coursera neural networks

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Machine Learning (I): gradient descent, neuralnetworks, and BP NeuralNetworks

Over the past few days, I have read some peripheral materials around the paper a neural probability language model, such as Neural Networks and gradient descent algorithms. Then I have extended my understanding of linear algebra, probability theory, and derivation. In general, I learned a lot. Below are some notes. I,Neural

NeuralNetworks: convolutional neuralNetworks

is the number of nodes related to the classification, assuming that we are set to 10 classes, the output layer is 10 nodes, the corresponding expectations of the setting in the multilayer neural network has been introduced, each output node and the above hidden layer 100 nodes connected, total (100+1) *10=1010 link line, 1010 weights.As can be seen from the above, the core of convolutional neural

Learning about [neuralnetworks] The best book is "self-built NeuralNetworks". The ebook is now available in Baidu!

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 Neural

Neuralnetworks and deep learning (1): Neurons and neuralnetworks

This paper summarizes some contents from the 1th chapter of Neural Networks and deep learning. Catalogue Perceptual device S-type neurons The architecture of the neural network Using neural networks to recognize handwritten numbers Towards Deep learn

14th-cyclic neuralnetworks (recurrent neuralNetworks) (Part II)

This chapter is a total of two parts, this is the second part:14th-cyclic neural networks (recurrent neural Networks) (Part I) chapter 14th-Cyclic neural networks (recurrent neural

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[Translate] using neuralnetworks for regression (using neuralNetworks with Regression)

This article is from here, the content of this blog is Java Open source, distributed deep Learning Project deeplearning4j The introduction of learning documents. Introduction:in general, neural networks are often used for unsupervised learning, classification, and regression. That is, neural networks can help grou

"Original" Van Gogh oil painting with deep convolutional neural network What is the effect of 100,000 iterations? A neural style of convolutional neuralnetworks

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

Course IV (convolutional neuralNetworks), first week (Foundations of convolutional neuralNetworks)--0.learning goals

Learning Goals Understand the convolution operation Understand the pooling operation Remember the vocabulary used in convolutional neural network (padding, stride, filter, ...) Build a convolutional neural network for Image Multi-Class classification "Chinese Translation"Learning GoalsUnderstanding convolution OperationsUnderstanding pooling Operationsremember vocabulary used in co

Week four: Deep neuralNetworks (Deeper neural network)----------2.Programming assignments:building Your depth neural network:step by Step

neural network:step by StepWelcome to your Week 4 assignment (Part 1 of 2)! You are previously trained a 2-layer neural Network (with a single hidden layer). This week, you'll build a deep neural network with the as many layers as you want! In this notebook, you'll implement all the functions required to build a deep

NeuralNetworks (8)---How to find the parameters of neuralnetworks: the expression of cost function

Two types of classification: binary Multi-ClassThe following are two types of classification problems (one is binary classification, one is Multi-Class classification)If it is a binary classification classification problem, then the output layer has only one node (1 output unit, SL =1), hθ (x) is a real number,k=1 (K represents the node number in the output layer).Multi-Class Classification (with K categories): hθ (x) is a k-dimensional vector, SL =k, generally k>=3 (because if there are two cl

Machine Learning Public Lesson Note (4): Neural Network (neuralnetworks)--Indicates

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 Machine Learning 5th Chapter Neural Networks:learning Study notes

)/∂ (θ (1) JK) is tested for gradients. After the partial derivative code does not have a problem, close the Gradient check section code.6. Use gradient descent or other advanced algorithms to perform reverse propagation to find the θ values for minimizing j (θ).This paper describes the gradient descent algorithm in neural networks: starting from the random initial point, descending step by step, until the

Cyclic neuralnetworks (recurrent neural network,rnn)

Why use sequence models (sequence model)? There are two problems with the standard fully connected neural network (fully connected neural network) processing sequence: 1) The input and output layer lengths of the fully connected neural network are fixed, and the input and output of different sequences may have different lengths, Selecting the maximum length and f

Neural Network jobs: NN Learning Coursera machine learning (Andrew Ng) WEEK 5

)/m; at End - End - -%size (J,1) -%size (J,2) - ind3 = A3-Ty; -D2 = (D3 * THETA2 (:,2: End)). *sigmoidgradient (z2); toTheta1_grad = Theta1_grad + d2'*a1/m; +Theta2_grad = Theta2_grad + d3'*a2/m; - the% ------------------------------------------------------------- *jj=0; $Panax Notoginseng forI=1: Size (Theta1,1) - forj=2: Size (Theta1,2) theJJ = JJ + Theta1 (i,j) *theta1 (i,j) *lambda/(m*2); + End A End theSize (Theta1,1); +Size (Theta1,2); -$ forI=1: Size (THETA2,1) \$

Spiking neural network with pulse neuralnetworks

nervous system, electrophysiological pulses and pulse neural networks compare to the analogue output of a computer, which determines the likelihood of topological and bio-neurological hypotheses.There is a major difference between the impulse neural network and the proven theory in practice. Pulsed neural

convolutional NeuralNetworks convolutional neural Network (II.)

1000x1000x1000000=10^12 connection, that is, 10^12 weight parameters. However, the spatial connection of the image is local, just like the human being through a local feeling field to feel the external image, each neuron does not need to feel the global image, each neuron only feel the local image area, and then at higher levels, The overall information can be obtained by synthesizing the neurons with different local feelings . In this way, we can reduce the number of connections, that is, to r

CNN and CN---convolutional networks and convolutional neuralnetworks in data mining and target detection

Content Overview Word Recognition system LeNet-5 Simplified LeNet-5 System The realization of convolutional neural network Deep neural network has achieved unprecedented success in the fields of speech recognition, image recognition and so on. I have been exposed to neural networks many years

Introduction to artificial neuralnetworks and the implementation and operation of single-layer networks-Use of the aforge. NET Framework (V)

Previous 4ArticleThis is a fuzzy system, which is different from the traditional value logic. The theoretical basis is fuzzy mathematics, so some friends are confused. If you are interested, please refer to relevant books, I recommend the "fuzzy mathematics tutorial", the National Defense Industry Press, which is very comprehensive and cheap (I bought 7 yuan ). Introduction to Artificial Neural Networks Ar

Neural network and deep learning article One: Using neuralnetworks to recognize handwritten numbers

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 consent. " Using

Neural network and deep learning programming exercises (Coursera Wunda) (3)

full implementation of multi-layered neural network recognition picture of the cat Original Coursera Course homepage, in the NetEase cloud classroom also has the curriculum resources but no programming practice. This program uses the functions completed in the last job, fully implementing a multilayer neural network, and training to identify whether there is a

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