全文获取类型
收费全文 | 9150篇 |
免费 | 312篇 |
国内免费 | 50篇 |
专业分类
管理学 | 382篇 |
劳动科学 | 2篇 |
民族学 | 63篇 |
人才学 | 1篇 |
人口学 | 71篇 |
丛书文集 | 417篇 |
理论方法论 | 193篇 |
综合类 | 2993篇 |
社会学 | 178篇 |
统计学 | 5212篇 |
出版年
2024年 | 12篇 |
2023年 | 52篇 |
2022年 | 72篇 |
2021年 | 79篇 |
2020年 | 151篇 |
2019年 | 277篇 |
2018年 | 286篇 |
2017年 | 488篇 |
2016年 | 281篇 |
2015年 | 247篇 |
2014年 | 390篇 |
2013年 | 1943篇 |
2012年 | 750篇 |
2011年 | 426篇 |
2010年 | 384篇 |
2009年 | 400篇 |
2008年 | 380篇 |
2007年 | 409篇 |
2006年 | 343篇 |
2005年 | 309篇 |
2004年 | 257篇 |
2003年 | 226篇 |
2002年 | 240篇 |
2001年 | 188篇 |
2000年 | 146篇 |
1999年 | 128篇 |
1998年 | 101篇 |
1997年 | 81篇 |
1996年 | 56篇 |
1995年 | 55篇 |
1994年 | 55篇 |
1993年 | 44篇 |
1992年 | 50篇 |
1991年 | 22篇 |
1990年 | 24篇 |
1989年 | 17篇 |
1988年 | 27篇 |
1987年 | 16篇 |
1986年 | 11篇 |
1985年 | 9篇 |
1984年 | 20篇 |
1983年 | 21篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 2篇 |
1979年 | 10篇 |
1978年 | 6篇 |
1977年 | 3篇 |
1975年 | 3篇 |
1973年 | 1篇 |
排序方式: 共有9512条查询结果,搜索用时 15 毫秒
191.
《Journal of Statistical Computation and Simulation》2012,82(9):1367-1382
We consider the problem of modelling a long-memory time series using piecewise fractional autoregressive integrated moving average processes. The number as well as the locations of structural break points (BPs) and the parameters of each regime are assumed to be unknown. A four-step procedure is proposed to find out the BPs and to estimate the parameters of each regime. Its effectiveness is shown by Monte Carlo simulations and an application to real traffic data modelling is considered. 相似文献
192.
193.
《Journal of Statistical Computation and Simulation》2012,82(6):779-793
In this article, new pseudo-Bayes and pseudo-empirical Bayes estimators for estimating the proportion of a potentially sensitive attribute in a survey sampling have been introduced. The proposed estimators are compared with the recent estimator proposed by Odumade and Singh [Efficient use of two decks of cards in randomized response sampling, Comm. Statist. Theory Methods 38 (2009), pp. 439–446] and Warner [Randomized response: A survey technique for eliminating evasive answer bias, J. Amer. Statist. Assoc. 60 (1965), pp. 63–69]. 相似文献
194.
《Journal of Statistical Computation and Simulation》2012,82(1-2):75-91
Logistic regression using conditional maximum likelihood estimation has recently gained widespread use. Many of the applications of logistic regression have been in situations in which the independent variables are collinear. It is shown that collinearity among the independent variables seriously effects the conditional maximum likelihood estimator in that the variance of this estimator is inflated in much the same way that collinearity inflates the variance of the least squares estimator in multiple regression. Drawing on the similarities between multiple and logistic regression several alternative estimators, which reduce the effect of the collinearity and are easy to obtain in practice, are suggested and compared in a simulation study. 相似文献
195.
《Journal of Statistical Computation and Simulation》2012,82(11):1727-1744
Interval-valued variables have become very common in data analysis. Up until now, symbolic regression mostly approaches this type of data from an optimization point of view, considering neither the probabilistic aspects of the models nor the nonlinear relationships between the interval response and the interval predictors. In this article, we formulate interval-valued variables as bivariate random vectors and introduce the bivariate symbolic regression model based on the generalized linear models theory which provides much-needed exibility in practice. Important inferential aspects are investigated. Applications to synthetic and real data illustrate the usefulness of the proposed approach. 相似文献
196.
《Journal of Statistical Computation and Simulation》2012,82(2):397-403
In this article, we present a test for testing uniformity. Based on the test, we provide a test for testing exponentiality. Empirical critical values for both the tests are computed. Both the tests are compared with the tests proposed by Noughabi and Arghami [H. Alizadeh Noughabi, and N.R. Arghami, Testing exponentiality using transformed data, J. Statist. Comput. Simul. 81 (4) (2011), pp. 511–516] using simulation experiments for a wide class of alternatives. The tests possess attractive power properties. 相似文献
197.
Recently Beh and Farver investigated and evaluated three non‐iterative procedures for estimating the linear‐by‐linear parameter of an ordinal log‐linear model. The study demonstrated that these non‐iterative techniques provide estimates that are, for most types of contingency tables, statistically indistinguishable from estimates from Newton's unidimensional algorithm. Here we show how two of these techniques are related using the Box–Cox transformation. We also show that by using this transformation, accurate non‐iterative estimates are achievable even when a contingency table contains sampling zeros. 相似文献
198.
《Journal of Statistical Computation and Simulation》2012,82(1):35-50
There have been a number of procedures used to analyze non-monotonic binary data to predict the probability of response. Some classical procedures are the Up and Down strategy, the Robbins–Monro procedure, and other sequential optimization designs. Recently, nonparametric procedures such as kernel regression and local linear regression (llogr) have been applied to this type of data. It is a well known fact that kernel regression has problems fitting the data near the boundaries and a drawback with local linear regression is that it may be “too linear” when fitting data from a curvilinear function. The procedure introduced in this paper is called local logistic regression, which fits a logistic regression function at each of the data points. An example is given using United States Army projectile data that supports the use of local logistic regression when analyzing non-monotonic binary data for certain response curves. Properties of local logistic regression will be presented along with simulation results that indicate some of the strengths of the procedure. 相似文献
199.
《Journal of Statistical Computation and Simulation》2012,82(3-4):289-290
In adaptive estimation, it is often considered that an estimator has made a mistake if the component estimator chosen for use is not the most efficient for the distribution sampled. Theoretical and simulation results point to a fallacy in this line of thought. The Monte Carlo study involves extension of the Princeton Swindle to distributions conditional on a location and scale-free statistic, and to the uniform. The results give a partial explanation for the sometimes surprising robustness of adaptive L-estimators. 相似文献
200.
《Journal of Statistical Computation and Simulation》2012,82(2-3):107-117
A hierarchical Bayesian approach to ranking and selection as well as estimation of related means in two—way models is considered. Using the method of Monte Carlo simulation with importance sampling, we are able to carry out efficiently the three or four dimensional integrations as needed. An example is included to illustrate the methodology. 相似文献