asymptotically Optimal Quantization of High-Dimensional Vectors in Euclidean Space for Approximate Nearest Neighbor Search 2025 SIGMOD 7.9711961e-05
3,385 SymphonyQG: Towards Symphonious Integration of Quantization and Graph for Approximate Nearest Neighbor Search 2025 SIGMOD 7.3548612e-05
3,546 A General and Efficient Querying Method for Learning to Hash 2018 SIGMOD 7.2123214e-05
5,313 Hercules Against Data Series Similarity Search 2022 VLDB 6.1846986e-05
6,126 DIGRA: A Dynamic Graph Indexing for Approximate Nearest Neighbor Search with Range Filter 2025 SIGMOD 5.8785006e-05
6,239 Efficient Data-aware Distance Comparison Operations for High-Dimensional Approximate Nearest Neighbor Search 2025 VLDB 5.8382662e-05
6,459 Efficient Dynamic Indexing for Range Filtered Approximate Nearest Neighbor Search 2025 SIGMOD 5.7771353e-05
6,895 Chameleon: a Heterogeneous and Disaggregated Accelerator System for Retrieval-Augmented Language Models 2025 VLDB 5.6536466e-05
7,004 Accelerating Graph Indexing for ANNS on Modern CPUs 2025 SIGMOD 5.6238624e-05
7,593 DEG: Efficient Hybrid Vector Search Using the Dynamic Edge Navigation Graph 2025 SIGMOD 5.4880197e-05
7,700 VSAG: An Optimized Search Framework for Graph-based Approximate Nearest Neighbor Search 2025 VLDB 5.4750332e-05
8,848 HARMONY: A Scalable Distributed Vector Database for High-Throughput Approximate Nearest Neighbor Search 2026 SIGMOD 5.2646236e-05
8,849 VStream: A Distributed Streaming Vector Search System 2025 VLDB 5.2646236e-05
10,225 CoTra: Towards Efficient and Scalable Distributed Vector Search with RDMA 2026 SIGMOD 5.0571508e-05
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