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ACORN: Performant and Predicate-Agnostic Search Over Vector Embeddings and Structured Data

Summary: ACORN: hybrid ANN + structured search over embeddings/attributes with predicate-agnostic support. Key idea: predicate subgraph traversal on HNSW, implemented as a drop-in extension, yielding state-of-the-art throughput/recall across simple and complex mixed-modality queries. (summarized by gpt-5.4-mini on May 24 2026)

Paper ID
h485bead144a69f22
Venue
SIGMOD
Year
2024
Pagerank
0.00011420277
Overall Rank
1,229 | 91.77%
DOI
10.1145/3654923

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{patel_sigmod24,
        title = {{ACORN: Performant and Predicate-Agnostic Search Over Vector Embeddings and Structured Data}},
        author = {Patel, Liana and Kraft, Peter and Guestrin, Carlos and Zaharia, Matei},
        series = {{SIGMOD} '24},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3654923},
        url = {https://dl.acm.org/doi/10.1145/3654923},
        year = {2024}
}

Incoming Citations (Sorted by Pagerank)

Showing 41 of 41 citing papers.

Rank Citing Paper Year Venue Pagerank
2,611 Semantic Operators and Their Optimization: Enabling LLM-Based Data Processing with Accuracy Guarantees in LOTUS 2025 VLDB 8.2027761e-05
2,728 iRangeGraph: Improvising Range-dedicated Graphs for Range-filtering Nearest Neighbor Search 2024 SIGMOD 8.0686023e-05
2,791 Navigating Labels and Vectors: A Unified Approach to Filtered Approximate Nearest Neighbor Search 2024 SIGMOD 7.9939669e-05
2,836 Practical and Asymptotically Optimal Quantization of High-Dimensional Vectors in Euclidean Space for Approximate Nearest Neighbor Search 2025 SIGMOD 7.9410774e-05
5,376 RetroInfer: A Vector Storage Engine for Scalable Long-Context LLM Inference 2026 VLDB 6.139877e-05
5,633 A Topology-Aware Localized Update Strategy for Graph-Based ANN Index 2026 VLDB 6.039647e-05
5,903 MIRAGE-ANNS: Mixed Approach Graph-based Indexing for Approximate Nearest Neighbor Search 2025 SIGMOD 5.9357915e-05
6,141 DIGRA: A Dynamic Graph Indexing for Approximate Nearest Neighbor Search with Range Filter 2025 SIGMOD 5.856289e-05
6,146 Dynamic Range-Filtering Approximate Nearest Neighbor Search 2025 VLDB 5.8561603e-05
6,197 NaviX: A Native Vector Index Design for Graph DBMSs With Robust Predicate-Agnostic Search Performance 2025 VLDB 5.836466e-05
6,455 AlayaDB: The Data Foundation for Efficient and Effective Long-context LLM Inference 2025 SIGMOD 5.762002e-05
6,475 Efficient Dynamic Indexing for Range Filtered Approximate Nearest Neighbor Search 2025 SIGMOD 5.7553067e-05
6,854 Filtered Vector Search: State-of-the-art and Research Opportunities 2025 VLDB 5.647101e-05
7,023 Accelerating Graph Indexing for ANNS on Modern CPUs 2025 SIGMOD 5.6026129e-05
7,326 RWalks: Random Walks as Attribute Diffusers for Filtered Vector Search 2025 SIGMOD 5.5375978e-05
7,585 SIEVE: Effective Filtered Vector Search with Collection of Indexes 2025 VLDB 5.4747603e-05
8,056 VecFlow: A High-Performance Vector Data Management System for Filtered-Search on GPUs 2026 SIGMOD 5.3830983e-05
8,281 Attribute Filtering in Approximate Nearest Neighbor Search: An In-depth Experimental Study 2026 SIGMOD 5.3462537e-05
8,392 MicroNN: An On-device Disk-resident Updatable Vector Database 2025 SIGMOD 5.3246348e-05
9,952 Cardinality Estimation for Similarity Search on High-Dimensional Data Objects: The Impact of Reference Objects 2025 VLDB 5.0910746e-05
10,358 WoW: A Window-to-Window Incremental Index for Range-Filtering Approximate Nearest Neighbor Search 2026 SIGMOD 5.0156513e-05
10,359 Fast-Convergent Proximity Graphs for Approximate Nearest Neighbor Search 2026 SIGMOD 5.0156513e-05
10,534 FAVOR: Efficient Filter-Agnostic Vector ANNS Based on Selectivity-Aware Exclusion Distances 2026 SIGMOD 4.9605343e-05
10,568 PathSeer: Adaptive Neighbor Handling for Efficient Filtered ANN Search 2026 SIGMOD 4.9605343e-05
10,586 TaCo: Data-adaptive and Query-aware Subspace Collision for High-dimensional Approximate Nearest Neighbor Search 2026 SIGMOD 4.9605343e-05
10,588 Through the Lens of Hubness: A Revisit on Graph-Based Approximate Nearest Neighbor Search: [Experiments & Analysis] 2026 SIGMOD 4.9605343e-05
10,593 VecBench: A Controllable Benchmark for Filtered Vector Search: [Experiments & Analysis] 2026 SIGMOD 4.9605343e-05
10,623 Beyond Vector Search: Querying With and Without Predicates 2026 SIGMOD 4.9605343e-05
10,691 Honeybee: Efficient Role-based Access Control for Vector Databases via Dynamic Partitioning 2026 SIGMOD 4.9605343e-05
10,700 Curator: Efficient Vector Search with Low-Selectivity Filters 2026 SIGMOD 4.9605343e-05
10,780 Quantization Meets Projection: A Happy Marriage for Approximate k-Nearest Neighbor Search 2026 VLDB 4.9605343e-05
10,824 An Experimental Evaluation of Hybrid Querying on Vectors 2026 VLDB 4.9605343e-05
10,840 Harmonizing Efficiency and Accuracy in Filtered Vector Search 2026 VLDB 4.9605343e-05
10,894 Revisiting Filtered ANN Benchmarks: A Hardness-Controlled Benchmark Generator for Realistic Evaluation 2026 VLDB 4.9605343e-05
10,898 Sparse Neighborhood Graph-Based Approximate Nearest Neighbor Search Revisited: Theoretical Analysis and Optimization 2026 VLDB 4.9605343e-05
10,900 RNSG: A Range-Aware Graph Index for Efficient Range-Filtered Approximate Nearest Neighbor Search 2026 VLDB 4.9605343e-05
10,921 GAS: A Lightweight Framework for Filtered Search over Wide-table Vectors 2026 VLDB 4.9605343e-05
10,958 CGIF: Combining Proximity Graphs and Inverted Files for Efficient Filtered Vector Search over Arbitrary Predicates 2026 VLDB 4.9605343e-05
11,098 Advances of Query Processing in Vector Databases 2026 VLDB 4.9605343e-05
11,118 Elastic Index Selection for Label-Hybrid AKNN Search 2026 VLDB 4.9605343e-05
11,485 ML-Asset Management: Curation, Discovery, and Utilization 2025 VLDB 4.9605343e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 11 of 11 cited papers.

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