Exercise:Self-Taught Learning
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===Step Two: Train the sparse autoencoder=== | ===Step Two: Train the sparse autoencoder=== | ||
- | Next, we will train the unlabeled dataset on the sparse autoencoder, using the same <tt>sparseAutoencoderCost.m</tt> function from the previous assignments. (Use the frameworks from previous assignments to ensure that your code is working and vectorized.) The training step should take less than | + | Next, we will train the unlabeled dataset on the sparse autoencoder, using the same <tt>sparseAutoencoderCost.m</tt> function from the previous assignments. (Use the frameworks from previous assignments to ensure that your code is working and vectorized.) The training step should take less than 25 minutes (on a reasonably fast computer). When it is completed, a visualization of pen strokes should be displayed. |
[[File:selfTaughtFeatures.png]] | [[File:selfTaughtFeatures.png]] |