2) Continuous Approximate Query
连续近似查询
3) continuous range query
连续范围查询
1.
Based on VGQ,one approximate continuous range query algorithm with incremental and bottom-up optimization is proposed.
对移动对象索引频繁更新问题进行了研究,提出了一种基于区域覆盖的空间索引结构虚拟网格四分树(VGQ),通过索引移动对象所在的区域而非移动对象本身来减少由于移动对象位置改变引起的索引结构的改变,并给出了近似连续范围查询算法及增量和自底向上优化策略。
4) continuous multiple range queries
连续多范围查询
1.
To evaluate continuous multiple range queries,considering the rapid development of multicore multi-threading technology and huge main memory,a framework for processing continuous multiple range queries based on multi-threading is proposed,which keeps both the moving objects and queries in main memory.
针对连续多范围查询处理,结合多核多线程技术和大容量内存技术,通过将移动对象和查询放在内存中处理,提出了一种基于多线程的连续多范围查询处理框架。
5) CKNN queries
连续k近邻查询
1.
In order to process CKNN queries on the basis of TPR-tree efficiently,a new spatio-temporal distance metrics minmaxdist(t) was presented as a pruning upper bound.
针对基于TPR树索引的连续k近邻查询,引入了一种新的时空距离度量最小最大距离函数作为TPR树索引搜索时节点剪枝上界。
2.
By introducing directional network distance measurement we proposed the directional network expansion(DNE) algorithm to reduce the network searching cost of CKNN queries processing.
基于道路网络的连续k近邻查询是移动对象数据库领域的研究重点和热点。
6) continuous nearest neighbors inquiry
连续近邻查询
补充资料：近似
相近或相像但不相同：这两个地区的方音有些～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条