机器学习:贝叶斯和优化方法 (希)西格尔斯·西奥多里蒂斯 机械工业出版社【正版】 mobi 下载 网盘 caj lrf pdf txt 阿里云

本书对所有主要的机器学习方法和新研究趋势进行了深入探索，涵盖概率和确定性方法以及贝叶斯推断方法。其中，经典方法包括平均/小二乘滤波、卡尔曼滤波、随机逼近和在线学习、贝叶斯分类、决策树、逻辑回归和提升方法等，新趋势包括稀疏、凸分析与优化、在线分布式算法、RKH空间学习、贝叶斯推断、图模型与隐马尔可夫模型、粒子滤波、深度学习、字典学习和潜变量建模等。全书构建了一套明晰的机器学习知识体系，各章内容相对***，物理推理、数学建模和算法实现精准且细致，并辅以应用实例和习题。本书适合该领域的科研人员和工程师阅读，也适合学习模式识别、统计/自适应***处理和深度学习等课程的学生参考。

Contents

Preface.iv

Acknowledgments.vv

Notation.vfivi

CHAPTER 1 Introduction .1

1.1 What Machine Learning is About1

1.1.1 Classification.2

1.1.2 Regression3

1.2 Structure and a Road Map of the Book5

References8

CHAPTER 2 Probability and Stochastic Processes 9

2.1 Introduction.10

2.2 Probability and Random Variables.10

2.2.1Probability11

2.2.2Discrete Random Variables12

2.2.3Continuous Random Variables14

2.2.4Meanand Variance15

2.2.5Transformation of Random Variables.17

2.3 Examples of Distributi***18

2.3.1Discrete Variables18

2.3.2Continuous Variables20

2.4 Stochastic Processes29

2.4.1First and Second Order Statistics.30

2.4.2Stationarity and Ergodicity30

2.4.***owerSpectral Density33

2.4.4Autoregressive Models38

2.5 InformationTheory.41

2.5.1Discrete Random Variables42

2.5.2Continuous Random Variables45

2.6 Stochastic Convergence48

Problems49

References51

CHAPTER 3 Learning in Parametric Modeling: Basic Concepts and Directi*** 53

3.1 Introduction.53

3.2 Parameter Estimation: The Deterministic Point of View.54

3.3 Linear Regression.57

3.4 Classification60

3.5 Biased Versus Unbiased Estimation.64

3.5.1 Biased or Unbiased Estimation?65

3.6 The Cramér-Rao Lower Bound67

3.7 Suf?cient Statistic.70

3.8 Regularization.72

3.9 The Bias-Variance Dilemma.77

3.9.1 Mean-Square Error Estimation77

3.9.2 Bias-Variance Tradeoff78

3.10 MamumLikelihoodMethod.82

3.10.1 Linear Regression: The Nonwhite Gaussian Noise Case84

3.11 Bayesian Inference84

3.11.1 The Mamum a Posteriori Probability Estimation Method.88

3.12 Curse of Dimensionality89

3.13 Validation.91

3.14 Expected and Empirical Loss Functi***.93

3.15 Nonparametric Modeling and Estimation.95

Problems.97

References102

CHAPTER4 Mean-quare Error Linear Estimation105

4.1Introduction.105

4.2Mean-Square Error Linear Estimation: The Normal Equati***106

4.2.1The Cost Function Surface107

4.3A Geometric Viewpoint: Orthogonality Condition109

4.4Extensionto Complex-Valued Variables111

4.4.1Widely Linear Complex-Valued Estimation113

4.4.2Optimizing with Respect to Complex-Valued Variables: Wirtinger Calculus116

4.5Linear Filtering.118

4.6MSE Linear Filtering: A Frequency Domain Point of View120

4.7Some Typical Applicati***.124

4.7.1Interference Cancellation124

4.7.2System Identification125

4.7.3Deconvolution: Channel Equalization126

4.8Algorithmic Aspects: The Levinson and the Lattice-Ladder Algorithms132

4.8.1The Lattice-Ladder Scheme.137

4.9Mean-Square Error Estimation of Linear Models.140

4.9.1The Gauss-Markov Theorem143

4.9.2C***trained Linear Estimation:The Beamforming Case145

4.10Time-Varying Statistics: Kalman Filtering148

