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91.
92.
M.S. Srivastava 《统计学通讯:理论与方法》2013,42(13):1481-1497
In this paper the non-null distribution of Hotelling's T2 and the null distribution of multiple correlation R2 are derived when the sample is taken from a mixture of two p-component multivariate normal distributions with mean vectors μ1 and μ2 respectively and common covariance matrix ∑, ∑. In a special case the non-null distribution of R2 is a l s o given, while the general noncentral distribution is given i n Awan (1981). These results have been used to study the robustness of T2 and R2 tests by Srivastava and Awan (1982), and Awan and Srivastava (1982) respectively. 相似文献
93.
Jaya Srivastava 《统计学通讯:理论与方法》2013,42(10):2901-2941
This paper breaks new ground concerning the general problem of factorial experimentation, namely, the identification and estimation of nonnegligible factorial effects (with minimal number of runs), without making the usual unrealistic and artificial assumptions concerning the negligibility of higher order interactions. (In other words, we consider the general factor screening problem when interactions may be present.) Through an example, it is shown that the customary orthogonal arrays fall short of the need. New principles for sieving the set of factorial effects to determine the large ones, are introduced. The concept of ‘revealing power’of designs, i.e. of their ability to help identify nonnegligible parameters is developed, and the usefulness in this direction of balanced arrays of full strength is studied. 相似文献
94.
This article presents a comparative study of the efficiency properties of the coefficient of determination and its adjusted version in linear regression models when disturbances are not necessarily normal. 相似文献
95.
Strawderman's family of regression estimators is considered. The choice of the scalars wbich characterize the biasing parameter is studied by obtaining the bias vector and the mean squared error matrix. 相似文献
96.
Adita Singh Chetan B. Singai Shilpi Srivastava Sumathi Sivam 《Transition Studies Review》2009,16(2):598-608
Efficient water management has emerged as a critical challenge of environmental protection and human security in the twenty-first
century. Lack of water management affects the hydrological cycle of the earth, leading to a major influence on the livelihood
of the people. This paper reviews the enhanced role of IWRM in water management. It discusses the functioning of Integrated
Water Resource Management (IWRM) as a global approach to overcome the challenge(s) regarding the efficient management of water.
Further, the paper argues for ‘inclusive water governance’ developed at the local level as against IWRM developed at the global
level. The paper emphasizes on the approach of inclusive water governance as a practical solution to address the water management
crisis in India, in particular, and developing countries, in general. Inclusive water governance is sensitive to equitable
access to water, as a human right, and also to sustainability of water, as an important resource.
相似文献
Sumathi SivamEmail: |
97.
In a seemingly unrelated regression equation model, the feasible generalized least squares estimators are used for estimating the coefficients. In this paper, the standard errors associated with these estimators are obtained. 相似文献
98.
For estimating the coefficients in a linear regression model, the double k–class estimators are considered and the small disturbance asymptotic approximation for their density function is obtained. Then employing the criterion of concentration probability around the true parameter values, a comparison is made between the estimators possessing finite moments and the estimators having no finite moments. 相似文献
99.
Let Rj be the jth upper record value from an infinite sequence of independent identically distributed positive integer valued random variables. We show that their common distribution must have geometric tail if Rj+k?Rj and Rj are partially independent for some j≥1 and k≥1 or if E(Rj+2?Rj+1| Rj) is a constant. Three versions of partial independence, each of which provides a characterization of the geometric tail are presented. 相似文献
100.
This article considers a linear regression model in which misspecification relates to the use of a stochastic proxy variable.
The analysis indicates the decline in efficiency of the predictions arising from the ordinary least squares and the Stein-rule
estimation procedures when a proxy variable is used in the place of an unobservable variable. However, the performance of
the Stein-rule predictions is still found to be better than the ordinary least squares predictions over a broad range of k,
the characterizing scalar of the Stein-rule estimator. 相似文献