What are the utils functions in lasagne?

This recipe explains what are the utils functions in lasagne.

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Recipe Objective - What are the utils functions in lasagne?

Lasagne provides "lasagne.utils" class to work work with "int" types and "numpy" and "array" etc.

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Utils functions:-

1. lasagne.utils.floatX(arr) - Converts data to a numpy array of dtype "theano.config.floatX".

2. lasagne.utils.shared_empty(dim=2, dtype=None) - Creates empty Theano shared variable.

3. lasagne.utils.as_theano_expression(input) - Useful to transparently handle numpy arrays and Python scalars.

4. lasagne.utils.collect_shared_vars(expressions) - Returns all shared variables the given expression(s) depend on.

5. lasagne.utils.one_hot(x, m=None) - One-hot representation of integer vector.

6. lasagne.utils.unique(l) - Create a new list from l with duplicate entries removed, while preserving the original order.

7. lasagne.utils.compute_norms(array, norm_axes=None) - Compute incoming weight vector norms.

8. lasagne.utils.create_param(spec, shape, name=None) - Helper method to create Theano shared variables for layer parameters and to initialize them.

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