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Machine learning-Reverse propagation algorithm (BP) code implementation (MATLAB)

Percent Machine learning Online class-exercise 4 neural Network learning% instructions%------------% This file contains Co De that helps you get started on the% linear exercise. You'll need to complete the following functions% of this exericse:%% sigmoidgradient.m% randinitializeweights.m% nncost function.m%% for the exercise, you'll not need to the change any co

Learning materials for architecture-related fields

Document directory 2. virtual machines 3. Design Revisited 4. Programming Model 5. distributed algorithms 6. Overlay networking, and P2P DHT 7. Distributed Systems 8. Controversial Computing Models 9. Debugging Engineers often encounter growth bottlenecks after a certain stage. To break through this bottleneck, you need to learn more in the technical field, understand the nature of the problems in this field, methodology and design concepts, and the development history. The following

Taiwan large "machine learning Cornerstone" course experience and summary---Part 1 (EXT)

Finally the end of the final, look at others summary: http://blog.sina.com.cn/s/blog_641289eb0101dynu.htmlContact Machine Learning also has a few years, but still only a rookie, when the first contact English is not good, do not understand the class, what things are smattering. After learning some open classes and books on the go, I began to understand some conce

"Furnace-smelting AI" machine learning 019-Project case: Estimating traffic flow using the SVM regression

"Furnace-smelting AI" machine learning 019-Project case: Estimating traffic flow using the SVM regression(Python libraries and version numbers used in this article: Python 3.5, Numpy 1.14, Scikit-learn 0.19, matplotlib 2.2)As we all know, SVM is a good classifier, not only for linear classification models, but also for non-linear models, but on the other hand, SVM can be used not only to solve classificatio

The application of machine learning system design Scikit-learn do text classification (top)

Objective:This series is in the author's study "Machine Learning System Design" ([Beauty] willirichert) process of thinking and practice, the book through Python from data processing, to feature engineering, to model selection, the machine learning problem solving process one by one presented. The source code and data

Machine Learning Model Defects

All machine learning models are defective (by John Langford) Attempts to abstract and study machine learning are within some given framework or mathematical model. it turns out that all of these models are significantly flawed for the purpose of studying machine

Basic operation of machine learning using spark mllab (clustering, classification, regression analysis)

As an open-source cluster computing environment, Spark has a distributed, fast data processing capability. The mllib in spark defines a variety of data structures and algorithms for machine learning. Python has the Spark API. It is important to note that in spark, all data is handled based on the RDD.Let's start with a detailed application example of clustering Kmeans:The following code is some basic steps,

On the rule norm in machine learning

I. Introduction of supervised learningThe supervised machine learning problem is nothing more than "Minimizeyour error while regularizing your parameters", which is to minimize errors while the parameters are being parameterized. The minimization error is to let our model fit our training data, and the rule parameter is to prevent our model from overfitting our training data. What a minimalist philosophy! B

A collection of 27 machine-Learning small copy

A collection of 27 machine-Learning small copy There are many aspects of machine learning, and when I started studying it, I found a variety of "small copies" that concisely listed the key points of knowledge for a given topic. In the end, I brought together over 20 machine

Hadoop Learning Note (1): Conceptual and holistic architecture

Jobtracker) on the respective node, There is only one tasktracker per node, but one tasktracker can launch multiple JVMsfor parallel execution of a map or reduce task, which communicates with Jobtracker to inform the Jobtracker subtask of the completion of the task.  Master and slaveMaster node: A node that runs Namenode, or secondary Namenode, or Jobtracker. There are also browsers (for viewing the admin interface), and other Hadoop tools. Master is not the only one! Slave node: A

[Machine learning]overfitting and regularization

Overfitting, see figure below. That is, your model is good enough to be useful only for training data, and test data may not be visible. The reason is, as the figure says, too many feature, perhaps these feature are redundant. How to solve this problem i. The first thought might be to reduce feature. But this has to be done manually. Second, look at the problem in a different way (the world may be very different). If, like the overfitting example above, the THETA3 and theta4 are very small, ev

