全文获取类型
收费全文 | 2795篇 |
免费 | 66篇 |
国内免费 | 18篇 |
专业分类
管理学 | 134篇 |
民族学 | 6篇 |
人才学 | 2篇 |
人口学 | 19篇 |
丛书文集 | 82篇 |
理论方法论 | 26篇 |
综合类 | 706篇 |
社会学 | 22篇 |
统计学 | 1882篇 |
出版年
2024年 | 1篇 |
2023年 | 14篇 |
2022年 | 5篇 |
2021年 | 26篇 |
2020年 | 33篇 |
2019年 | 72篇 |
2018年 | 77篇 |
2017年 | 159篇 |
2016年 | 82篇 |
2015年 | 86篇 |
2014年 | 88篇 |
2013年 | 672篇 |
2012年 | 189篇 |
2011年 | 120篇 |
2010年 | 85篇 |
2009年 | 88篇 |
2008年 | 107篇 |
2007年 | 94篇 |
2006年 | 91篇 |
2005年 | 102篇 |
2004年 | 75篇 |
2003年 | 73篇 |
2002年 | 88篇 |
2001年 | 73篇 |
2000年 | 57篇 |
1999年 | 53篇 |
1998年 | 41篇 |
1997年 | 32篇 |
1996年 | 27篇 |
1995年 | 28篇 |
1994年 | 25篇 |
1993年 | 18篇 |
1992年 | 20篇 |
1991年 | 13篇 |
1990年 | 9篇 |
1989年 | 7篇 |
1988年 | 6篇 |
1987年 | 7篇 |
1986年 | 4篇 |
1985年 | 4篇 |
1984年 | 8篇 |
1983年 | 7篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 4篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有2879条查询结果,搜索用时 15 毫秒
971.
The general approach to generating random variates through transformations with multiple roots is discussed. Multinomial probabilities are determined for the selection of the different roots. An application of the general result yields a new and simple technique for the generation of variates from the inverse Gaussian distribution. 相似文献
972.
Walter F. Ryan 《The American statistician》2013,67(2):122-123
In this article, the corrected F statistic in the general linear model is shown to be algebraically equivalent to the corresponding statistic in the weighted least squares procedure, whenever the corrected F statistic exists. Hence, weighted least squares analysis is, in effect, a self-corrected F test procedure. 相似文献
973.
974.
In this paper, we present the asymptotic properties of maximum quasi-likelihood estimators (MQLEs) in generalized linear models with adaptive designs under some mild regular conditions. The existence of MQLEs in quasi-likelihood equation is discussed. The rate of convergence and asymptotic normality of MQLEs are also established. The results are illustrated by Monte-Carlo simulations. 相似文献
975.
Sarjinder Singh 《Statistics》2013,47(3):566-574
In this note, a dual problem to the calibration of design weights of the Deville and Särndal [Calibration estimators in survey sampling, J. Amer. Statist. Assoc. 87 (1992), pp. 376–382] method has been considered. We conclude that the chi-squared distance between the design weights and the calibrated weights equals the square of the standardized Z-score obtained by the difference between the known population total of the auxiliary variable and its corresponding Horvitz and Thompson [A generalization of sampling without replacement from a finite universe, J. Amer. Statist. Assoc. 47 (1952), pp. 663–685] estimator divided by the sample standard deviation of the auxiliary variable to obtain the linear regression estimator in survey sampling. 相似文献
976.
A regression model with a possible structural change and with a small number of measurements is considered. A priori information about the shape of the regression function is used to formulate the model as a linear regression model with inequality constraints and a likelihood ratio test for the presence of a change-point is constructed. The exact null distribution of the test statistic is given. Consistency of the test is proved when the noise level goes to zero. Numerical approximations to the powers against various alternatives are given and compared with the powers of the k-linear-r-ahead recursive residuals tests and CUSUM tests. Performance of four different estimators of the change-point is studied in a Monte Carlo experiment. An application of the procedures to some real data is also presented. 相似文献
977.
978.
979.
Damian Brzyski Marta Karas Beau M Ances Mario Dzemidzic Joaquín Goi Timothy W Randolph Jaroslaw Harezlak 《Revue canadienne de statistique》2021,49(1):203-227
One of the challenging problems in neuroimaging is the principled incorporation of information from different imaging modalities. Data from each modality are frequently analyzed separately using, for instance, dimensionality reduction techniques, which result in a loss of mutual information. We propose a novel regularization method, generalized ridgified Partially Empirical Eigenvectors for Regression (griPEER), to estimate associations between the brain structure features and a scalar outcome within the generalized linear regression framework. griPEER improves the regression coefficient estimation by providing a principled approach to use external information from the structural brain connectivity. Specifically, we incorporate a penalty term, derived from the structural connectivity Laplacian matrix, in the penalized generalized linear regression. In this work, we address both theoretical and computational issues and demonstrate the robustness of our method despite incomplete information about the structural brain connectivity. In addition, we also provide a significance testing procedure for performing inference on the estimated coefficients. Finally, griPEER is evaluated both in extensive simulation studies and using clinical data to classify HIV+ and HIV? individuals. 相似文献
980.
A three-tiered hierarchical production plan (HPP) for a strictly make-to-order steel fabrication plant with the objective of developing a production plan and master schedule for a set of product archetypes is implemented. Data are collected from an actual steel fabrication plant located in the Midwestern section of the US. An aggregate linear programming model, a non-linear disaggregate model and a master production schedule comprise the respective tiers. Appropriate models provide the forecasts needed in the first two tiers. A production plan and master schedule based on data collected at the plant, benefits expected for its implementation and practical limitations are reported. 相似文献