Approximate OLAP of document-oriented databases: A variety-aware approach
作者：
Highlights：
• The inherent variety of documents hinders proper OLAP analyses.
• We propose an approximated OLAP approach that captures and exploits schema variety.
• A multidimensional view is given by detecting approximated functional dependencies.
• We propose indicators to predict and evaluate the quality of OLAP queries.
• We show that the approach improves the coverage and precision of OLAP queries.
摘要
•The inherent variety of documents hinders proper OLAP analyses.•We propose an approximated OLAP approach that captures and exploits schema variety.•A multidimensional view is given by detecting approximated functional dependencies.•We propose indicators to predict and evaluate the quality of OLAP queries.•We show that the approach improves the coverage and precision of OLAP queries.
论文关键词：NoSQL,Document-oriented databases,Multidimensional modeling,OLAP
论文评审过程：Received 18 June 2018, Revised 5 December 2018, Accepted 12 February 2019, Available online 18 February 2019, Version of Record 13 July 2019.
论文官网地址：https://doi.org/10.1016/j.is.2019.02.004
