Instructor Ge yiming's "self-built neural network writing" e-book was launched in Baidu reading.
Home page:Http://t.cn/RPjZvzs.
Self-built neural networks are intended for smart device enthusiasts, computer science enthusiasts, geeks, programmers, AI enthusiasts, and IOT practitioners, it is the first and only

"Self-built Neural Networks" is an e-book. It is the first and only Neural Network book on the market that uses Java.
What self-built Neural Networks teach you:
Understand the principl

Currently, Java is used to develop the largest number of ape programs, but most of them are limited to years of development. In fact, Java can do more and more powerful!
I used Java to build a [self-built neural network] instead of laboratory work, it is a real, direct application that makes our programs smarter, let our program have the perception or cognitive function! Do not use the same number as the neural

current classification method is the number of hidden layers to distinguish whether "depth". When the number of hidden layers in a neural network reaches more than 3 layers, it is called "deep neural Network" or "deep learning".Uh deep learning, it turns out to be so simple.If you have time, you are advised to play more in this playground. You will soon have a perceptual understanding of

convolutional neural Networks:step by step
Welcome to Course 4 ' s-A-assignment! In this assignment, you'll implement Convolutional (CONV) and pooling (POOL) layers in NumPy, including both forward pro Pagation and (optionally) backward propagation.
notation:
We assume that you are already familiar with numpy and/or have completed the previous courses. Let ' s get started!
1-packages
Let ' s-all the packages, you'll need during this assignment. The

bias is used to measure the ability of an independent variable in a multivariate function to influence the function value.
A gradient is a vector that points to the value of the function to increase the fastest direction.
The chain rule is that, for a composite function, the derivation process can be part of a part, and then "linked" up.
Vectors can be thought of as a special form of a matrix.
Matrix multiplication is closely related to linear systems.
The Ndarray in the Num

*SELF.WEIGHTMATRIX[INVERSE_IDX]) self. B[INVERSE_IDX]-= self.decayrate* (1.0/self.traindatanum) *detab[idx] #self. B[INVERSE_IDX] = Self.decayrate*detab[idx] #print self.weightmatrix #priNT self. B def calpunish (self): punishment=0.0 for IDX in range (0,self. NL-1): Temp=self.weightmatrix[idx] Idx_m,idx_n=numpy.shape (temp) for i_m in range (0,idx_m ): For I_n in Range (0,idx_n): Punishment + = Temp[i_m,i_n]*temp[i_m,i_n] return 0. 5*self.punishfactor*punishment def Trainann (self): error_old=1

This article mainly introduces the knowledge of Perceptron, uses the theory + code practice Way, and carries out the learning of perceptual device. This paper first introduces the Perceptron model, then introduces the Perceptron learning rules (Perceptron learning algorithm), finally through the Python code to achieve a single layer perceptron, so that readers a more intuitive understanding. 1. Single-layer Perceptron model
Single-layer perceptron is

=Datetime.datetime.now ()Print("Time Cost :") Print(Tend-tstart)Analysis:1. Forward Propagation: for in range (1, Len (synapselist), 1): Synapselist is a weight matrix.2. Reverse propagationA. Calculating the error of the output of the hidden layer on the inputdef GETW (Synapse, Delta): = [] # traverse the hidden layer each hidden unit to each output weight, such as 8 hidden units, each hidden unit two output each has 2 weights for in Range (Synapse.shape

make a certain response based on this intensity. This process is handled by the activation function in the figure. After processing, we get our final result.
Generally, there are three types of activation function functions (A and B can be regarded as one ):
Now, the basic structure of the neural network, single-layer neural network, has been introduced. For neural

ways to do this-for example, the STATIC_RNN () and DYNAMIC_RNN () functions use the Sequence_length parameter to describe the length of a sentence. However, another scenario is used in the tutorial (possibly for performance reasons): Cutting a sentence into different groups with the same length (for example, a matrix of 1-6 words divided into groups, 7-12 words divided into another group, and so on). Shorter groups are populated with special tags (such as "
Secondly, because the vocabulary

As a free from the vulgar Code of the farm, the Spring Festival holiday Idle, decided to do some interesting things to kill time, happened to see this paper: A neural style of convolutional neural networks, translated convolutional neural network style migration. This is not the "Twilight Girl" Kristin's research direc

Source: Michael Nielsen's "Neural Network and Deep leraning"This section translator: Hit Scir master Xu Zixiang (Https://github.com/endyul)Disclaimer: We will not periodically serialize the Chinese translation of the book, if you need to reprint please contact [email protected], without authorization shall not be reproduced."This article is reproduced from" hit SCIR "public number, reprint has obtained cons

, the objective function of SVM is still convex. Not specifically expanded in this chapter, the seventh chapter is detailed.Another option is to fix the number of base functions in advance, but allow them to adjust their parameters during the training process, which means that the base function can be adjusted. In the field of pattern recognition, the most typical algorithm for this method is the forward neural network (Feed-forward

network prediction
Total number of layers $L $-neural network (including input and output layers)
$\theta^{(L)}$-the weight matrix of the $l$ layer to the $l+1$ layer
$s _l$-the number of neurons in the $l$ layer, note that $i$ counts from 1, and the weights of bias neurons are not counted in the regular term.
The number of neurons in the _{l+1}$-layer of the $s $l+1$
Reference documents[1] Andrew Ng Coursera public class fourth

programming principle and construct a dynamic sequence model. This requires recurrent neural Network (RNN) to achieve.RNN is usually translated into cyclic neural networks, and its similar dynamic programming principles can also be translated into sequential recurrent neural networks.Of course there are structural rec

Order:
This series is based on the neuralnetwork and deep learning book, and I have written my own insights. I wrote this series for the first time. What's wrong! Next, we will introduce neural networks so that you can understand what neural networks are. For better learning

many iterations, gradually incorporating more and more of the core ideas AB Out neural networks and deep learning. This hands-on approach means, you'll need some programming experience to read the book. But you don ' t need to be a professional programmer. I ' ve written the code in Python (version 2.7), which, even

Reprint please indicate the Source: Bin column, Http://blog.csdn.net/xbinworldThis is the essence of the whole fifth chapter, will focus on the training method of neural networks-reverse propagation algorithm (BACKPROPAGATION,BP), the algorithm proposed to now nearly 30 years time has not changed, is extremely classic. It is also one of the cornerstones of deep learning. Still the same, the following basic

This is the essence of the whole fifth chapter, will focus on the training method of neural networks-reverse propagation algorithm (BACKPROPAGATION,BP), the algorithm proposed to now nearly 30 years time has not changed, is extremely classic. It is also one of the cornerstones of deep learning. Still the same, the following basic reading notes (sentence translation + their own understanding), the contents o

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.