The key idea of mining association rules for the basket data is studied and several methods to improve algorithm efficiency and rules selection are given.
对零售业销售数据关联规则挖掘算法的关键思想进行了研究，给出了各种提高算法效率的方法以及对规则选择的方法。
It is most important for efficient triangle and triangle intersection test to raise algorithm efficiency of collision detection and strengthen the sense of reality and immersion.
高效率的“三角形和三角形相交测试”对于提高碰撞检测算法效率，增强虚拟场景的真实感和沉浸感起着至关重要的作用。
Then, the preferential constraint relation of sub-assembly is judged by matching assembly knowledge. The algorithm efficiency of generating assembly process APS-tree is improved.
然后，利用装配知识判定子装配体的装配优先约束关系，提高由装配结构树生成装配工艺APS树的效率。
On the basis of balancing algorithm efficiency and accuracy of clustering, improved formula of clustering distance and K average algorithm approach were presented. Satisfactory results were achieved.
并且在权衡算法效率和聚类精度的基础之上提出了改进的聚类距离公式和K -平均算法，达到了较好效果。
Through test function, algorithm efficiency has been validated.
通过测试函数，验证了算法的效率。
Experiments show that the algorithm improve the speed of web mode loading, and the algorithm efficiency is high.
实验表明：本算法对提高Web模式下三维装箱的速度成效显著，且算法效率较高。
During the minimizing process of variational assimilation, calculation efficiency is very important and the optimal step size greatly influences the algorithm efficiency.
在变分同化的最小化过程中，计算效率无疑是最重要的，而优化步长的计算又直接关系到算法效率的成败。
During the minimizing process of variational assimilation, calculation efficiency is very important and the optimal step size greatly influences the algorithm efficiency.
在变分同化的最小化过程中，计算效率无疑是最重要的，而优化步长的计算又直接关系到算法效率的成败。
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