Keras.js
Suggest a demo on the Webhttps://transcranial.github.io/keras-js/#/
The load is slow, but it's very fast to recognize.
Run Keras models (trained using TensorFlow backend) in your browser, with GPU support. Models are created directly from the Keras json-format configuration file, using weights serialized directly from the Corr esponding HDF5 file. Als
This article is void
My next installment is the TensorFlow and Keras truth.
Environment:
Anaconda4.2;python3.5;windows10,64,cuda
Previous hard cuda9.1 useless, we want to use the GPU must choose cuda8.0, I thought the official will be corresponding update, naive. First TensorFlow don't recognize, moreover cudnn own all do not recognize, only 8.0.
Keras and TensorFlow are both Pip,pytorch and OpenCV are go
Learning Data Augmentation Based on keras, augmentationkeras
In deep learning, when the data size is not large enough, the following 4 methods are often used:
1. Manually increase the size of the training set. A batch of "new" Data is created from existing Data by means of translation, flip, and Noise addition. That is, Data Augmentation.2. regularization. A small amount of data may lead to over-fitting of the model, making the training error small a
Keras is a Theano and TensorFlow-compatible neural network Premium package that uses him to component a neural network more quickly, and several statements are done. and a wide range of compatibility allows Keras to run unhindered on Windows and MacOS or Linux.Today to compare learning to use Keras to build the following common neural network:
Regression
Keras error ValueError: Tensor conversion requested dtype int32 for Tensor with dtype float32: 'tensor ("embedding_1/random_uniform: 0", shape = (5001,128), dtype = float32 )',
Train and save the model on the server. After the model is copied to the local machine, the load_model () error is returned:
ValueError: Tensor conversion requested dtype int32 for Tensor with dtype float32: 'tensor ("embedding_1/random_uniform: 0", shape = (5001,128), dtyp
under the successful installation Anaconda,
First, install MinGW:
Open prompt--
Input:Conda config--add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/--in input: Conda config--set show_cha Nnel_urls yes--
last input: Conda install MinGW Libpython (so the purpose of the installation is to download more quickly)
Second,
Open
Prompt
, you will see a path inside the window, depending on your path, locate the corresponding directory, and create a new text document in the dir
The curve fitting is realized, that is, the regression problem.
The model was created with single input output, and two hidden layers were 100 and 50 neurons.
In the official document of Keras, the examples given are mostly about classification. As a result, some problems were encountered in testing regression. In conclusion, attention should be paid to the following aspects:
1 training data should be matrix type, where the input and output is 1000*1,
1. Import various modulesThe basic form is:Import Module NameImport a module from a file2. Import data (take two types of classification issues as an example, Numclass = 2)Training Set DataAs you can see, data is a four-dimensional ndarrayTags for training sets3. Convert the imported data to the data format I keras acceptableThe label format required for Keras should be binary class matrices, so you need to
integrated Numpy, making it one of the most commonly used libraries in the General deep learning field from the very beginning. Today, Theano still works well, but because it does not support multi-GPU and horizontal scaling, in the TensorFlow craze (they target the same field), Theano is already forgotten.
Learning Materials Link: http://outlace.com/Beginner-Tutorial-Theano/
about Keras Keras is a very hi
InstallationBefore installing Keras, install one of its backend engines:tensorflow, Theano, or CNTK. We recommend the TensorFlow backend.
TensorFlow installation instructions. (installed)
Theano installation instructions.
CNTK installation instructions.
Also consider installing the following optional dependencies:
CuDNN (Recommended if you plan on the running Keras on GPU). (i
This article mainly wants to introduce how to use the Scikit-learn grid search function, and gives a set of code examples. You can copy and paste the code into your own project as the start of the project.
List of topics covered below: How to use Keras in the Scikit-learn model. How to use Grid search in the Scikit-learn model. How to tune batch size and training epochs. How to tune the optimization algorithm. How to tune the learning rate and momentu
Python provides two libraries for fast numerical computations, Theano and TensorFlow, which are very powerful libraries, but it's hard to use them directly to create deep learning models, so Keras came into being, Keras provides a fast and efficient way to create deep learning models based on Theano or TensorFlow.About the installation of Keras, you can see my ot
find MinGW.4, restart the computerV. Installation of TheanoIt is easiest to install directly using the command line:1. Open cmd2, input pip install Theano, after the return is pleasing to download the progress bar, this is very small, so the installation is relatively fast.3, in cmd, input python into the Python environment, and then enter import Theano carriage return, need to wait for some time.Vi. installation of KerasKeras This library on the basis of Theano continue to encapsulate, modular
Migration learning, with off-the-shelf network, run their own data: to retain the network in addition to the output layer of the weight of other layers, change the existing network output layer output class number. Train your network based on existing network weights,Take Keras 2.1.5/vgg16net as an example. Import the necessary libraries
From keras.preprocessing.image import Imagedatagenerator to
keras impo
This script is a training Keras mnist digital Recognition program, previously sent, today to achieve the forecast,
# larger CNN for the mnist Dataset # 2.Negative dimension size caused by subtracting 5 from 1 for ' conv2d_4/convolution ' ( OP: ' conv2d ') with input shapes # 3.userwarning:update your ' conv2d ' call to the Keras 2 Api:http://blog.csdn.net/johini eli/article/details/69222956 # 4.Error check
The laboratory installed new Keras, found Keras default back end is TensorFlow, want to change back to Theano, see the official document also didn't understand, finally buttoned up, very simple.Description of Chinese document: Keras Chinese document, switch back end
In fact, in C:\Users\75538 (75538 is my windos user name, to find your corresponding user name on
' This script goes along the blog post "Building powerful image classification models using very little data" from BLOG.K Eras.io. It uses data that can is downloaded at:https://www.kaggle.com/c/dogs-vs-cats/data in our setup, we:-Created a data/folder-created Train/and validation/subfolders inside data/created-Cats/and dogs/subfolders inside train/a nd validation/-Put the "Cat pictures index 0-999 in data/train/cats-put" Cat pictures index 1000-1400 in Data/valida Tion/cats-put The Dogs Picture
Reprint: http://blog.csdn.net/mmc2015/article/details/50976776
Install first and say:
sudo pipinstall Keras
or manually installed:
Download: Git clone git://github.com/fchollet/keras.git
Upload it to the appropriate machine.
Install: CD to the Keras folder and run the Install command:
sudo python setup.py install
Keras in Theano, before learning
When you install Keras,import Keras with Pip after the normal installation completes Python 2.7, you will be prompted not toTensorFlow initially does not support Windows environments and is now compatible with Windows, but requires Python 3. The installation steps are as follows:Install the Anaconda link first: https://www.anaconda.com/download/download the Windows 2.7 version and install it directly after
Keras-anomaly-detection
Anomaly Detection implemented in Keras
The source codes of the recurrent, convolutional and feedforward networks auto-encoders for anomaly detection can be found in keras_anomaly_detection/library/convolutional. py and keras_anomaly_detection/library/recurrent. py and keras_anomaly_detection/library/feedforward. PY
The anomaly detection is implemented using auto-Encoder with convolut
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