全文获取类型
收费全文 | 3459篇 |
免费 | 76篇 |
国内免费 | 43篇 |
专业分类
管理学 | 491篇 |
民族学 | 2篇 |
人口学 | 19篇 |
丛书文集 | 41篇 |
理论方法论 | 5篇 |
综合类 | 846篇 |
社会学 | 22篇 |
统计学 | 2152篇 |
出版年
2024年 | 7篇 |
2023年 | 19篇 |
2022年 | 42篇 |
2021年 | 28篇 |
2020年 | 51篇 |
2019年 | 99篇 |
2018年 | 105篇 |
2017年 | 192篇 |
2016年 | 105篇 |
2015年 | 91篇 |
2014年 | 113篇 |
2013年 | 756篇 |
2012年 | 262篇 |
2011年 | 121篇 |
2010年 | 125篇 |
2009年 | 111篇 |
2008年 | 154篇 |
2007年 | 146篇 |
2006年 | 137篇 |
2005年 | 133篇 |
2004年 | 114篇 |
2003年 | 88篇 |
2002年 | 67篇 |
2001年 | 66篇 |
2000年 | 79篇 |
1999年 | 70篇 |
1998年 | 53篇 |
1997年 | 36篇 |
1996年 | 40篇 |
1995年 | 28篇 |
1994年 | 21篇 |
1993年 | 12篇 |
1992年 | 25篇 |
1991年 | 11篇 |
1990年 | 11篇 |
1989年 | 13篇 |
1988年 | 12篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 3篇 |
1983年 | 5篇 |
1981年 | 5篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
排序方式: 共有3578条查询结果,搜索用时 1 毫秒
131.
Hoben Thomas & Thomas P. Hettmansperger 《Journal of the Royal Statistical Society. Series C, Applied statistics》2001,50(4):435-448
Psychological theories often posit the existence of several different states. Individuals are viewed as belonging to one of the states at a given age, but with development pass to another state. A main problem in evaluating such theories is representing the transition from one state to another over age. A stochastic transition framework is proposed which should be useful in many different settings. The model is illustrated with data from a cognitive development task. 相似文献
132.
《Journal of Statistical Computation and Simulation》2012,82(12):2362-2378
ABSTRACTThe class of bivariate copulas that are invariant under truncation with respect to one variable is considered. A simulation algorithm for the members of the class and a novel construction method are presented. Moreover, inspired by a stochastic interpretation of the members of such a class, a procedure is suggested to check whether the dependence structure of a given data set is truncation invariant. The overall performance of the procedure has been illustrated on both simulated and real data. 相似文献
133.
ABDOLLAH JALILIAN YONGTAO GUAN RASMUS WAAGEPETERSEN 《Scandinavian Journal of Statistics》2013,40(1):119-137
Abstract. Spatial Cox point processes is a natural framework for quantifying the various sources of variation governing the spatial distribution of rain forest trees. We introduce a general criterion for variance decomposition for spatial Cox processes and apply it to specific Cox process models with additive or log linear random intensity functions. We moreover consider a new and flexible class of pair correlation function models given in terms of normal variance mixture covariance functions. The proposed methodology is applied to point pattern data sets of locations of tropical rain forest trees. 相似文献
134.
Thomas J. Lorenzen 《统计学通讯:模拟与计算》2013,42(4):291-309
One method of controlling the quality of incoming lots is through attribute sampling. To simultaneously control several (possibly dependent) attributes, properly chosen single attribute sampling plans can be merged into a multiple attribute sampling plan. The general form of such a plan is given and various alternatives are discussed. The multinomial distribution is used to develop formulae necessary for an analysis of a multiple attribute plan. Due to the lengthy nature of the calculations involved, a computer algorithm is outlined. 相似文献
135.
ABSTRACTConditional tests are constructed by conditioning a fit measure to a minimal sufficient statistic. To calculate the p-value of these tests, Monte Carlo methods with co-sufficient samples can be used. In this paper we show how to simulate co-sufficient samples when the data distribution belongs to the exponential family with doubly transitive sufficient statistics. The proposed method is illustrated using the beta distribution. 相似文献
136.
Sally Mcclean Colum Devine 《统计学通讯:理论与方法》2013,42(11):2439-2457
In manpower planning it is cornmoniy tue case tnat employees withuraw from active service for a period of time before returning to take up post at a later date. Such periods of absence are frequently of major concern to employers who are anxious to ensure that employees return as soon as possible. The distribution of duration of such periods of absence are therefore of considerable interest as is the probability that such employees will ever return to active service. In this paper we derive a nonparametric estimator for such a lifetime distribution based on renewal data which are subject to various forms of incompleteness, namely right censoring, left and right truncation, and forward recurrence. Artificial truncation is used to ensure that the data are time homogeneous. A nonparametric maximum likelihood estimator for the lifetime. 相似文献
137.
Heng Lian 《统计学通讯:理论与方法》2013,42(3):419-430
ABSTRACT In the case of the random design nonparametric regression, the double smoothing technique is applied to estimate the multivariate regression function. The proposed estimator has desirable properties in both the finite sample and the asymptotic cases. In the finite sample case, it has bounded conditional (and unconditional) bias and variance. On the other hand, in the asymptotic case, it has the same mean square error as the local linear estimator in Fan (Design-Adaptive Nonparametric Regression. Journal of the American Statistical Association 1992, 87, 998–1004; Local Linear Regression Smoothers and Their Minimax Efficiencies. Annals of Statistics 1993, 21, 196–216). Simulation studies demonstrate that the proposed estimator is better than the local linear estimator, because it has a smaller sample mean integrated square error and gives smoother estimates. 相似文献
138.
Harry Joe 《统计学通讯:理论与方法》2013,42(11):3677-3685
Theorerms are proved for the maxima and minima of IIRi!/IICj!/T!IIyij ! over r× c contingcncy tables Y=(yij) with row sums R1,…,Rr, column sums C1,…,Cc, and grand total T. These results are imlplemented into the network algorithm of Mehta and Patel (1983) for computing the P-value of Fisher's exact test for unordered r×c contingency tables. The decrease in the amount of computing time can be substantial when the column sums are very different. 相似文献
139.
Good estimation of the slopes of the mixture response function may be important as well as estimation of mean mixture response. It is possible to evaluate and compare several mixture designs with respect to the slope. A graphical method is proposed that allows us to evaluate a given design's support for the fitted model in terms of slope variance. We can plot variances of slopes along Cox direction or axial direction according to existence of restriction of simplex region or not when comparing several different mixture designs. 相似文献
140.
Given k( ? 3) independent normal populations with unknown means and unknown and unequal variances, a single-stage sampling procedure to select the best t out of k populations is proposed and the procedure is completely independent of the unknown means and the unknown variances. For various combinations of k and probability requirement, tables of procedure parameters are provided for practitioners. 相似文献