Going Beyond Provenance: Explaining Query Answers with Pattern-based Counterbalances
Going Beyond Provenance: Explaining Query Answers with Pattern-based Counterbalances
复制标题
超越出处:用基于模式的平衡解释查询答案
DOI:
10.1145/3299869.3300066
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Roy, Sudeepa
中科院分区:
文献类型:
--
作者:
Miao, Zhengjie;Zeng, Qitian;Glavic, Boris;Roy, Sudeepa
Provenance and intervention-based techniques have been used to explain surprisingly high or low outcomes of aggregation queries. However, such techniques may miss interesting explanations emerging from data that is not in the provenance. For instance, an unusually low number of publications of a prolific researcher in a certain venue and year can be explained by an increased number of publications in another venue in the same year. We present a novel approach for explaining outliers in aggregation queries through counter- balancing. That is, explanations are outliers in the opposite direction of the outlier of interest. Outliers are defined w.r.t. patterns that hold over the data in aggregate. We present efficient methods for mining such aggregate regression pat- terns (ARPs), discuss how to use ARPs to generate and rank explanations, and experimentally demonstrate the efficiency and effectiveness of our approach.
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影响因子:
1.6
作者:
Pearson, Karl
通讯作者:
Pearson, Karl
DOI:
--
发表时间:
2012
期刊:
SIGMOD Conference
影响因子:
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DOI:
--
发表时间:
2017
期刊:
IEEE International Conference on Data Engineering
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