查询词典 linear search
- 与 linear search 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The progression of a search was rarely linear, with each site leading to one new site .
一个检索的进行很少是线性的,在每一个网站引导到另外一个新的网站。
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First of all, a vector parallel of linear feature is obtained by calculating the corresponding vertex of parallel for every vertex based on angle bisector and then a greedy search strategy is adopted to find the optimal labeling position.
该方法求取平行线精度高,算法强壮性好,能满足线状要素注记的需要。
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The relationship between transient response and shape design variables is highly non-linear, and the behavior of feasible domains is often not good, which may cause convergence difficulties. In order to improve convergence speed of iteration process, some algorithms the feasible domains adjusting, the adaptive move limit, the approximate line search and the approximate reanalysis, are adopted.
采用基于Newmark积分的直接求导法计算瞬态响应灵敏度,在序列二次规划算法中采用了可行域调整、近似—维搜索、自适应运动极限等改进技术,提高求解效率和收敛稳定性,以解决结构动态响应与设计变量的关系复杂、高度非线性,优化可行区域的性态不良等问题。
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Second, On the basis of analysis of density distribution of sequence points on the chaotic orbit of one-dimension chaotic mapping, a mutative interval chaotic optimization algorithm is presented in search for the solution optimums of the non-linear constrained problems with multi-variables and multi-peak values. With the objective function probability measurement approaching a limit 1, the convergence of the algorithm on the global optimal solution is proofed by aid of Chebyshev inequality.
二、基于一维混沌映射混沌点集的概率测度分析,提出了一种适于解决多变量多峰值非线性约束问题的新的混沌优化算法——变区间混沌优化算法,并应用切比雪夫不等式论证了算法依概率收敛于全局最优解。
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Adjacency search, double linked element list, random direction search, adjacency rotation, and heredity of geometrical quantities are applied to increase the efficiency of mesh generation. The relationship between the computing time and the number of generated elements is nearly linear and the time complexity is O(N^1.05), where N is the number of elements.
采用了邻接单元搜索、双向链表存储、随机方向搜索、邻接旋转、几何量继承等技术,使算法的计算时间与生成单元数近似呈线性关系,时间复杂度达到O(N^1.05),N为生成单元数。
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Based on the duality theorem of linear programming, the directional derivatives of the objective function can be expressed as a linear programming which is very important in the practical calculation for nonmono tone line search subproblems.
基于线性规划的对偶定理,目标函数的方向导数可以表示成线性规划问题,这在实际计算非单调线搜索子问题时是非常重要的。
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Optimal algorithm of combined nonlinear Hopfield network appears powerful validity in solving nonlinear planning, which includes nonlinear objective function, linear constrains and high-demension of decision-making variants, for its ability of nonlinear parallel computation. It is prominent among optimal algorithms because of its function of simply implement with electrocircuit hardware. Genetic algorithm is expressly suitable for optimal calculation regarding the planning of massive, highly nonlinear, inconsecutively differentiable and multiobjective function as well as objective function without analytical expression. However, it inclines to prematurity, as well as its limitation in ability of partial optimal search. Introducing the optimal algorithm of niche genetic simulated annealing to standard Genetic algorithm, can therefore improve the full-scale or partial search ability of Genetic algorithm effectively. It has a far-flung perspective in the field of systemic planning of water pollution control.
组合式非线性Hopfield网络优化算法所具有的非线性大规模并行计算能力在求解具有非线性目标函数、线性约束条件及高维决策变量的非线性规划问题方面显示出了强大的生命力,它易于电路硬件实现的功能更是在优化算法中独树一帜;遗传算法采用概率搜索技术,不受目标函数与约束条件的限制,特别适合大规模、高度非线性的不连续可微的多峰目标函数及无解析表达式的目标函数的规划问题的优化计算,但其存在容易早熟、局部寻优能力较差等缺点,本文在标准遗传算法中引入小生境技术及模拟退火算法有效地改善遗传算法的全局和局部搜索性能,提高了全局最优解的寻优质量,小生境遗传退火模拟优化算法在水污染控制系统规划中的应用前景极为广阔。
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After a short-term load forecasting method based analogous and linear extrapolation is proposed, the load forecast and the priority of equipment action are led into static reactive power optimization. The aim function is constructed for the practical situation of power system. On the basis of traditional genetic algorithm the fitness function and the holding of population diversity are improved. The adjacent search operator is applied to improve ability of local search.
在提出基于相似日和线性外推的短期负荷预测新方法的基础上,将负荷预测和设备动作优先级引入静态无功优化中,并结合电网实际情况,构造了实用的目标函数,对遗传算法的适应度函数和群体多样性的保持进行了改进,采用邻域搜索算子增加遗传算法的局部寻优能力。
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The traditional query tree optimization methods,parallel database optimization methods based on left linear trees and right linear trees,bushy trees,and operation of the forest,have their own pros and cons,they have been more in-depth and maturity of the study.The query optimization method based on multiple weighted tree has studied its model of parallel query plan,its complexity model of parallel query plan and query optimization algorithms.The semantic query method transforms an inquiry into one or several semantic equivalence inquiries then has to find and implement a strategy to achieve a better query.Agent-based parallel database query optimization using Multi-Agent technology to automatically search the integrity constraint conditions which are related to the determined query,there for,the efficiency between several relations' joins has been greatly improved.The parallel optimization algorithm,based on genetic algorithm which is suitable for multi-joins of cluster environment,has deeply studied the relations storage options,multi-joins query optimization and query processing and other key technologies based on cluster parallel database.
传统的查询树优化方法,即基于左线性树、右线性树、浓密树、操作森林的并行数据库查询优化方法,各有优劣,对其的研究比较深入、成熟;基于多重加权树的查询优化方法,研究了其并行查询计划模型、并行查询计划的复杂性模型和查询优化算法;语义查询优化方法将一个查询变换成一个或数个语义等价的查询,进而寻找并执行这些等价查询中具有较好实现策略的一个;基于Agent的并行数据库查询优化采用Multi-Agent技术自动查找与给定查询有关的完整性约束条件,使得多个关系间连接操作的效率得到很大的提高;基于遗传算法的并行优化算法,深入研究了基于机群并行数据库中关系存储的选择、多连接查询优化和查询处理等关键技术。
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With the guide of non-linear program theory, by using interpolative steps and inexact line search, an improved conjugate gradient method was found, by which the training rate of BP networks increases by tens or hundreds of times. Moreover, the improved method is effective to solve non-linear equations for which Newton's method does not converge owing to the problems of the quadratic derivative and inverse matrix.
通过大量的数值模拟试验发现,在非线性规划理论的指导下采用间插步骤和不精确的一维搜索技术改进的共轭梯度法,是基于梯度和共轭方向的连续搜索算法中最有效的算法,这种算法使BP网络的训练速度提高几十到几百倍,使BP网络的实际应用效果大为改善;而且这种算法对于用牛顿法由于求二阶导数和求逆矩阵等问题难于收敛的非线性方程组的求解也是很有效的。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。