全文获取类型
收费全文 | 559篇 |
免费 | 31篇 |
专业分类
管理学 | 77篇 |
民族学 | 6篇 |
人口学 | 16篇 |
丛书文集 | 32篇 |
理论方法论 | 3篇 |
综合类 | 96篇 |
社会学 | 12篇 |
统计学 | 348篇 |
出版年
2023年 | 1篇 |
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 8篇 |
2019年 | 11篇 |
2018年 | 17篇 |
2017年 | 24篇 |
2016年 | 9篇 |
2015年 | 16篇 |
2014年 | 23篇 |
2013年 | 125篇 |
2012年 | 65篇 |
2011年 | 32篇 |
2010年 | 14篇 |
2009年 | 18篇 |
2008年 | 23篇 |
2007年 | 14篇 |
2006年 | 20篇 |
2005年 | 13篇 |
2004年 | 22篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 13篇 |
2000年 | 10篇 |
1999年 | 7篇 |
1998年 | 11篇 |
1997年 | 5篇 |
1996年 | 2篇 |
1995年 | 5篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 7篇 |
1991年 | 4篇 |
1990年 | 4篇 |
1988年 | 5篇 |
1986年 | 1篇 |
1984年 | 2篇 |
1983年 | 3篇 |
1982年 | 6篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
排序方式: 共有590条查询结果,搜索用时 0 毫秒
81.
刘继春 《北华大学学报(社会科学版)》1995,(1)
本文将[3」中对一维情况的分布函数的尾等价定义推广到多维情况,得到两个多维尾等价的分布函数属于同一最大值吸引场的结论。 相似文献
82.
Let X be a discrete random variable the set of possible values (finite or infinite) of which can be arranged as an increasing sequence of real numbers a1<a2<a3<…. In particular, ai could be equal to i for all i. Let X1n≦X2n≦?≦Xnn denote the order statistics in a random sample of size n drawn from the distribution of X, where n is a fixed integer ≧2. Then, we show that for some arbitrary fixed k(2≦k≦n), independence of the event {Xkn=X1n} and X1n is equivalent to X being either degenerate or geometric. We also show that the montonicity in i of P{Xkn = X1n | X1n = ai} is equivalent to X having the IFR (DFR) property. Let ai = i and . We prove that the independence of {X2n ? X1n ∈B} and X1n for all i is equivalent to X being geometric, where B = {m} (B = {m,m+1,…}), provided G(i) = qi?1, 1≦i≦m+2 (1≦i≦m+1), where 0<q<1. 相似文献
83.
Let Xi≤?≤Xm and Yi≤?≤Yn be two sets of independent order statistics from continous distributions with distribution functions F and G respectively. Let Ri denote the rank of Xi in the combined order sample. Steck (1980) has found an expression for P(bi≤Ri≤ai, all i) when F = h(G), h being the incomplete beta function with parameters (α,β?α+1). An alternative expression for the same probability is obtained which is computationally a substantial improvement on Steck's result. 相似文献
84.
Collective and Unitary Models: A Clarification 总被引:3,自引:0,他引:3
Martin Browning Pierre-André Chiappori Valérie Lechene 《Review of Economics of the Household》2006,4(1):5-14
In this note we identify and clarify a confusion that has arisen in the literature about the exact relationship between unitary
and collective models and what enters the Pareto weight and the sharing function. We suggest that we should denote as ‘unitary’
any model that leads to outcomes that satisfy the Slutsky conditions whether or not these outcomes depend on distribution
factors. In particular, income pooling is neither necessary nor sufficient for a unitary model. We also show that the presence
of prices or total expenditure in the sharing rule cannot be used as a test for a unitary model.
相似文献
Valérie LecheneEmail: |
85.
壮族天琴源流探微——壮族天琴文化研究之二 总被引:1,自引:1,他引:0
通过对文献和田野调查资料的分析,初步认为:壮族天琴发源于广西龙州县金龙镇(古为金龙峒),源自当地原住民族壮族布傣族群在祭祀活动中使用的礼器或法器"叮鼎",其早期历史可以追溯到距今两千多年以前的战国至汉代的骆越人。宋至清代流传至凭祥、宁明、防城等地,中法战争后流传到与广西相邻的越南地区。 相似文献
86.
Heng Lian 《统计学通讯:理论与方法》2013,42(11):1893-1900
We extend the approach of Walker (2003); (2004) to the case of misspecified models. A sufficient condition for establishing rates of convergence is given based on a key identity involving martingales, which does not require construction of tests. We also show roughly that the result obtained by using tests can also be obtained by our approach, which demonstrates the potential wider applicability of this method. 相似文献
87.
P. N. Gavriliadis 《统计学通讯:理论与方法》2013,42(5):671-681
How much information does a small number of moments carry about the unknown distribution function? Is it possible to explicitly obtain from these moments some useful information, e.g., about the support, the modality, the general shape, or the tails of a distribution, without going into a detailed numerical solution of the moment problem? In this paper a theoretical result of Johnson and Rogers is generalized to be valid for all moment problems and is exploited to demonstrate that a few moments are able to provide us with valuable information about the position of the mode of an unknown (unimodal) distribution. 相似文献
88.
A variety of statistical regression models have been proposed for the comparison of ROC curves for different markers across covariate groups. Pepe developed parametric models for the ROC curve that induce a semiparametric model for the market distributions to relax the strong assumptions in fully parametric models. We investigate the analysis of the power ROC curve using these ROC-GLM models compared to the parametric exponential model and the estimating equations derived from the usual partial likelihood methods in time-to-event analyses. In exploring the robustness to violations of distributional assumptions, we find that the ROC-GLM provides an extra measure of robustness. 相似文献
89.
A number of goodness-of-fit and model selection procedures related to the Weibull distribution are reviewed. These procedures include probability plotting, correlation type goodness-of-fit tests, and chi-square goodness-of-fit tests. Also the Kolmogorow-Smirniv, Kuiper, and Cramer-Von Mises test statistics for completely specified hypothesis based on censored data are reviewed, and these test statistics based on complete samples for the unspecified parameters case are considered. Goodness-of-fit tests based on sample spacings, and a goodness-of-fit test for the Weibull process, is also discussed. Model selection procedures for selecting between a Weibull and gamma model, a Weibull and lognormal model, and for selecting from among all three models are considered. Also tests of exponential versus Weibull and Weibull versus generalized gamma are mentioned. 相似文献
90.
M. S. Aminzadeh 《统计学通讯:理论与方法》2013,42(5):923-935
Variable sampling plans to control fraction defective are obtained using the Inverse-Gaussian (IG) distribution. OC curves are obtained and impact of sample size and specification limits on these curves are discussed. Simulation studies are used to investigate sensitivity of the sampling plans under the more commonly used normal distribution. 相似文献