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comparison dataset.py @ 428:52b4908d8971

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simple example of theano
author Thierry Bertin-Mahieux <bertinmt@iro.umontreal.ca>
date Fri, 25 Jul 2008 16:59:57 -0400
parents 0231eeac11c9
children 739612d316a4 ce6b4fd3ab29
comparison
equal deleted inserted replaced
425:e2b46a8f2b7b 428:52b4908d8971
1452 1452
1453 Note that the expected semantics of the function differs in minibatch mode 1453 Note that the expected semantics of the function differs in minibatch mode
1454 (it takes minibatches of inputs and produces minibatches of outputs, as 1454 (it takes minibatches of inputs and produces minibatches of outputs, as
1455 documented in the class comment). 1455 documented in the class comment).
1456 1456
1457 TBM: are filedtypes the old field types (from input_dataset) or the new ones 1457 TBM: are fieldtypes the old field types (from input_dataset) or the new ones
1458 (for the new dataset created)? 1458 (for the new dataset created)?
1459 """ 1459 """
1460 self.input_dataset=input_dataset 1460 self.input_dataset=input_dataset
1461 self.function=function 1461 self.function=function
1462 self.output_names=output_names 1462 self.output_names=output_names
1463 #print 'self.output_names in afds:', self.output_names
1464 #print 'length in afds:', len(self.output_names)
1463 self.minibatch_mode=minibatch_mode 1465 self.minibatch_mode=minibatch_mode
1464 DataSet.__init__(self,description,fieldtypes) 1466 DataSet.__init__(self,description,fieldtypes)
1465 self.valuesHStack = values_hstack if values_hstack else input_dataset.valuesHStack 1467 self.valuesHStack = values_hstack if values_hstack else input_dataset.valuesHStack
1466 self.valuesVStack = values_vstack if values_vstack else input_dataset.valuesVStack 1468 self.valuesVStack = values_vstack if values_vstack else input_dataset.valuesVStack
1467 1469
1482 input_examples = zip(*input_fields) #makes so that [i] means example i 1484 input_examples = zip(*input_fields) #makes so that [i] means example i
1483 output_examples = [self.function(*input_example) 1485 output_examples = [self.function(*input_example)
1484 for input_example in input_examples] 1486 for input_example in input_examples]
1485 all_output_fields = zip(*output_examples) 1487 all_output_fields = zip(*output_examples)
1486 1488
1489 #print 'output_names=', self.output_names
1490 #print 'all_output_fields', all_output_fields
1491 #print 'len(all_output_fields)=', len(all_output_fields)
1487 all_outputs = Example(self.output_names, all_output_fields) 1492 all_outputs = Example(self.output_names, all_output_fields)
1488 #print 'input_fields', input_fields
1489 #print 'all_outputs', all_outputs
1490 if fieldnames==self.output_names: 1493 if fieldnames==self.output_names:
1491 rval = all_outputs 1494 rval = all_outputs
1492 else: 1495 else:
1493 rval = Example(fieldnames,[all_outputs[name] for name in fieldnames]) 1496 rval = Example(fieldnames,[all_outputs[name] for name in fieldnames])
1494 #print 'rval', rval 1497 #print 'rval', rval