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Return of the Lernaean Hydra: Experimental Evaluation of Data Series Approximate Similarity Search

Summary: Taxonomy reconciling data-series and multidimensional-vector similarity, with indexing changes for approximate queries with guarantees. Study on synthetic/real data, in-memory and on-disk, showing data-series methods beat disk-based vector baselines and stay competitive in memory. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
12244
Venue
VLDB
Year
2020
Pagerank
7.4228241e-05
Overall Rank
3,183 | 77.86%
DOI
10.14778/3368289.3368303

Incoming Non-self Citations Over Time

Authors

Incoming Citations (Sorted by Pagerank)

Showing 27 of 27 citing papers.

Rank Citing Paper Year Venue Pagerank
1,757 VHP: Approximate Nearest Neighbor Search via Virtual Hypersphere Partitioning 2020 VLDB 0.00010660932
2,435 iDEC: Indexable Distance Estimating Codes for Approximate Nearest Neighbor Search 2020 VLDB 8.8252237e-05
2,644 Series2Graph: Graph-based Subsequence Anomaly Detection for Time Series 2020 VLDB 8.3832357e-05
2,725 HVS: Hierarchical Graph Structure Based on Voronoi Diagrams for Solving Approximate Nearest Neighbor Search 2022 VLDB 8.2294908e-05
3,225 DeltaPQ: Lossless Product Quantization Code Compression for High Dimensional Similarity Search 2020 VLDB 7.3463484e-05
3,400 ELPIS: Graph-Based Similarity Search for Scalable Data Science 2023 VLDB 7.1405533e-05
4,536 Data Series Progressive Similarity Search with Probabilistic Quality Guarantees 2020 SIGMOD 6.104642e-05
4,731 Graph-Based Vector Search: An Experimental Evaluation of the State-of-the-Art 2025 SIGMOD 5.966659e-05
5,738 Hercules Against Data Series Similarity Search 2022 VLDB 5.3478528e-05
6,360 High-Dimensional Vector Similarity Search: From Time Series to Deep Network Embeddings 2020 SIGMOD 5.0961051e-05
6,376 DET-LSH: A Locality-Sensitive Hashing Scheme with Dynamic Encoding Tree for Approximate Nearest Neighbor Search 2024 VLDB 5.0916875e-05
7,095 Dumpy: A Compact and Adaptive Index for Large Data Series Collections 2023 SIGMOD 4.8350023e-05
7,316 Steiner-Hardness: A Query Hardness Measure for Graph-Based ANN Indexes 2024 VLDB 4.7640297e-05
7,843 Subspace Collision: An Efficient and Accurate Framework for High-dimensional Approximate Nearest Neighbor Search 2025 SIGMOD 4.6367909e-05
8,646 Accelerating Product Quantization Query Execution Runtime 2021 SIGMOD 4.477163e-05
9,206 Odyssey: A Journey in the Land of Distributed Data Series Similarity Search 2023 VLDB 4.373492e-05
9,230 LeaFi: Data Series Indexes on Steroids with Learned Filters 2025 SIGMOD 4.3690661e-05
9,291 DARTH: Declarative Recall Through Early Termination for Approximate Nearest Neighbor Search 2026 SIGMOD 4.3619549e-05
9,331 dCAM: Dimension-wise Class Activation Map for Explaining Multivariate Data Series Classification 2022 SIGMOD 4.3556432e-05
9,822 DIDS: Double Indices and Double Summarizations for Fast Similarity Search 2024 VLDB 4.2757088e-05
9,881 VStream: A Distributed Streaming Vector Search System 2025 VLDB 4.2643674e-05
9,914 RWalks: Random Walks as Attribute Diffusers for Filtered Vector Search 2025 SIGMOD 4.2561557e-05
10,331 MS-Index: Fast Top-k Subsequence Search for Multivariate Time Series under Euclidean Distance 2026 VLDB 4.1945683e-05
10,466 A Structured Study of Multivariate Time-Series Distance Measures 2025 SIGMOD 4.1945683e-05
10,884 Representative Time Series Discovery for Data Exploration 2025 VLDB 4.1945683e-05
11,110 DeepSketch: A Query Sketching Interface for Deep Time Series Similarity Search 2024 VLDB 4.1945683e-05
11,235 Accelerating Similarity Search for Elastic Measures: A Study and New Generalization of Lower Bounding Distances 2023 VLDB 4.1945683e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 14 of 14 cited papers.

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

Rank Cited Paper Year Venue Pagerank
6 The R*-tree: An Efficient and Robust Access Method for Points and Rectangles 1990 SIGMOD 0.0016162015
65 Fast Subsequence Matching in Time-Series Databases 1994 SIGMOD 0.00062029383
91 M-tree: An Efficient Access Method for Similarity Search in Metric Spaces 1997 VLDB 0.0005181666
129 The X-tree: An Index Structure for High-Dimensional Data 1996 VLDB 0.0004429571
212 Fast Approximate Nearest Neighbor Search With The Navigating Spreading-out Graph 2019 VLDB 0.00033913475
243 Locally Adaptive Dimensionality Reduction for Indexing Large Time Series Databases 2001 SIGMOD 0.00031074984
931 The Pyramid-Technique: Towards Breaking the Curse of Dimensionality 1998 SIGMOD 0.00015238406
1,010 HD-Index: Pushing the Scalability-Accuracy Boundary for Approximate kNN Search in High-Dimensional Spaces 2018 VLDB 0.00014652858
1,161 Querying and Mining of Time Series Data: Experimental Comparison of Representations and Distance Measures 2008 VLDB 0.00013585236
1,183 A Cost Model For Nearest Neighbor Search in High-Dimensional Data Space 1997 PODS 0.00013455596
1,811 A Cost Model for Similarity Queries in Metric Spaces 1998 PODS 0.00010467197
3,629 The Lernaean Hydra of Data Series Similarity Search: An Experimental Evaluation of the State of the Art 2019 VLDB 6.902069e-05
5,758 Top-k Nearest Neighbor Search In Uncertain Data Series 2015 VLDB 5.339397e-05
7,418 Uncertain Time-Series Similarity: Return to the Basics 2012 VLDB 4.7354852e-05
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Semantically Similar Papers

Overall Rank Paper Year Venue Pagerank
997 Similarity-Based Queries for Time Series Data 1997 SIGMOD 0.00014739219
6,360 High-Dimensional Vector Similarity Search: From Time Series to Deep Network Embeddings 2020 SIGMOD 5.0961051e-05
6,577 On Efficiently Searching Trajectories and Archival Data for Historical Similarities 2008 VLDB 5.0042166e-05
9,822 DIDS: Double Indices and Double Summarizations for Fast Similarity Search 2024 VLDB 4.2757088e-05
79 A Quantitative Analysis and Performance Study for Similarity-Search Methods in High-Dimensional Spaces 1998 VLDB 0.00056242144
34 Similarity Search in High Dimensions via Hashing 1999 VLDB 0.00076637636
4,536 Data Series Progressive Similarity Search with Probabilistic Quality Guarantees 2020 SIGMOD 6.104642e-05
3,540 Scalable, Variable-Length Similarity Search in Data Series: The ULISSE Approach 2018 VLDB 6.9943185e-05
5,738 Hercules Against Data Series Similarity Search 2022 VLDB 5.3478528e-05
3,629 The Lernaean Hydra of Data Series Similarity Search: An Experimental Evaluation of the State of the Art 2019 VLDB 6.902069e-05