Summary
In order to follow the in-depth study of the introductory, usually see the relevant sites and videos, here back up.
A comparison of 5 depth learning frameworks
Share a comparison video about the most popular 5 depth learning frameworks (Scikit Learn,tensorflow,theano,keras, and Caffe): http://weibo.com/p/ 23044464933dbb5463a1b0cef9ebcb4207b869. Iterate through each of the pros and cons, as well as some sample code, to make a definitive concl
. There is absolutely no need, and will cause the Spyder to start when the window, kernel died, and so on, this is my test, engaged a day ... "" When installing anaconda, do not install Python version 3.5, the total display GPU is not available. And do not install Spyder3 series, that is, more than Anaconda4.2.0. Instead, Python chooses 2.7,spyder to select the 2 series, which is the Anaconda4.1.1 version and below. What is the reason? Because Spyder3 always does not call the Ipythonw.exe interp
function, |a|>1, it means that the curve is getting smoother, Z-values tend to be closer to 1 or 0, which can also cause gradients to disappear.What if we can give a suitable value to W when we initialize the weights in each layer of the network, can we reduce the possibility of this gradient explosion or gradient disappearing? Let's see how to choose.One, random distribution weightsIn Keras, whose function is: k.random_uniform_variable (), let's tak
The problem is as follows:E:\project\dl\python\keras>python keras_sample.pyUsing Theano backend.Traceback (most recent):File "keras_sample.py", line 8, From Keras.preprocessing.image import ImagedatageneratorFile "D:\Program files\python_3.5\lib\site-packages\keras\preprocessing\image.py", line 9, From scipy import NdimageFile "D:\Program files\python_3.5\lib\site-packages\scipy\ndimage\__init__.py", line 1
Learning Goals
Understand multiple foundational papers of convolutional neural networks
Analyze the dimensionality reduction of a volume in a very deep network
Understand and Implement a residual network
Build a deep neural network using Keras
Implement a skip-connection in your network
Clone a repository from GitHub and use transfer learning
Learning Goalsunderstanding of multi-basis papers in convolutional neural ne
. Typically, a gradient drop involves rolling down a hill in a static loss. But with Gan, every step down the hill will change the landscape. This is a dynamic system in which the optimization process seeks not the least, but a balance between two forces . For this reason, Gan is notoriously difficult to train -making Gan work requires a lot of careful adjustment of the model architecture and training parameters.Gan implementationUse Keras to impleme
accomplished by adding sigmoid activation to the last layer of decoder:F (x) =11+e−x as an example, we take M = 100,decoder for the most popular full connection network (MLP). The definitions based on the Keras functional API are as follows:
N, m = 784, 2
Hidden_dim = 256
batch_size = M
# # encoder
z = Input (batch_shape= (Batch_size, M))
H_de coded = dense (Hidden_dim, activation= ' Tanh ') (z)
x_hat = dense (n, activation= ' sigmoid ') (h_decoded)
Pytorch is a python-based deep learning library. Pytorch Source Library of the level of abstraction is small, clear structure, the code is moderate. Compared to very engineered tensorflow,pytorch is an easy-to-start, great deep learning framework.
For the system learning Pytorch, the official provides a very good introductory tutorial, but also provides an example for deep learning, while enthusiastic netizens to share a more concise example. 1. Overview
Different from low-level libraries such a
When we learn the mature network model, such as Vgg, Inception, ResNet, etc., the first question is how to set the parameters of each layer of these models? In addition, if we want to design our own network model, how to set the parameters of each layer? If the model parameter setting error, in fact, the model also often can not run.
Therefore, we need to first understand the meaning of each layer of the model, such as the output size and the number of training parameters. After understanding, e
-related environment variablesNew environment variable Pythonpath, variable value is:C:\Anaconda2\Lib\site-packages\theano;Test Theano Installation success: Import Theano, no error, Theano installation success6. Installing KerasDownload Keras on GitHubIn cmd, go to the folder where you downloaded the Keras, and then use the Python setup.py install command Keras7. Install Pycharm Community (free)After instal
He is good at python, theano, and keras frameworks. He wants to introduce some new and interesting papers. Note: painting has been realized. Reply content: I have already received more than 400 likes without knowing it. Recently, I have finally made some time to add more interesting things. The content in the back will not be broken down ...... (No more than deep learning ......) 0. GitHub-Rochester-NRTRocAlphaGo: Anindependent, student-ledreplication
Recently in the race to do an image classification, as the first contact with deep learning Rookie, get started Keras. To tell the truth, in addition to the Keras tutorial, Chinese Blog Technical support is too poor. In the study of the big head ... Needless to say, record some of the small details of your study. In the Encounter generator.flow_from_directory (' Data/train ' ...) This function, you need to
capture and WEB capture framework developed by Python that allows users to easily implement a crawler that crawls Web content as well as various images with a simple custom development of several modules. Scrapy can be used for data mining, monitoring and automated testing in a wide range of applications.The attraction of Scrapy is that it is a framework that anyone can easily modify as needed. It also provides base classes for various types of crawlers, such as Basespider, sitemap crawlers, et
Python data analysis (Basic)First, install the anaconda:https://www.anaconda.com/download/#windowsIi. NumPy (Basic package of scientific calculation)Three, matplotlib (chart)Iv. SciPy (collection of packages for solving various standard problem domains in scientific calculations)V. Pandas (Treatment of structured data)Vi. Sciket-learn (machine learning and decision tree)1, data mining and machine learning are divided into three steps: Data preprocessing, data modeling, validationVii.
Directory1. What is regularization?2. How does regularization reduce overfitting?3. Various regularization techniques in deep learning:Regularization of L2 and L1DropoutData Enhancement (augmentation)Stop early (Early stopping)4. Case study: Case studies using Keras on Mnist datasets1. What is regularization?Before going into this topic, take a look at these pictures:Have you seen this picture before? From left to right, our model learns too much deta
=5176.8366600.0.0.6021311f0wiltq raceid=231601postsid=2947 "So for the improvement of the network, as far as I'm concerned, tried: 1, in the last layer (after the last sampling, before the first sampling) to join a full-join layer, the purpose is to add a cross-entropy loss function, in order to add additional information (such as whether a picture is a certain type of things)2, for each time the sample is output (prediction), the results will be a fusion (similar to the FPN network (feature pyr
with a 1x1 filter and a layer with a 3x3 filter. Then, we connect the outputs of these layers together in the channel dimension. This is equivalent to the implementation of a layer containing 1x1 and 3x3 filters in numerical terms.
We published the squeezenet configuration file in a format defined by the Caffe CNN framework. However, in addition to Caffe, there are some other CNN frameworks, including Mxnet (Chen et al., 2015a), Chainer (Tokui, 2015), Keras
would be is implied on each input. The function would run after the image is resized and augmented. The function should take one argument:one image (Numpy tensor with rank 3), and should output a Numpy tensor with the SAM E shape. Data_format=none
One of {"Channels_first", "Channels_last"}.
"Channels_last" mode means that the images should has shape (samples, height, width, channels),
"Channels_first" mode means that the images should has shape (samples, channels, height, width).
It defaults to
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