Window aggregation query 窗口聚集查询
incremental aggregation query 增量聚集查询
temporal aggregation query algorithm 时态聚集查询算法
Inter-Query Data Aggregation 查询之间的数据合并
·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, based-on attribute-cluster, a new spatiotemporal data aggregation query algorithm is proposed.
提出了基于属性簇的时空数据聚集查询算法。
Aggregation query over high rate data streams: basically, most existing aggregation algorithms adopt the approximation technology to obtain the advancement of rate by sacrificing the accuracy.
高速数据流聚集查询：目前已有的聚集算法绝大多数是采用近似技术，以牺牲精度来换取速度的提高。
Cardinality estimation is a process by which the optimizer USES statistics to determine the size of partial query results after predicates are applied or aggregation is performed.
基数估计是这样一种过程：在应用了谓词或执行了聚集之后，优化器使用统计信息确定部分查询结果的大小。
应用推荐