The Optimization of Querying XML Data for Regular Path Expressions Based on Dynamic Programming 规则路径表示下XML数据查询的动态规划优化方法
Only after the optimization of regular path expressions, can we answer the regular path expressions using SQLs. 正则路径表达式经过这个简化过程以后才能方便,高效地使用SQL/DOM来回答XML查询;
Through the ant colony algorithm optimization processes infection elements of the sky luminance, we get the coefficient value of the expressions of sky luminance relative distribution. 通过蚁群算法对天空亮度各影响要素的分析优化处理,得到天空亮度相对分布对表达式的各系数值。
Aiming at the optimization design of U-shaped cantilever-based biosensor, expressions for predicting sensitivity and resolution are derived by combining stress distribution with power densities of noise. 针对U型悬臂梁的结构优化设计,结合噪声理论和应力分布推导出了悬臂梁灵敏度和最小分辨力的表达式。