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Keras Deep Learning Cookbook
book

Keras Deep Learning Cookbook

by Rajdeep Dua, Sujit Pal, Manpreet Singh Ghotra
October 2018
Intermediate to advanced
252 pages
6h 49m
English
Packt Publishing
Content preview from Keras Deep Learning Cookbook

Without embeddings

Keras provides the one_hot() function, which you can use to tokenize and encode a text document. It does not create one-hot encoding but, instead, the function performs a hashing_trick() function. The hashing trick converts text into a sequence of indexes in a fixed-size hashing space:

  1. Finally, the function returns an integer-encoded version of the document:
vocab_size = 50encodeDocuments = [one_hot(doc, vocab_size) for doc in documents]print(encodeDocuments)

The output of the preceding code is as follows:

[[1, 39], [37, 40], [21, 19], [5, 40], [16], [36], [8, 19], [25, 37], [8, 40], [25, 44, 39, 26]]

Where the Well Done! and Good Work documents are represented by vectors [1, 39] [37,40] respectively. Also, you can observe ...

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Publisher Resources

ISBN: 9781788621755Supplemental Content