Problems.154

References158

CHAPTER 5 Stochastic Gradient Descent: The LMS Algorithm and its Family .161

5.1 Introduction.162

5.2 The Steepest Descent Method163

5.3 Application to the Mean-Square Error Cost Function167

5.3.1 The Complex-Valued Case175

5.4 Stochastic Appromation177

5.5 The Least-Mean-Squares Adaptive Algorithm179

5.5.1 Convergence and Steady-State Performanceof the LMS in Stationary Environments.181

5.5.2 Cumulative Loss Bounds186

5.6 The Affine Projection Algorithm.188

5.6.1 The Normalized LMS.193

5.7 The Complex-Valued Case.194

5.8 Relatives of the LMS.196

5.9 Simulation Examples.199

5.10 Adaptive Decision Feedback Equalization202

5.11 The Linearly C***trained LMS204

5.12 Tracking Performance of the LMS in N***tationary Environments.206

5.13 Distributed Learning:The Distributed LMS208

5.13.1Cooperation Strategies.209

5.13.2The Diffusion LMS211

5.13.3 Convergence and Steady-State Performance: Some Highlights218

5.13.4 C***ensus-Based Distributed Schemes.220

5.14 A Case Study:Target Localization222

5.15 Some Concluding Remarks: C***ensus Matrix.223

Problems.224

References227

CHAPTER 6 The Least-Squares Family 233

6.1 Introduction.234

6.2 Least-Squares Linear Regression: A Geometric Perspective.234

6.3 Statistical Properties of the LS Estimator236

***

作者简介

Sergios Theodoridis 希腊雅典大学信息系教授。主要研究方向是自适应***处理、通信与模式识别。他是欧洲并行结构及语言协会（PARLE-95）的主席和欧洲***处理协会（EUSIPCO-98）的常务主席、《***处理》杂志编委。

K***tantinos Koutroumbas 1995年在希腊雅典大学获得博士学位。自2001年起任职于希腊雅典国家天文台空间应用研究院，是国际知名的专家。

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Of course, the author, being human, could not avoid emphasizing the techniques with which he is most familiar. This is healthy, since writing a book is a means of sharing the author's expertise and point of view with readers. This is why I strongly believe that a new book does not come to replace previous ones, but to complement previously published points of view.

For a fixed number of training points, N, in the data sets D, trying to minimize the variance term results in an increase of the bias term and vice versa. This is because, in order to reduce the bias term, one has to increase the complexity (more free parameters) of the adopted estimator f (·; D). This, in turn, results in higher variance as we change the training sets. This is a manifestation of the over fitting issue that we have already discussed. The only way to reduce both terms simultaneously is to increase the number of the training data points, N, and at the same time increase the complexity of the model carefully, so as to achieve the aforementioned goal. If one increases the number of training points and at the same time increases the model complexity excessively, the overall MSE...

书籍介绍

本书对所有主要的机器学习方法和新研究趋势进行了深入探索，涵盖概率和确定性方法以及贝叶斯推断方法。其中，经典方法包括平均/小二乘滤波、卡尔曼滤波、随机逼近和在线学习、贝叶斯分类、决策树、逻辑回归和提升方法等，新趋势包括稀疏、凸分析与优化、在线分布式算法、RKH空间学习、贝叶斯推断、图模型与隐马尔可夫模型、粒子滤波、深度学习、字典学习和潜变量建模等。全书构建了一套明晰的机器学习知识体系，各章内容相对***，物理推理、数学建模和算法实现精准且细致，并辅以应用实例和习题。本书适合该领域的科研人员和工程师阅读，也适合学习模式识别、统计/自适应***处理和深度学习等课程的学生参考。