[下载]硕士学位论文 农村居民食物消费结构变动及其对粮食需求影响的实证分析

SPSS II统计分析教程(高级篇)(1CD)

作 者： 张文彤 出 版 社： 北京希望电子出版社 出版日期： 2002年6月 版次： 2002年6月第1次印刷 I S B N： 790010123 页数： 346 开 本： 1/16 印张： 包 装： 精装 字数： 原 价： ￥40.0 蔚 蓝 价： ￥37.6（1星会员价） ￥36.8（2、3星会员价） ￥36.0（4、5星会员价）

数据统计分析与SPSS应用

作 者： 余建英 何旭宏 出 版 社： 人民邮电出版社 出版日期： 2003年4月 版次： 1 I S B N： 711511206 页数： 476 开 本： 16开 印张： 包 装： 精装 字数： 原 价： ￥45.0 蔚 蓝 价： ￥36.0（1星会员价） ￥35.1（2、3星会员价） ￥34.2（4、5星会员价）

统计软件SPSS系列二次开发篇

作 者： 苏金明 出 版 社： 电子工业出版社 出版日期： 2003年1月 版次： 1 I S B N： 750538173 页数： 306 开 本： 787*1092 1/16 印张： 包 装： 精装 字数： 原 价： ￥35.0 蔚 蓝 价： ￥28.0（1星会员价） ￥27.3（2、3星会员价） ￥26.6（4、5星会员价）

SPSS for Windows统计分析教程(第2版)

作 者： 李志辉 出 版 社： 电子工业出版社 出版日期： 2005年2月 版次： I S B N： 712100720 页数： 683 开 本： 印张： 包 装： 字数： 原 价： ￥55.0 蔚 蓝 价： ￥46.8（1星会员价） ￥45.7（2、3星会员价） ￥44.6（4、5星会员价）

SPSS统计分析高级教程

作 者： 张文彤 董伟 出 版 社： 高等教育出版社 出版日期： 2004年9月 版次： 1 I S B N： 704015864 页数： 开 本： 现货 印张： 包 装： 字数： 原 价： ￥36.0 蔚 蓝 价： ￥32.4（1星会员价） ￥31.7（2、3星会员价） ￥31.0（4、5星会员价）

太贵了。。。

Structural Equation Modeling And Regression Guidelines For Research Practice

47801.pdf (405.33 KB)

2006-4-10 08:23:00 上传

[下载]Structural Equation Modeling And Regression Guidelines For Research Practice

Abstract: The growing interest in Structured Equation Modeling (SEM) techniques and recognition of their importance in IS research suggests the need to compare and contrast different types of SEM techniques so that research designs can be appropriately selected. After assessing the extent to which these techniques are currently being used in IS research, the article presents a running example which analyzes the same dataset via three very different statistical techniques

[此贴子已经被作者于2006-4-10 8:24:51编辑过]

Switching State-Space Models

Zoubin Ghahramani and Geoffrey E. Hinton
Gatsby Computational Neuroscience Unit
University College London
London WC1N 3AR, U.K.

We introduce a new statistical model for time series which iteratively segments data into regimes with approximately linear dynamics and learns the parameters of each of these linear regimes. This model combines and generalizes two of the most widely used stochastic time series models---hidden Markov models and linear dynamical systems---and is closely related to models that are widely used in the control and econometrics literatures. It can also be derived by extending the mixture of experts neural network (Jacobs et al, 1991) to its fully dynamical version, in which both expert and gating networks are recurrent. Inferring the posterior probabilities of the hidden states of this model is computationally intractable, and therefore the exact Expectation Maximization (EM) algorithm cannot be applied. However, we present a variational approximation that maximizes a lower bound on the log likelihood and makes use of both the forward--backward recursions for hidden Markov models and the Kalman filter recursions for linear dynamical systems. We tested the algorithm both on artificial data sets and on a natural data set of respiration force from a patient with sleep apnea. The results suggest that variational approximations are a viable method for inference and learning in switching state-space models.

Extended version of Technical Report CRG-TR-96-3 (1996)

47803.pdf (419.32 KB)

2006-4-10 08:29:00 上传

[推荐]Statistics Ebooks

Decisionmetrics: A Decision-Based Approach to Econometric Modelling

Abstract:

In many applications it is necessary to use a simple and therefore highly misspecified econometric model as the basis for decision-making. We propose an approach to developing a possibly misspecified econometric model that will be used as the beliefs of an objective expected utility maximiser. A discrepancy between model and 'truth' is introduced that is interpretable as a measure of the model's value for this decision-maker. Our decision-based approach utilises this discrepancy in estimation, selection, inference and evaluation of parametric or semiparametric models. The methods proposed nest quasi-likelihood methods as a special case that arises when model value is measured by the Kullback-Leibler information discrepancy and also provide an econometric approach for developing parametric decision rules (e.g. technical trading rules) with desirable properties. The approach is illustrated and applied in the context of a CARA investor's decision problem for which analytical, simulation and empirical results suggest it is very effective.

47804.pdf (1.25 MB)

2006-4-10 08:38:00 上传

[此贴子已经被作者于2006-4-10 8:38:31编辑过]

Statistical Case Studies

Wolfgang Hardle, Yuichi Mori, Philippe Vieu

47806.pdf (1.13 MB)

2006-4-10 08:46:00 上传

[此贴子已经被作者于2006-4-10 8:47:56编辑过]