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The Lernaean Hydra of Data Series Similarity Search: An Experimental Evaluation of the State of the Art

Summary: Formalizes the Lernaean Hydra of data-series similarity search by defining the flavors and presenting the first systematic, empirical evaluation of state-of-the-art methods. Shows strengths/weaknesses, clarifies terminology, and guides method selection plus standardization directions. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
11811
Venue
VLDB
Year
2019
Pagerank
6.902069e-05
Overall Rank
3,629 | 74.76%
DOI
10.14778/3282495.3282498

Incoming Non-self Citations Over Time

Authors

Incoming Citations (Sorted by Pagerank)

Showing 30 of 30 citing papers.

Rank Citing Paper Year Venue Pagerank
2,324 RaBitQ: Quantizing High-Dimensional Vectors with a Theoretical Error Bound for Approximate Nearest Neighbor Search 2024 SIGMOD 9.0326444e-05
2,644 Series2Graph: Graph-based Subsequence Anomaly Detection for Time Series 2020 VLDB 8.3832357e-05
3,183 Return of the Lernaean Hydra: Experimental Evaluation of Data Series Approximate Similarity Search 2020 VLDB 7.4228241e-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
4,598 Practical and Asymptotically Optimal Quantization of High-Dimensional Vectors in Euclidean Space for Approximate Nearest Neighbor Search 2025 SIGMOD 6.0586236e-05
4,731 Graph-Based Vector Search: An Experimental Evaluation of the State-of-the-Art 2025 SIGMOD 5.966659e-05
4,853 Debunking Four Long-Standing Misconceptions of Time-Series Distance Measures 2020 SIGMOD 5.8760276e-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
7,095 Dumpy: A Compact and Adaptive Index for Large Data Series Collections 2023 SIGMOD 4.8350023e-05
7,174 Coconut Palm: Static and Streaming Data Series Exploration Now in your Palm 2019 SIGMOD 4.8114555e-05
7,316 Steiner-Hardness: A Query Hardness Measure for Graph-Based ANN Indexes 2024 VLDB 4.7640297e-05
7,654 LiteHST: A Tree Embedding based Method for Similarity Search 2023 SIGMOD 4.687476e-05
8,778 The Inherent Time Complexity and An Efficient Algorithm for Subsequence Matching Problem 2022 VLDB 4.4543399e-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
9,331 dCAM: Dimension-wise Class Activation Map for Explaining Multivariate Data Series Classification 2022 SIGMOD 4.3556432e-05
9,599 SPARTAN: Data-Adaptive Symbolic Time-Series Approximation 2025 SIGMOD 4.3177432e-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
10,833 Cardinality Estimation for Similarity Search on High-Dimensional Data Objects: The Impact of Reference Objects 2025 VLDB 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
11,215 Correlation Joins over Time Series Data Streams Utilizing Complementary Dimension Reduction and Transformation 2023 SIGMOD 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 16 of 16 cited papers.

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

Rank Cited Paper Year Venue Pagerank
2 R-Trees: A Dynamic Index Structure For Spatial Searching 1984 SIGMOD 0.0032169493
6 The R*-tree: An Efficient and Robust Access Method for Points and Rectangles 1990 SIGMOD 0.0016162015
34 Similarity Search in High Dimensions via Hashing 1999 VLDB 0.00076637636
65 Fast Subsequence Matching in Time-Series Databases 1994 SIGMOD 0.00062029383
79 A Quantitative Analysis and Performance Study for Similarity-Search Methods in High-Dimensional Spaces 1998 VLDB 0.00056242144
91 M-tree: An Efficient Access Method for Similarity Search in Metric Spaces 1997 VLDB 0.0005181666
243 Locally Adaptive Dimensionality Reduction for Indexing Large Time Series Databases 2001 SIGMOD 0.00031074984
575 Distance-Based Indexing For High-Dimensional Metric Spaces 1997 SIGMOD 0.00019882723
867 SRS: Solving c-Approximate Nearest Neighbor Queries in High Dimensional Euclidean Space with a Tiny Index 2015 VLDB 0.00015792021
997 Similarity-Based Queries for Time Series Data 1997 SIGMOD 0.00014739219
1,157 A Data-adaptive and Dynamic Segmentation Index for Whole Matching on Time Series 2013 VLDB 0.00013610658
1,161 Querying and Mining of Time Series Data: Experimental Comparison of Representations and Distance Measures 2008 VLDB 0.00013585236
3,540 Scalable, Variable-Length Similarity Search in Data Series: The ULISSE Approach 2018 VLDB 6.9943185e-05
4,219 Matrix Profile X: VALMOD - Scalable Discovery of Variable-Length Motifs in Data Series 2018 SIGMOD 6.3500768e-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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Overall Rank Paper Year Venue Pagerank
6,164 Similarity Search: A Matching Based Approach 2006 VLDB 5.1733919e-05
6,360 High-Dimensional Vector Similarity Search: From Time Series to Deep Network Embeddings 2020 SIGMOD 5.0961051e-05
1,161 Querying and Mining of Time Series Data: Experimental Comparison of Representations and Distance Measures 2008 VLDB 0.00013585236
997 Similarity-Based Queries for Time Series Data 1997 SIGMOD 0.00014739219
7,210 Set-based Similarity Search for Time Series 2016 SIGMOD 4.799457e-05
6,577 On Efficiently Searching Trajectories and Archival Data for Historical Similarities 2008 VLDB 5.0042166e-05
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
3,183 Return of the Lernaean Hydra: Experimental Evaluation of Data Series Approximate Similarity Search 2020 VLDB 7.4228241e-05