learning pyspark

The basic thought of deep learningSuppose we have a system s, which has n layers (S1,... SN), its input is I, the output is O, the image is expressed as: I =>S1=>S2=>.....=>SN = o, if the output o equals input I, that is, input I after this system changes without any information loss (hehe, Daniel said, it is impossible.) In the information theory, there is a "message-by-layer-loss" statement (processing inequalities), the processing of a information obtained B, and then the B processing to get

　　Statement: This blog post according to Http://www.ctocio.com/hotnews/15919.html collation, the original author Zhang Meng, respect for the original.Machine learning is undoubtedly a hot topic in the field of current data analysis. Many people use machine learning algorithms more or less in their usual work. This article summarizes common machine learning algori

Deep learning and shallow learningAs the deep learning now in full swing, in various fields gradually occupy the status of State-of-the-art, last semester in a course project in the deep learning the effect, Recently, when I was doing something, I had a little bottleneck in the model and finally decided to come to know about this magical field.It is said that the

11.1 What to do first11.2 Error AnalysisError measurement for class 11.3 skew11.4 The tradeoff between recall and precision11.5 Machine-Learning data11.1 what to do firstThe next video will talk about the design of the machine learning system. These videos will talk about the major problems you will encounter when designing a complex machine learning system. Also

Multi-Class classification (Multiclass classification)A sample belongs to and belongs to only one of several classes, and one can belong to only one class, and the different classes are mutually exclusive.Typical method: One-vs-all or One-vs.-rest:Divide a number of questions into N two class classification problem, train n two class classifier, for the class I, all the samples belonging to Class I are positive (positive) samples, the other samples are negative (negative) samples, each Class II

Machine learning system Design (Building machines learning Systems with Python)-Willi Richert Luis Pedro Coelho General statementThe book is 2014, after reading only found that there is a second version of the update, 2016. Recommended to read the latest version, the ability to read English version of the proposal, Chinese translation in some places more awkward (but the English version of the book is indee

This article is reproduced from: http://www.csdn.net/article/2015-10-01/2825840 Absrtact: Deep learning based on Hadoop is an innovative method of deep learning. The deep learning based on Hadoop can not only achieve the effect of the dedicated cluster, but also has a unique advantage in enhancing the Hadoop cluster, distributed depth

It has been four years since I started developing the enterprise e-learning system. In the past four years, there have been many things to talk about, so the following are some nonsense. No. Almost every e-learning system is named "Anytime", "Anywhere", and claims that this is a networked learning method. However, I think most e-

The preface introduces the basic concepts of machine learning and depth learning, the catalogue of this series, the advantages of depth learning and so on. This section by hot iron first talk about deep reinforcement study. Speaking of the coolest branch of machine learning, deep l