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排序方式: 共有516条查询结果,搜索用时 15 毫秒
1.
《Australian & New Zealand Journal of Statistics》2002,44(4):505-506
Books reviewed:
M Hollander and D Wolfe, Nonparametric Statistical Methods
T Leonard and J.S.J Hsu, Bayesian Methods 相似文献
M Hollander and D Wolfe, Nonparametric Statistical Methods
T Leonard and J.S.J Hsu, Bayesian Methods 相似文献
2.
Jianqing Fan 《Revue canadienne de statistique》1992,20(2):155-169
Nonparametric deconvolution problems require one to recover an unknown density when the data are contaminated with errors. Optimal global rates of convergence are found under the weighted Lp-loss (1 ≤ p ≤ ∞). It appears that the optimal rates of convergence are extremely low for supersmooth error distributions. To resolve this difficulty, we examine how high the noise level can be for deconvolution to be feasible, and for the deconvolution estimate to be as good as the ordinary density estimate. It is shown that if the noise level is not too high, nonparametric Gaussian deconvolution can still be practical. Several simulation studies are also presented. 相似文献
3.
汉末男性诗人以女性为情感载体来抒写自我生命痛苦的写作用意,应与他们的处境和心态密切相关。在混乱的政局中经历了期盼、失望、绝望的心路历程之后,他们的心态发生了很大变化,具有与女性心理同构的新特点。这恰恰彰显了汉末男性诗人摆脱心灵困境时的自我突围意识。 相似文献
4.
Summary The paper deals with missing data and forecasting problems in multivariate time series making use of the Common Components
Dynamic Linear Model (DLMCC), presented in Quintana (1985), and West and Harrison (1989).
Some results are presented and discussed: exploiting the correlation between series, estimated by the DLMCC, the paper shows
as it is possible to update state vector posterior distributions for the unobserved series. This is realized on the base of
the updating of the observed series state vectors, for which the usual Kalman filter equations can be applied.
An application concerning some Italian private consumption series provides an example of the model capabilities. 相似文献
5.
本文通过参试杂交水稻10个性状的方差分析和不育系、恢复系一般配合力、特殊配合力估算及配合力总效应值比较,分析了新恢复系绵恢501、绵恢502与明恢63的异同,结果表明,三个恢复系虽然在多数性状上存在着显著差异,但由于它们各自在产量三要素:穗、粒、重上的性状互补,反应在单株粒重上,三者之间差异甚小,结实率、单株粒重的一般配合力效应值和配合力总效应值,三个恢复系非常按近,表明它们具有相似的恢复力和生产潜力。 相似文献
6.
Nowadays airborne laser scanning is used in many territorial studies, providing point data which may contain strong discontinuities. Motivated by the need to interpolate such data and preserve their edges, this paper considers robust nonparametric smoothers. These estimators, when implemented with bounded loss functions, have suitable jump‐preserving properties. Iterative algorithms are developed here, and are equivalent to nonlinear M‐smoothers, but have the advantage of resembling the linear Kernel regression. The selection of their coefficients is carried out by combining cross‐validation and robust‐tuning techniques. Two real case studies and a simulation experiment confirm the validity of the method; in particular, the performance in building recognition is excellent. 相似文献
7.
我国商标注册申请的审查与注册商标的无效宣告是否需要以混淆可能性作为驳回申请或者无效宣告的判断标准是一个值得讨论的问题。在商标授权确权问题上,虽然相关法律并未明确规定混淆可能性要件,但从商标注册、商标使用与侵权救济制度的一致性、商标法精神与立法宗旨的角度考量,应当坚持混淆可能性标准。我国商标授权确权行政审查与司法实践也在遵循这一思路。在混淆可能性判断时,应当借鉴司法解释提出的混淆可能性作为参考因素,坚持个案判断。 相似文献
8.
《Journal of Statistical Computation and Simulation》2012,82(1):96-106
In this paper, we establish the existence and uniqueness of the maximum-likelihood estimates of the parameters of a general class of inverse exponentiated distributions based on complete as well as progressively Type-I and Type-II censored data. 相似文献
9.
《Journal of Statistical Computation and Simulation》2012,82(12):2545-2556
Binary response models are often applied in dose–response settings where the number of dose levels is limited. Commonly, one can find cases where the maximum likelihood estimation process for these models produces infinite values for at least one of the parameters, often corresponding to the ‘separated data’ issue. Algorithms for detecting such data have been proposed, but are usually incorporated directly into in the parameter estimation. Additionally, they do not consider the use of asymptotes in the model formulation. In order to study this phenomenon in greater detail, we define the class of specifiably degenerate functions where this can occur (including the popular logistic and Weibull models) that allows for asymptotes in the dose–response specification. We demonstrate for this class that the well-known pool-adjacent-violators algorithm can efficiently pre-screen for non-estimable data. A simulation study demonstrates the frequency with which this problem can occur for various response models and conditions. 相似文献
10.
《统计学通讯:模拟与计算》2012,41(6):688-709
We begin by definition of semi-Markov flow and discussion of its properties. Asymptotic behavior of multi-server and single-server queueing systems is studied under assumption of time-compression or service time growth. The results obtained are used for calculation of large systems reliability. Statistical estimates of parameters involved are also provided. 相似文献