全文获取类型
收费全文 | 228篇 |
免费 | 3篇 |
专业分类
管理学 | 36篇 |
人口学 | 12篇 |
丛书文集 | 2篇 |
理论方法论 | 23篇 |
综合类 | 6篇 |
社会学 | 123篇 |
统计学 | 29篇 |
出版年
2023年 | 3篇 |
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 4篇 |
2017年 | 13篇 |
2016年 | 3篇 |
2015年 | 7篇 |
2014年 | 5篇 |
2013年 | 42篇 |
2012年 | 8篇 |
2011年 | 8篇 |
2010年 | 4篇 |
2009年 | 9篇 |
2008年 | 11篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 5篇 |
2004年 | 2篇 |
2003年 | 4篇 |
2002年 | 5篇 |
2001年 | 6篇 |
2000年 | 4篇 |
1999年 | 2篇 |
1998年 | 4篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1993年 | 2篇 |
1992年 | 6篇 |
1991年 | 1篇 |
1990年 | 3篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 5篇 |
1984年 | 4篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 3篇 |
1975年 | 4篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1972年 | 1篇 |
1969年 | 2篇 |
1967年 | 1篇 |
排序方式: 共有231条查询结果,搜索用时 15 毫秒
101.
Eugene Demidenko 《Scandinavian Journal of Statistics》2017,44(3):636-665
The exact density distribution of the non‐linear least squares estimator in the one‐parameter regression model is derived in closed form and expressed through the cumulative distribution function of the standard normal variable. Several proposals to generalize this result are discussed. The exact density is extended to the estimating equation (EE) approach and the non‐linear regression with an arbitrary number of linear parameters and one intrinsically non‐linear parameter. For a very special non‐linear regression model, the derived density coincides with the distribution of the ratio of two normally distributed random variables previously obtained by Fieler almost a century ago, unlike other approximations previously suggested by other authors. Approximations to the density of the EE estimators are discussed in the multivariate case. Numerical complications associated with the non‐linear least squares are illustrated, such as non‐existence and/or multiple solutions, as major factors contributing to poor density approximation. The non‐linear Markov–Gauss theorem is formulated on the basis of the near exact EE density approximation. 相似文献
102.
The exact confidence region for log relative potency resulting from likelihood score methods (Williams (1988) An exact confidence interval for the relative potency estimated from a multivariate bioassay, Biometrics, 44:861-868) will very likely consist of two disjoint confidence intervals. The two methods proposed by Williams which aim to select just one (the same) confidence interval from the confidence region are nearly – but not completely – consistent. The likelihood score interval and likelihood ratio interval are asymptotically equivalent. Williams's very strong claim concerning the confidence coefficient in the second selection method is still theoretically unproved; yet, simulations show that it is true for a wide range of practical experimental situations. 相似文献
103.
Michael William R. Stott Eugene L. Gaier Kathleen B. Thomas 《Children and youth services review》1984,6(3):207-217
Visitation of children after divorce by noncustodial parents is a “natural” right, generally regarded to be in the best interest of children. Custodial parents frequently refuse to allow visitation, even when ordered to do so by the court. The purpose of this report is twofold: (a) to review issues and problems related to visitation; and (b) to describe a program, developed under family court sponsorship, which provides mediation to families in visitation disputes, and supervised visitation when more reasonable access is frustrated by noncompliant parents or when there is concern for the safety and well-being of visited children. 相似文献
104.
105.
We discuss a new framework for text understanding. Three major design decisions characterize this approach. First, we take the problem of text understanding to be a particular case of the general problem of abductive inference. Second, we use probability theory to handle the uncertainty which arises in this abductive inference process. Finally, all aspects of natural language processing are treated in the same framework, allowing us to integrate syntactic, semantic and pragmatic constraints. In order to apply probability theory to this problem, we have developed a probabilistic model of text understanding. To make it practical to use this model, we have devised a way of incrementally constructing and evaluating belief networks. We have written a program,wimp3, to experiment with this framework. To evaluate this program, we have developed a simple single-blind testing method. 相似文献
106.
107.
Eugene M. Klimko 《统计学通讯:模拟与计算》2013,42(2):103-125
This paper contains an analysis of the problem of computing the joint probability density of the honor card point count in each of four hands in the game of bridge. Efficient representation of the data is considered. Computational algorithms are given for dealing with a compressed form of the density. From the joint density, the densities of the point count in the best and worst hands are obtained. Also obtained is the conditional distribution that a partnership has m points given that one of the partners has n1 points. 相似文献
108.
Penny Gardiner Mike Leat Eugene Sadler-Smith 《Human Resource Development International》2013,16(3):391-405
This paper looks at learning in organizations as one response to competitive pressure and accelerating environmental change. Two approaches, the learning organization and HRD, are examined in the light of new models of management and learning and a move towards the integration of work, learning, and strategy. The significance of employee participation is considered in relation to learning and some benefits and drawbacks discussed. The development of a learning orientation is seen as an organization-wide responsibility but HR practitioners can play a key role in the promotion of learning by gearing the more traditional HR activities towards the achievement of organizational goals. 相似文献
109.
Based on the notion that leadership involves affective exchange (Dasborough, Ashkanasy, Tee & Tse, 2009), we hypothesize that a leader's mood and task performance can be determined in part by follower mood displays. In two laboratory experiments, leaders supervised teams where the team members were confederates instructed to display positive or negative moods. Results were that followers' mood influenced leader mood and task performance. Moreover, leaders of positive mood followers were judged to have performed more effectively and expediently than leaders of followers who expressed negative mood states. We replicated these findings in Study 2 and found further that leaders high on neuroticism performed less effectively than their low neuroticism counterparts when interacting with negative-mood followers. Collectively, by demonstrating that follower moods influence leader affect and behaviors, our studies provide support for a core element of the Dasborough et al. (2009) reciprocal affect theory of leadership. 相似文献
110.
Eugene D. Gallagher 《The American statistician》2020,74(3):301-306
AbstractQuetelet’s data on Scottish chest girths are analyzed with eight normality tests. In contrast to Quetelet’s conclusion that the data are fit well by what is now known as the normal distribution, six of eight normality tests provide strong evidence that the chest circumferences are not normally distributed. Using corrected chest circumferences from Stigler, the χ2 test no longer provides strong evidence against normality, but five commonly used normality tests do. The D’Agostino–Pearson K2 and Jarque–Bera tests, based only on skewness and kurtosis, find that both Quetelet’s original data and the Stigler-corrected data are consistent with the hypothesis of normality. The major reason causing most normality tests to produce low p-values, indicating that Quetelet’s data are not normally distributed, is that the chest circumferences were reported in whole inches and rounding of large numbers of observations can produce many tied values that strongly affect most normality tests. Users should be cautious using many standard normality tests if data have ties, are rounded, and the ratio of the standard deviation to rounding interval is small. 相似文献