该模型包括历史样本数据库、近邻子集搜索程序、近邻子集优化算法和预报量估计技术。
This model includes a historical database, a procedure of searching for the nearest neighbor subset and its optimization algorithm and the technique of predict and estimation.
对 MSIL 代码的优化是对非托管代码进行优化的一个大子集。
The optimizations done on MSIL code are a large subset of those done on unmanaged code.
另一个用途是当DB 2查询优化器确定只需检查分区的一个子集来回答特定查询时，基于分区消除以提高性能。
Another purpose is to improve performance based on partition elimination when the DB2 query optimizer determines that only a subset of the partitions need to be examined to answer as particular query.
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