Machine Learning in Action

出版者:Manning Publications

作者:Peter Harrington

页数:384

出版时间:2012-4-19

价格:GBP 29.99

装帧:Paperback

isbn号码:9781617290183

具体描述

It's been said that data is the new "dirt"—the raw material from which and on which you build the structures of the modern world. And like dirt, data can seem like a limitless, undifferentiated mass. The ability to take raw data, access it, filter it, process it, visualize it, understand it, and communicate it to others is possibly the most essential business problem for the coming decades.

"Machine learning," the process of automating tasks once considered the domain of highly-trained analysts and mathematicians, is the key to efficiently extracting useful information from this sea of raw data. By implementing the core algorithms of statistical data processing, data analysis, and data visualization as reusable computer code, you can scale your capacity for data analysis well beyond the capabilities of individual knowledge workers.

Machine Learning in Action is a unique book that blends the foundational theories of machine learning with the practical realities of building tools for everyday data analysis. In it, you'll use the flexible Python programming language to build programs that implement algorithms for data classification, forecasting, recommendations, and higher-level features like summarization and simplification.

As you work through the numerous examples, you'll explore key topics like classification, numeric prediction, and clustering. Along the way, you'll be introduced to important established algorithms, such as Apriori, through which you identify association patterns in large datasets and Adaboost, a meta-algorithm that can increase the efficiency of many machine learning tasks.

作者简介

Peter Harrington holds Bachelors and Masters Degrees in Electrical Engineering. He worked for Intel Corporation for seven years in California and China. Peter holds five US patents and his work has been published in three academic journals. He is currently the chief scientist for Zillabyte Inc. Peter spends his free time competing in programming competitions, and building 3D printers.

目录信息

Part 1: Classification
1 Machine learning basics
2 Classifying with k-nearest neighbors
3 Splitting datasets one feature at a time: decision trees
4 Classifying with probability distributions: Na�ve Bayes
5 Logistic regression
6 Support vector machines
7 Improving classification with a meta-algorithm: Adaboost
Part 2: Forecasting numeric values with regression
8 Predicting numeric values: regression
9 Tree-based regression
Part 3: Unsupervised learning
10 Grouping unlabeled items using k-means clustering
11 Association analysis with the Apriori algorithm
12 Efficiently finding frequent itemsets with FP-Growth
Part 4 Additional tools
13 Using principal components analysis to simplify our data
14 Simplifying data with the singular value decomposition
15 Big data and MapReduce
· · · · · · (收起)

读后感

尽管评论里对这本书褒贬不一，我觉得这些都是根据每个人不同的能力背景出发而给的评论。而对于我这样能力的人来说，这本书可以说是最适合了。我是什么能力状况呢，计算机专业背景，有那么几年开发经验，但是机器学习方面是小白。 看这本书需要一定的编程经验，但不需要很强，...  

这本书最大的优点在于有源码实现，很赞，但是理论部分太差了，看了逻辑回归和支持向量机两章，发现好多理论都没讲，就比如逻辑回归中的Cost函数都没说，如果不了解，源码读起来也是一头雾水，所以对于初学者还需要一本理论较强的书，推荐李航博士的统计机器学习方法，刚好配套～  

这本书最大的优点在于有源码实现，很赞，但是理论部分太差了，看了逻辑回归和支持向量机两章，发现好多理论都没讲，就比如逻辑回归中的Cost函数都没说，如果不了解，源码读起来也是一头雾水，所以对于初学者还需要一本理论较强的书，推荐李航博士的统计机器学习方法，刚好配套～  

这本书最大的优点在于有源码实现，很赞，但是理论部分太差了，看了逻辑回归和支持向量机两章，发现好多理论都没讲，就比如逻辑回归中的Cost函数都没说，如果不了解，源码读起来也是一头雾水，所以对于初学者还需要一本理论较强的书，推荐李航博士的统计机器学习方法，刚好配套～  

理论推导太弱，导致部分代码实现难以理解为什么是这样写，建议配合吴恩达讲义使用。 另外贝叶斯那段代码实现应该是错误的，作者在计算概率的时候把分母给弄错了，还有就是因为python版本问题，在python3上跑书上程序需要对程序进行一些改动。 附代码修改： def classifyNB(vec2...  

用户评价

入门好书

随便翻翻，当复习Python和相关库了。适合初学者。

超级赞的入门好书，很多之前模糊的概念都通过本书中的例子弄明白了

是本好书，有些章节还看的不是最明白。值得反复阅读

书中介绍了“十大机器学习算法”中的八种，虽然不深入但是讲解清楚容易理解和上手，是本佳作。从覆盖面上来看没涉及到随机森林算法和神经网络是一个小遗憾。