Robot Learning Cornerstone Machine Learn Cornerstone (machines learining foundations) Job 2 q16-18 C + + implementation

e_out = mu * lambda + (1-LAMBDA) * (1-MU), lambda = 0.8,mu brought in to get answers(3) Answer: 0.5+0.3*s* (|theta|-1)2.17th, 18 questions(1) Test instructions:The 17th question means that in [ -1,1] take 20 points, separated into 21 intervals as the theta of the range of values, each classification has 42 hyphothesis, enumerate all the possible conditions to fi

How to evaluate Petuum Distributed machine learning system?

machine learning, currently contains two main modules: Key-value store and scheduler, mainly dealing with two kinds of parallelization methods: (1) data parallelism; (2) model parallelism.Data parallelism, in a nutshell, is the distribution of data to different machines, each of which calculates a model update, which is then aggregated and updated with the model.Model parallel, the model parameters are seg

Lessons learned developing a practical large scale machine learning system

machine learning system in a live environment. They want a system is dependable, and unlikely to crash or need constant attention. Early versions of Seti had marginally better accuracy on large data sets, but were complex, stressed the network and G FS architecture considerably, and needed constant babysitting. The number of teams willing to deploy these version

Stanford Machine Learning---third speaking. The solution of logistic regression and overfitting problem logistic Regression & regularization

Original address: http://blog.csdn.net/abcjennifer/article/details/7716281This column (machine learning) includes linear regression with single parameters, linear regression with multiple parameters, Octave Tutorial, Logistic Regression, regularization, neural network, design of the computer learning system, SVM (Support vector machines), clustering, dimensionali

Handwritten recognition of KNN in Machine Learning Practice

KNNAlgorithmIt is an excellent entry-level material for machine learning. The book explains as follows: "There is a sample data set, also known as a training sample set, and each data in the sample set has tags, that is, we know the correspondence between each piece of data in the sample set and its category. After entering new data without tags, compare each feature of the new data with the features corres

Machine learning for hackers reading notes (vi) regularization: text regression

dataRanks Library (' TM ')Documents Row.names (documents) #获得语料库Corpus #R2版本用corpus Corpus #R2版本用corpus Corpus #去除英文停用词Corpus #得到词项文档矩阵DTM X Y Set.seed (1)Library (' Glmnet ')Performance For (Lambda in C (0.1, 0.25, 0.5, 1, 2, 5)){For (i-1:50){Indices Training.x Training.y Test.x Test.y Glm.fit Predicted.y Rmse Performance }}Ggplot (Performance, AES (x = Lambda, y = RMSE)) +stat_summary (fun.data = ' Mean_c

Mathematics in Machine Learning (2)-linear regression, deviation and variance trade-offs

Copyright: This article is owned by leftnoteasy and published in http://leftnoteasy.cnblogs.com. If it is reproduced, please indicate the source. If you use this article for commercial purposes without the consent of the author, you will be held legally responsible. If you have any questions, please contact the author's wheeleast@gmail.com Preface: Last sentArticleIt's almost half a month. Over the past half month, I have been exploring the way to mach

Dry Goods | Application of deep learning in machine translation

) In 2013, Nal Kalchbrenner and Phil Blunsom presented a new end-to-end encoder-decoder architecture for machine translation. In 2014, Sutskever developed a method called sequence-to-sequence (seq2seq) learning, and Google used this model to give a concrete implementation method in the tutorial of its deep learning fra

Big Data-spark-based machine learning-smart Customer Systems Project Combat

Data for mongodb-implementation Repo Interface +mongotemplate+crud operation 00:36:17 min16th Spring data for mongodb-paged query 00:13:32 min17th Section Zookeeper cluster installation 00:13:41 min18th Section Zookeeper Basic introduction -100:22:36 minutes19th Section Zookeeper working principle-election process (Basic Paxos algorithm) -200:24:27 min20th Section Zookeeper working principle-election process (Fast Paxos algorithm) -300:31:16 min21st kafka-Background and

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