Efficient Uncertainty Tracking for Complex Queries with Attribute-level Bounds
Efficient Uncertainty Tracking for Complex Queries with Attribute-level Bounds
复制标题
具有属性级别界限的复杂查询的高效不确定性跟踪
DOI:
10.1145/3448016.3452791
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Kennedy, Oliver A.
中科院分区:
文献类型:
--
作者:
Feng, Su;Glavic, Boris;Huber, Aaron;Kennedy, Oliver A.
Incomplete and probabilistic database techniques are principled methods for coping with uncertainty in data. Unfortunately, the class of queries that can be answered efficiently over such databases is severely limited, even when advanced approximation techniques are employed.We introduce attribute-annotated uncertain databases (AU-DBs), an uncertain data model that annotates tuples and attribute values with bounds to compactly approximate an incomplete database. AU-DBs are closed under relational algebra with aggregation using an efficient evaluation semantics. Using optimizations that trade accuracy for performance, our approach scales to complex queries and large datasets, and produces accurate results.
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影响因子:
3.4
作者:
Jens Lechtenbörger;H. Shu;G. Vossen
通讯作者:
G. Vossen
DOI:
10.1145/1376916.1376936
发表时间:
2008
期刊:
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
影响因子:
--
作者:
F. Afrati;Phokion G. Kolaitis
通讯作者:
Phokion G. Kolaitis
DOI:
10.1145/3299869.3319887
发表时间:
2019
期刊:
SIGMOD
影响因子:
--
作者:
Feng, Su;Huber, Aaron;Glavic, Boris;Kennedy, Oliver
通讯作者:
Kennedy, Oliver
DOI:
10.1145/5383.5388
发表时间:
1986
期刊:
J. ACM
影响因子:
--
作者:
R. Reiter
通讯作者:
R. Reiter
DOI:
--
发表时间:
2016
期刊:
arXiv.org
影响因子:
--
作者:
P. Kumari;Said Achmiz;Oliver Kennedy
通讯作者:
Oliver Kennedy