Learned index: A comprehensive experimental evaluation

Z Sun, X Zhou, G Li - Proceedings of the VLDB Endowment, 2023 - dl.acm.org
Indexes can improve query-processing performance by avoiding full table scans. Although
traditional indexes (eg, B+-tree) have been widely used, learned indexes are proposed to …

Are updatable learned indexes ready?

C Wongkham, B Lu, C Liu, Z Zhong, E Lo… - arxiv preprint arxiv …, 2022 - arxiv.org
Recently, numerous promising results have shown that updatable learned indexes can
perform better than traditional indexes with much lower memory space consumption. But it is …

PLIN: a persistent learned index for non-volatile memory with high performance and instant recovery

Z Zhang, Z Chu, P **, Y Luo, X **e, S Wan… - Proceedings of the …, 2022 - dl.acm.org
Non-Volatile Memory (NVM) has emerged as an alternative to next-generation main
memories. Although many tree indices have been proposed for NVM, they generally use B+ …

Updatable learned indexes meet disk-resident DBMS-from evaluations to design choices

H Lan, Z Bao, JS Culpepper… - Proceedings of the ACM …, 2023 - dl.acm.org
Although many updatable learned indexes have been proposed in recent years, whether
they can outperform traditional approaches on disk remains unknown. In this study, we …

Film: A fully learned index for larger-than-memory databases

C Ma, X Yu, Y Li, X Meng, A Maoliniyazi - Proceedings of the VLDB …, 2022 - dl.acm.org
As modern applications generate data at an unprecedented speed and often require the
querying/analysis of data spanning a large duration, it is crucial to develop indexing …

DILI: A distribution-driven learned index

P Li, H Lu, R Zhu, B Ding, L Yang, G Pan - Proceedings of the VLDB …, 2023 - dl.acm.org
Targeting in-memory one-dimensional search keys, we propose a novel DIstribution-driven
Learned Index tree (DILI), where a concise and computation-efficient linear regression …

SALI: A scalable adaptive learned index framework based on probability models

J Ge, H Zhang, B Shi, Y Luo, Y Guo, Y Chai… - Proceedings of the …, 2023 - dl.acm.org
The growth in data storage capacity and the increasing demands for high performance have
created several challenges for concurrent indexing structures. One promising solution is the …

{COLE}: A column-based learned storage for blockchain systems

C Zhang, C Xu, H Hu, J Xu - 22nd USENIX Conference on File and …, 2024 - usenix.org
Blockchain systems suffer from high storage costs as every node needs to store and
maintain the entire blockchain data. After investigating Ethereum's storage, we find that the …

Making in-memory learned indexes efficient on disk

J Zhang, K Su, H Zhang - Proceedings of the ACM on Management of …, 2024 - dl.acm.org
Learned indexes have been demonstrated to outperform traditional ones in memory-
resident scenarios. However, recent studies show that they fail to outperform B+ tree when …

LSGraph: a locality-centric high-performance streaming graph engine

H Qi, Y Wu, L He, Y Zhang, K Luo, M Cai, H **… - Proceedings of the …, 2024 - dl.acm.org
Streaming graph has been broadly employed across various application domains. It
involves updating edges to the graph and then performing analytics on the updated graph …