全文获取类型
收费全文 | 2885篇 |
免费 | 101篇 |
专业分类
管理学 | 321篇 |
民族学 | 43篇 |
人才学 | 1篇 |
人口学 | 363篇 |
丛书文集 | 2篇 |
理论方法论 | 250篇 |
综合类 | 56篇 |
社会学 | 1289篇 |
统计学 | 661篇 |
出版年
2024年 | 9篇 |
2023年 | 47篇 |
2022年 | 40篇 |
2021年 | 71篇 |
2020年 | 131篇 |
2019年 | 169篇 |
2018年 | 248篇 |
2017年 | 251篇 |
2016年 | 210篇 |
2015年 | 114篇 |
2014年 | 180篇 |
2013年 | 517篇 |
2012年 | 206篇 |
2011年 | 92篇 |
2010年 | 87篇 |
2009年 | 77篇 |
2008年 | 77篇 |
2007年 | 56篇 |
2006年 | 50篇 |
2005年 | 42篇 |
2004年 | 43篇 |
2003年 | 31篇 |
2002年 | 28篇 |
2001年 | 26篇 |
2000年 | 17篇 |
1999年 | 13篇 |
1998年 | 20篇 |
1997年 | 14篇 |
1996年 | 16篇 |
1995年 | 15篇 |
1994年 | 6篇 |
1993年 | 3篇 |
1992年 | 12篇 |
1991年 | 7篇 |
1990年 | 4篇 |
1989年 | 6篇 |
1988年 | 3篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1978年 | 2篇 |
1975年 | 3篇 |
1971年 | 2篇 |
1968年 | 3篇 |
1964年 | 1篇 |
排序方式: 共有2986条查询结果,搜索用时 13 毫秒
31.
Miloš Jiálek 《Statistics》2013,47(3):441-456
The bibliography contains about 270 references dealing with statistical tolerance regions. These are classified according to the type of probability distribution concerned and according to some other criteria as well. 相似文献
32.
Josef Kozák 《Statistics》2013,47(3):363-371
Working with the linear regression model (1.1) and having the extraneous information (1.2) about regression coefficients the problem exists how to build estimators (1.3) with the risk (1.4) which enable to utilize the known information in order to reduce their risk as compared with the risk (1.6) of the LSE (1.5). Solution of this problem is known for the positive definite matrix T, namely in form for estimators (1.8) and (1.10).First, it is shown that the proposed estimators (2.6),(2.9) and (2.16) based on psedoinversions of the matrix L represent the solution of the problem of the positive semidefinite matrix T=L'L.Further, the problem of interpretability of estimators in the sense of the inequality (3.1) exists; it is shown that all mentioned estimators are at least partially interpretable in the sense of requirements (3.2) or (3.10). 相似文献
33.
Narayanaswamy Balakrishnan Enrique Castillo Alfonso Fernández-Canteli 《统计学通讯:模拟与计算》2013,42(2):215-232
In this article, we present a general model for predicting the fatigue behavior for any stress level and amplitude using the exponential model. Based on the Wöhler field for fixed stress level, a compatibility functional equation enables us to derive the general model with eight parameters. The problem of parameter estimation is then discussed and some methods are described. Some examples are finally presented to illustrate the derived model and the proposed methods of estimation. 相似文献
34.
Elizabeth González-Estrada 《统计学通讯:模拟与计算》2013,42(3):557-562
In this article, a technique based on the sample correlation coefficient to construct goodness-of-fit tests for max-stable distributions with unknown location and scale parameters and finite second moment is proposed. Specific details to test for the Gumbel distribution are given, including critical values for small sample sizes as well as approximate critical values for larger sample sizes by using normal quantiles. A comparison by Monte Carlo simulation shows that the proposed test for the Gumbel hypothesis is substantially more powerful than some other known tests against some alternative distributions with positive skewness coefficient. 相似文献
35.
36.
In this article power divergences statistics based on sample quantiles are transformed in order to introduce new goodness-of-fit tests. Quantiles of the distribution of proposed statistics are calculated under uniformity, normality, and exponentiality. Several power comparisons are performed to show that the new tests are generally more powerful than the original ones. 相似文献
37.
The relation between change points in multivariate surveillance is important but seldom considered. The sufficiency principle is here used to clarify the structure of some problems, to find efficient methods, and to determine appropriate evaluation metrics. We study processes where the changes occur simultaneously or with known time lags. The surveillance of spatial data is one example where known time lags can be of interest. A general version of a theorem for the sufficient reduction of processes that change with known time lags is given. A simulation study illustrates the benefits or the methods based on the sufficient statistics. 相似文献
38.
The relationship between contributions and elicited beliefs in a repeated two-person public good experiment is modeled with the help of a parsimounious random-utility function that allows for conditionally cooperative, opportunistic, and altruistic patterns of behavior. Under standard assumptions, a latent-class mixed logit specification with three sub-populations is shown to capture well heterogeneity in individual contribution levels over time, while also accomodating for different degrees of heteroscedasticity. The estimation results are consistent with the conjecture that the majority of players in public goods games are strongly conditional cooperators, with smaller fractions of the population leaning to opportunistic or altruistic behavior. 相似文献
39.
40.
ABSTRACTThe most important factor in kernel regression is a choice of a bandwidth. Considerable attention has been paid to extension the idea of an iterative method known for a kernel density estimate to kernel regression. Data-driven selectors of the bandwidth for kernel regression are considered. The proposed method is based on an optimally balanced relation between the integrated variance and the integrated square bias. This approach leads to an iterative quadratically convergent process. The analysis of statistical properties shows the rationale of the proposed method. In order to see statistical properties of this method the consistency is determined. The utility of the method is illustrated through a simulation study and real data applications. 相似文献