Multi-dimensional Complex Query Optimization for Disease-Specific Data Exploration Based on Data Lake.
Zhentao HuKaige WangWeifan WangWenkui ZhengYong ZhangXin LiGao FeiWenyao LiLuoxi WangPublished in: HIS (2023)
Keyphrases
- query optimization
- data exploration
- multi dimensional
- data sets
- data visualization
- data analysis
- data quality
- data collection
- databases
- data from different sources
- complex queries
- cost model
- data sources
- data structure
- data processing
- knowledge discovery
- selectivity estimation
- tree structure
- data points
- data model
- query execution
- database systems
- approximate query answering