Space-Time Tradeoffs for Conjunctive Queries with Access Patterns
Space-Time Tradeoffs for Conjunctive Queries with Access Patterns
复制标题
具有访问模式的联合查询的时空权衡
DOI:
10.1145/3584372.3588675
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Koutris, Paraschos
中科院分区:
文献类型:
--
作者:
Zhao, Hangdong;Deep, Shaleen;Koutris, Paraschos
In this paper, we investigate space-time tradeoffs for answering conjunctive queries with access patterns (CQAPs). The goal is to create a space-efficient data structure in an initial preprocessing phase and use it for answering (multiple) queries in an online phase. Previous work has developed data structures that trades off space usage for answering time for queries of practical interest, such as the path and triangle query. However, these approaches lack a comprehensive framework and are not generalizable. Our main contribution is a general algorithmic framework for obtaining space-time tradeoffs for any CQAP. Our framework builds upon the PANDA algorithm and tree decomposition techniques. We demonstrate that our framework captures all state-of-the-art tradeoffs that were independently produced for various queries. Further, we show surprising improvements over the state-of-the-art tradeoffs known in the existing literature for reachability queries.
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DOI:
--
发表时间:
2017
期刊:
Workshop on Algorithms and Data Structures
影响因子:
--
作者:
Isaac Goldstein;T. Kopelowitz;Moshe Lewenstein;E. Porat
通讯作者:
E. Porat
影响因子:
1.6
作者:
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通讯作者:
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DOI:
--
发表时间:
2012
期刊:
arXiv.org
影响因子:
--
作者:
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通讯作者:
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影响因子:
1.1
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Jesper Sindahl Nielsen
影响因子:
1.8
作者:
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通讯作者:
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