Topic 6: Introduction to Keras

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About Keras

Keras: A Powerful Deep Learning Framework

Keras is an open-source deep learning framework written in Python. It is designed to be user-friendly, modular, and extensible, making it a popular choice among data scientists and machine learning engineers.

Key Features of Keras

  • Simple and intuitive API for building and training neural networks
  • Supports both convolutional and recurrent neural networks
  • Can run on top of other deep learning libraries like TensorFlow and Theano
  • Multiple backend support for GPU and CPU acceleration
  • Easy to use for beginners, but also highly customizable for advanced users

Getting Started with Keras

To start using Keras, you first need to install the library using pip:

pip install keras

Once installed, you can import Keras into your Python scripts and begin building your neural networks. Here’s a simple example of using Keras to create a basic feedforward neural network:


from keras.models import Sequential
from keras.layers import Dense

model = Sequential()
model.add(Dense(units=64, activation='relu', input_shape=(100,)))
model.add(Dense(units=10, activation='softmax'))

model.compile(loss='categorical_crossentropy',
              optimizer='sgd',
              metrics=['accuracy'])

Conclusion

Keras is a powerful and versatile deep learning framework that has quickly become a staple in the machine learning community. Whether you are just starting out in the field or are a seasoned expert, Keras offers a wide range of tools and capabilities to help you build and train state-of-the-art neural networks.