最后，放置组到对象存储设备的映射是一个伪随机映射，使用一个叫做ControlledReplicationUnderScalable Hashing (CRUSH)的算法。
Finally, the mapping of the placement group to object storage devices is a pseudo-random mapping using an algorithm called Controlled Replication Under Scalable Hashing (CRUSH).
外部服务来源，不管它来是自一个不同的用户还是开发者，是来自一个不同的词典还是随机在互联网上发现的某个网页，都能解释映射信息。
An outside source, whether it be a different user or developer, a separate thesaurus, or even a random fact found on someone else's web page, can express mapping information.
这样一来，放置组(以及副本)到存储设备的映射就不用依赖任何元数据，而是依赖一个伪随机的映射函数。
In this way, mapping of placement groups (and replicas) to storage devices does not rely on any metadata but instead on a pseudo-random mapping function.
对经典的遗传算法在计算中出现的随机性问题，则采用压缩映射遗传算法使计算过程渐近收敛。
For the randomness of classical GA which appears in calculation process, the contraction mapping GA is applied to make the calculation asymptotically convergent.
混沌映射因为初值敏感性、参数敏感性、遍历性和类随机性的特点，很适合用于信息加密。
Based on the features of initial value sensitivity, parameter sensitivity, ergodicity and random similarity, chaotic maps are now widely used in information encryption.
使用混沌映射将二进制商标的像素在空间区域中进行随机置乱，然后将置乱的信息分块嵌入在图像的DCT变换系数中。
The chaotic mapping enables the logo pixels rearrange randomly in the specified spatial domain, and the mixed bits of the logo were embedded in the image DCT coefficients.
为了提高雷达信号的分辨率和抗干扰能力，分析了两种基于混沌映射生成随机抽样的方法。
Two methods of generating random samples based on chaotic maps were studied to improve the resolution and Electronic Counter-Counter Measure (ECCM) of radar signals.
由混沌映射驱动得到的伪随机二进制序列应确保有足够的比特安全性。
Sufficient bit security is necessary for pseudorandom binary sequences drived by chaotic maps.
提出了随机结构响应密度演化分析的映射降维算法。
A mapping-based dimension-reduction algorithm for probability density evolution analysis of stochastic structural responses is proposed.
若一个随机模糊事件由定义在可测空间上的映射刻划，则可把已建立的基本公式用于求该事件发生的测度值。
If a fuzzy random event is described by the mapping on the measurable space, its measure value can be calculated by the basic formulations which have been set up.
与传统的分类方法相比，自映射空间方法更好地集成了模糊性和随机性。
Compared with classical induction method, the SMS integrates the fuzziness and randomness of linguistic terms in a better way.
提出了一种用任意分布的模拟随机源对一维分段线性映射的参数进行调制来获得真随机比特的方法。
This paper proposes one method of acquiring truly random bits by means of modulating the parameter of one-dimensional piecewise linear maps by arbitrarily distributed analogue random source.
提出基于随机区域移位和随机像素映射的图像加密算法。
Based on region shifting encoding and pixel mapping, the paper proposes image encryption algorithm.
将截获信号的直观几何特征（星座图）映射到变换域中，可区别不同调制内部的同相正交分量的相对关系，避免了聚类算法受噪声干扰和其他随机因素影响。
The novel feature distinguishes relative distribution between in-phase and quadrature components and lightens the great influence caused by noise and other random factor in clustering algorithm.
该文利用三种不同的混沌映射构建一种随机步长混沌映射。
This paper discusses a new chaotic dynamical system which is random steps chaotic dynamical system.
金融时间序列具有很强的随机性和非线性性，而神经网络具有良好的非线性映射能力及自适应、自学习和良好的泛化能力，因此非常适合处理金融时间序列这样的数据。
Financial time series has high randomicity and nonlinearity. Neural network is quite suitable in the process of financial time series data for its good ability of nonlinear mapping and generalization.
混沌映射所具有的初值敏感性和随机性，使得基于混沌理论的图像加密算法成为一个研究热点。
The initial sensitivity and randomness of the chaotic map make the image encryption algorithm based on chaotic theory become a hot researching field recently.
混沌映射所具有的初值敏感性和随机性，使得基于混沌理论的图像加密算法成为一个研究热点。
The initial sensitivity and randomness of the chaotic map make the image encryption algorithm based on chaotic theory become a hot researching field recently.
应用推荐