Tuning Hierarchical Learned Indexes on Disk and Beyond
Summary: Explores learned hierarchical indexes under external memory (disk/remote storage), where fast random access assumptions fail and I/O dominates cost. Shows that loading the entire index is impractical and per-key lookups trigger extra round-trips; proposes external-memory aware tuning that exploits on-disk key-position patterns to reduce costly accesses. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
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Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 5,327 | DILI: A Distribution-Driven Learned Index | 2023 | VLDB | 5.5660777e-05 |
| 10,172 | HIRE: A Hybrid Learned Index for Robust and Efficient Performance under Mixed Workloads | 2026 | SIGMOD | 4.1905499e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 5 of 5 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 101 | The Case for Learned Index Structures | 2018 | SIGMOD | 0.00049778866 |
| 819 | ALEX: An Updatable Adaptive Learned Index | 2020 | SIGMOD | 0.00016237497 |
| 844 | The PGM-index: a fully-dynamic compressed learned index with provable worst-case bounds | 2020 | VLDB | 0.00015964123 |
| 1,365 | FITing-Tree: A Data-aware Index Structure | 2019 | SIGMOD | 0.00012379754 |
| 1,438 | Benchmarking Learned Indexes | 2021 | VLDB | 0.00011965956 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 101 | The Case for Learned Index Structures | 2018 | SIGMOD | 0.00049778866 |
| 9,745 | Why Are Learned Indexes So Effective but Sometimes Ineffective? | 2025 | VLDB | 4.2856385e-05 |
| 8,100 | Hyper: A High-Performance and Memory-Efficient Learned Index via Hybrid Construction | 2024 | SIGMOD | 4.5821762e-05 |
| 2,550 | Updatable Learned Index with Precise Positions | 2021 | VLDB | 8.5569576e-05 |
| 8,079 | Accelerating String-key Learned Index Structures via Memoization-based Incremental Training | 2024 | VLDB | 4.5873372e-05 |
| 4,056 | Are Updatable Learned Indexes Ready? | 2022 | VLDB | 6.4905689e-05 |
| 1,438 | Benchmarking Learned Indexes | 2021 | VLDB | 0.00011965956 |
| 6,442 | Updatable Learned Indexes Meet Disk-Resident DBMS - From Evaluations to Design Choices | 2023 | SIGMOD | 5.0541252e-05 |
| 5,072 | Learned Index: A Comprehensive Experimental Evaluation | 2023 | VLDB | 5.7121108e-05 |
| 7,389 | Making In-Memory Learned Indexes Efficient on Disk | 2024 | SIGMOD | 4.7386163e-05 |