Mercurial > ift6266

annotate datasets/dataset.py @ 458:c0f738f0cef0

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author Yoshua Bengio <bengioy@iro.umontreal.ca>
date Thu, 27 May 2010 08:29:04 -0600
parents d6672a7daea5
children
rev   line source
163
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1 from dsetiter import DataIterator
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2
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3 class DataSet(object):
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4 def test(self, batchsize, bufsize=None):
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5 r"""
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6 Returns an iterator over the test examples.
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7
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8 Parameters
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9 batchsize (int) -- the size of the minibatches
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10 bufsize (int, optional) -- the size of the in-memory buffer,
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11 0 to disable.
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12 """
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13 return self._return_it(batchsize, bufsize, self._test)
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14
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15 def train(self, batchsize, bufsize=None):
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16 r"""
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17 Returns an iterator over the training examples.
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18
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19 Parameters
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20 batchsize (int) -- the size of the minibatches
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21 bufsize (int, optional) -- the size of the in-memory buffer,
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22 0 to disable.
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23 """
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24 return self._return_it(batchsize, bufsize, self._train)
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25
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26 def valid(self, batchsize, bufsize=None):
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27 r"""
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28 Returns an iterator over the validation examples.
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29
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30 Parameters
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31 batchsize (int) -- the size of the minibatches
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32 bufsize (int, optional) -- the size of the in-memory buffer,
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33 0 to disable.
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34 """
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35 return self._return_it(batchsize, bufsize, self._valid)
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36
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37 def _return_it(batchsize, bufsize, data):
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38 r"""
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39 Must return an iterator over the specified dataset (`data`).
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40
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41 Implement this in subclassses.
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42 """
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43 raise NotImplemented