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In this paper we proposed an improved method which changes the definition of the 4-neighborhood model. we call it side neighborhood minimum absolute weight prediction tree technique. lt can simplify the algorithm and improve the results of lossless compression.

本文对预测树方法进行改进,提出一种侧邻域最小绝对权值预测树方法,通过改变预测树的四邻域定义,使构造预测树的算法简化,并且,实验结果表明,对不同类型的多光谱遥感图像,SNMAW的压缩效果与MAW的压缩效果相近或有所改善。

Recursion formulas for quantities at infinity in this system were presented.

同时,计算了一类三次系统的前6个赤道环量,得到了系统在赤道邻域的可积性条件及在赤道附近存在5个极限环的系数条件,给出了一个平面三次系统在赤道附近分支出5个极限环的计算实例,并在不构造Poincare环域的情况下,指出了极限环存在的位置。

A sufficient and necessary condition for nonlinear continuous time associate memory neural networks to be locally exponentially stable is obtained, and a function is defined for characterizing the domain of attraction of equilibrium point.

讨论非线性连续联想记忆神经网络平衡点局部指数稳定的判定条件及平衡点指数吸引域的估计,得到了平衡点局部指数稳定的充要条件,并引入一个特征函数,可以判定平衡点的邻域是否为指数吸引域。

A sufficient and necessary condition for nonlinear continuous-time associate memory neural networks to be locally exponentially stable is obtained, and a unction is defined for characterizing the domain of attraction of equilibrium point.

摘要讨论非线性连续联想记忆神经网络平衡点局部指数稳定的判定条件及平衡点指数吸引域的估计,得到了平衡点局部指数稳定的充要条件,并引入一个特征函数,可以判定平衡点的邻域是否为指数吸引域。

Basing on the neighborhood system of MARKOV random field and the potential function,we build a soft constrained mode to overcome the shortage of the force constraints,and we extend well constrained data to well-cross.

基于马尔柯夫随机域的邻域系统及势函数构建一种软性约束模式,将井眼约束信息外推到井间,避免过往强制约束的不足。

A modified differential evolution algorithm was presented. In the proposed algorithm, the difference vector, which is employed in mutating each individual by simple differential evolution algorithm, was recorded. Each mutated individual was taken as the center of a neighborhood, the corresponding difference vector as radius.

提出了一种改进的差分演化算法,该算法记录下了差分演化算法在对每个个体进行变异操作时的差向量,然后以被变异的个体作为邻域的中心,以所记录的差向量作为邻域的半径,再在这个邻域内进行一次挖掘式的搜索。

The optimal thresholds and neighboring window sizes are determined for every subband in the wavelet domain using Stein's unbiased risk estimate, and NeighShrink is also extended from orthogonal wavelet transforms to dual-tree complex wavelet transforms in this paper.

该文运用Stein的无偏风险估计,在小波域每一个子带为NeighShrink方法确定一个最优的阈值和邻域窗口,并将NeighShrink方法从正交的小波变换推广到对偶树复数小波变换。

This form of speciation occurs where the speciating populations are contiguous but subject to different environmental e.g.

邻域性物种形成邻域性物种形成发生在分布区相邻,但分布区内不同地点环境条件不同的种群。

Parapatric speciation This form of speciation occurs where the speciating populations are contiguous but subject to different environmental e.g.

邻域性物种形成邻域性物种形成发生在分布区相邻,但分布区内不同地点环境条件不同的种群。

Therefore, this paper presented a more robust and more topologically stable ISOMAP algorithm, i.

为此,根据最小连通邻域图能有效避免&短路&边的特点,提出了一种能有效删除&短路&边因而更具鲁棒性和拓扑稳定性的ISOMAP算法-基于最小连通邻域图的ISOMAP (MCNC-ISOMAP)算法。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。