通过对多种启发式调度规则特性的全面仿真研究与分析，得出了各种规则与生产管理评价指标的影响度关系。
Through full simulation, studying and analysis of the characteristics of simple heuristic scheduling rules, I make sure each rule's influence degree for different evaluation measures.
为了提高查询处理器的执行效率，采用启发式规则来搜索最优的多连接表达式并行调度执行计划。
To improve the execution efficiency of the query processors, the authors exploit heuristics to seek the optimum parallel scheduling execution plan for multi-join expressions.
利用重复匹配算法、聚合算法等启发式方法，提出了布局调度操作的启发式规则及相应的启发式算法。
Based on the idea of repeated matching and clustering arithmetic, the heuristic rules and heuristic algorithm for packing and scheduling problem are put forward.
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