提出一种基于视口空间的快速精确的拾取算法。
A fast and accurate picking algorithm based on viewport space is presented.
借助数据挖掘领域中序列模式挖掘的方法，提出了相应的预取算法。
The corresponding prefetching algorithm, which comes from the sequential pattern mining method in data mining area, is also raised.
基于这些模板和参数，提出了两种智能预取算法以适应两类不同的数据查询需求。
Based on the query pattern and the real query parameters, it developed two intelligent prefetch algorithms to fit two kinds of demand in data query.
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