Abstract
Range aggregate queries find frequent application in data analytics. In many use cases, approximate results are preferred over accurate results if they can be computed rapidly and satisfy approximation guarantees. Inspired by a recent indexing approach, we provide means of representing a discrete point dataset by continuous functions that can then serve as compact index structures. More specifically, we develop a polynomial-based indexing approach, called PolyFit, for processing approximate range aggregate queries. PolyFit is capable of supporting multiple types of range aggregate queries, including COUNT, SUM, MIN and MAX aggregates, with guaranteed absolute and relative error bounds. Experimental results show that PolyFit is faster and more accurate and compact than existing learned index structures.
Original language | English |
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Title of host publication | Advances in Database Technology - EDBT 2021 : 24th International Conference on Extending Database Technology, Proceedings |
Editors | Yannis Velegrakis, Yannis Velegrakis, Demetris Zeinalipour, Panos K. Chrysanthis, Panos K. Chrysanthis, Francesco Guerra |
Number of pages | 12 |
Publisher | OpenProceedings.org |
Publication date | 2021 |
Pages | 241-252 |
ISBN (Electronic) | 978-3-89318-084-4 |
DOIs | |
Publication status | Published - 2021 |
Event | Advances in Database Technology - 24th International Conference on Extending Database Technology, EDBT 2021 - Virtual, Nicosia, Cyprus Duration: 23 Mar 2021 → 26 Mar 2021 |
Conference
Conference | Advances in Database Technology - 24th International Conference on Extending Database Technology, EDBT 2021 |
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Country/Territory | Cyprus |
City | Virtual, Nicosia |
Period | 23/03/2021 → 26/03/2021 |
Sponsor | Oracle, Snowflake, ZOOM, Zoom Video Communications, Inc. |
Series | Advances in Database Technology |
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ISSN | 2367-2005 |
Bibliographical note
Publisher Copyright:© 2021 Copyright held by the owner/author(s).