全文获取类型
收费全文 | 692篇 |
免费 | 22篇 |
国内免费 | 1篇 |
专业分类
管理学 | 41篇 |
民族学 | 1篇 |
人口学 | 5篇 |
丛书文集 | 19篇 |
理论方法论 | 27篇 |
综合类 | 118篇 |
社会学 | 14篇 |
统计学 | 490篇 |
出版年
2023年 | 9篇 |
2022年 | 3篇 |
2021年 | 6篇 |
2020年 | 18篇 |
2019年 | 27篇 |
2018年 | 25篇 |
2017年 | 38篇 |
2016年 | 18篇 |
2015年 | 20篇 |
2014年 | 30篇 |
2013年 | 187篇 |
2012年 | 37篇 |
2011年 | 21篇 |
2010年 | 16篇 |
2009年 | 21篇 |
2008年 | 19篇 |
2007年 | 29篇 |
2006年 | 22篇 |
2005年 | 23篇 |
2004年 | 27篇 |
2003年 | 14篇 |
2002年 | 16篇 |
2001年 | 10篇 |
2000年 | 18篇 |
1999年 | 3篇 |
1998年 | 6篇 |
1997年 | 9篇 |
1996年 | 5篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 3篇 |
1986年 | 1篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 2篇 |
排序方式: 共有715条查询结果,搜索用时 328 毫秒
41.
Expected Utility Consistent Extensions of Preferences 总被引:1,自引:1,他引:0
We consider the problem of extending a (complete) order over a set to its power set. The extension axioms we consider generate
orderings over sets according to their expected utilities induced by some assignment of utilities over alternatives and probability
distributions over sets. The model we propose gives a general and unified exposition of expected utility consistent extensions
whilst it allows to emphasize various subtleties, the effects of which seem to be underestimated – particularly in the literature
on strategy-proof social choice correspondences.
相似文献
42.
We give a critical synopsis of classical and recent tests for Poissonity, our emphasis being on procedures which are consistent against general alternatives. Two classes of weighted Cramér–von Mises type test statistics, based on the empirical probability generating function process, are studied in more detail. Both of them generalize already known test statistics by introducing a weighting parameter, thus providing more flexibility with regard to power against specific alternatives. In both cases, we prove convergence in distribution of the statistics under the null hypothesis in the setting of a triangular array of rowwise independent and identically distributed random variables as well as consistency of the corresponding test against general alternatives. Therefore, a sound theoretical basis is provided for the parametric bootstrap procedure, which is applied to obtain critical values in a large-scale simulation study. Each of the tests considered in this study, when implemented via the parametric bootstrap method, maintains a nominal level of significance very closely, even for small sample sizes. The procedures are applied to four well-known data sets. 相似文献
43.
A system of predictors for estimating a finite population variance is defined and shown to be asymptotically design-unbiased (ADU) and asymptotically design-consistent (ADC) under probability sampling. An asymptotic mean squared error (MSE) of a generalized regression-type predictor, generated from the system, is obtained. The suggested predictor attains the minimum expected variance of any design-unbiased estimator when the superpopulation model is correct. The generalized regression-type predictor and the predictor suggested by Mukhopadhyay (1990) are compared. 相似文献
44.
Lars Korsholm 《Scandinavian Journal of Statistics》2000,27(2):227-261
We study the normal variance-mean mixture model from a semiparametric point of view, i.e. we let the mixing distribution belong to a non-parametric family. The main results are consistency of the non-parametric maximum likelihood estimator and construction of an asymptotically normal and efficient estimator for the Euclidian part of the parameter. We study the model according to the theory outlined in the monograph by Bickel et al. (1993) and apply a general result (based on the theory of empirical processes) for semiparametric models from van der Vaart (1996) to prove asymptotic normality and efficiency of the proposed estimator. 相似文献
45.
46.
刘梅 《安徽理工大学学报(社会科学版)》2007,9(2):49-53
运用翻译目的论和翻译接受美学等相关理论探讨了经贸外宣资料的翻译目的和译文读者的阅读需求以及两者之间的关系,提出了指导经贸外宣资料翻译的三条原则:即选择适量的信息,文本功能语用对等和概念术语译名统一,并用具体译例论述这些原则在翻译实践的具体运用。 相似文献
47.
We establish weak and strong posterior consistency of Gaussian process priors studied by Lenk [1988. The logistic normal distribution for Bayesian, nonparametric, predictive densities. J. Amer. Statist. Assoc. 83 (402), 509–516] for density estimation. Weak consistency is related to the support of a Gaussian process in the sup-norm topology which is explicitly identified for many covariance kernels. In fact we show that this support is the space of all continuous functions when the usual covariance kernels are chosen and an appropriate prior is used on the smoothing parameters of the covariance kernel. We then show that a large class of Gaussian process priors achieve weak as well as strong posterior consistency (under some regularity conditions) at true densities that are either continuous or piecewise continuous. 相似文献
48.
Luc Devroye 《Revue canadienne de statistique》1989,17(2):235-239
Suppose we have n observations from X = Y + Z, where Z is a noise component with known distribution, and Y has an unknown density f. When the characteristic function of Z is nonzero almost everywhere, we show that it is possible to construct a density estimate fn such that for all f, Iimn| |=0. 相似文献
49.
有效快速的核事故早期应急决策,是核电站发生核事故后最后一道必要的屏障,因此决策的快速性与有效性至关重要。文章先构造效用函数,求出决策者的乐观系数,将决策判断矩阵中的区间值与模糊值精确化;在此基础上建立了个体与群体的决策模型,以提高决策的有效性。同时根据排序结果,构造群体与个体之间一致性判断矩阵,并根据判断矩阵进行交互与修改,使专家内部快速达成一致。最后通过算例说明方法的可行性。 相似文献
50.
In this paper the Jackknife estimate of covariance of two Kaplan–Meier integrals with covariates is introduced. Its strong consistency is established under mild conditions. Several applications of the estimator are discussed. 相似文献