| 1. | Estimation of scale parameter under a symmetric loss function 一种对称损失函数下刻度参数的最优同变估计 |
| 2. | Estimation of scale parameter of the normal distribution under a symmetric loss function 一种对称损失函数下正态总体刻度参数的估计 |
| 3. | Estimation of scale parameter of normal distribution under q - symmetric entropy loss function 对称熵损失函数下正态总体刻度参数的估计 |
| 4. | Confidence interval for scale parameter of normal distribution from incomplete observational data 正态分布尺度参数基于残缺观测数据的置信区间 |
| 5. | Minimax estimation in scale parameter families as the parameter interval being bounded under squared loss function 平方损失下区间有界的尺度函数极小极大估计 |
| 6. | Entropy is applied to find the proper wavelet scale parameter , with which the analysis results are more precise than with other parameters 本文首次把“信息熵”引如电压暂降的检测工作中,用于寻找最优的小波尺度,使检测结果更加准确。 |
| 7. | Based on the laplacian distribution model of dct coefficients , we deduce a theoretical relationship between the scaling parameter in some typical watermarking algorithms and the degradation of watermarked images 研究了图象信息隐藏技术中普遍关注的几个典型性能的定量评估方法,得到了相应的隐藏算法参数调节策略和攻击规避准测。 |
| 8. | We proposed an improved simulated annealing algorithm with neighbor function based on self - optimization of scale parameter . furthermore incorporating disaster - modification and the improved annealing into genetic algorithm , an improved genetic - annealing algorithm is proposed . in order to solve the deceptive minimum problem , an improved evolutionary strategy combined with similarity detection and improved mutation operator 提出了邻域尺度函数自寻优的模拟褪火算法,结合遗传算法,引入灾变算子,提出了改进遗传模拟褪火算法;为了解决寻优过程中的最小欺骗问题,我们提出了相似性检测,结合改进的适应值无关变异算子,提出了基于相似性检测和适应值无关变异算子的进化策略算法。 |
| 9. | We find that fitness of returns on stocks to non - normal stable distributions in china stock market is very good by fitness test ; study measurements of return and risk of a portfolio conditional on non - normal stable distributions and put forward mean - scale parameter model ; find that mean - scale parameter model can explain asset allocation puzzle by empirical analysis 通过拟合优度检验发现我国的股票收益率与非正态稳定分布的拟合效果非常好;研究了非正态稳定分布条件下投资组合收益和风险的度量,建立了均值尺度参数投资组合模型;通过实证分析发现均值尺度参数模型能够解释资产配置之谜。 |
| 10. | ( 2 ) in the study of multivariate phenomena , each time variable should possess its own scaling parameter in order to allow maximal flexibility in time - frequency . the notion of multifrequency multifunction wavelets , to be introduced , is based on this point of view . multifrequency wavelets , via directional multiresolution analysis , generated by a single function is extended to multifrequency multifunction wavelets generated by a finite number of functions ( 2 )在研究多变量问题时,为了使时频分析具有最大的灵活性,要求每个时间变量都有它自己的尺度参数,鉴于此,本文从尺度函数构成正交基或riesz基出发,把一维多函数小波推广到二维多频率多函数小波,解决了构造正交或双正交多频率多函数小波所需要的理论依据。 |