# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import unittest import py_paddle.swig_paddle as api import numpy as np from paddle.v2 import data_type from paddle.v2.data_feeder import DataFeeder class DataFeederTest(unittest.TestCase): def dense_reader(self, size): data = np.random.random(size) return data def sparse_binary_reader(self, high, size_limit, non_empty=False): num = np.random.randint(size_limit) # num could be 0 while non_empty and num == 0: num = np.random.randint(size_limit) return np.random.randint(high, size=num).tolist() def test_dense(self): def compare(input): feeder = DataFeeder([('image', data_type.dense_vector(784))], {'image': 0}) arg = feeder(input) output = arg.getSlotValue(0).copyToNumpyMat() input = np.array(input, dtype='float32') self.assertAlmostEqual(input.all(), output.all()) # test numpy array batch_size = 32 dim = 784 data = [] for i in xrange(batch_size): each_sample = [] each_sample.append(self.dense_reader(dim)) data.append(each_sample) compare(data) # each feature is a list data = [] for i in xrange(batch_size): each_sample = [] each_sample.append(self.dense_reader(dim).tolist()) data.append(each_sample) compare(data) # test tuple data = [] for i in xrange(batch_size): each_sample = (self.dense_reader(dim).tolist(), ) data.append(each_sample) compare(data) def test_sparse_binary(self): dim = 10000 batch_size = 32 data = [] for i in xrange(batch_size): each_sample = [] each_sample.append(self.sparse_binary_reader(dim, 50)) data.append(each_sample) feeder = DataFeeder([('input', data_type.sparse_binary_vector(dim))], {'input': 0}) arg = feeder(data) output = arg.getSlotValue(0) assert isinstance(output, api.Matrix) for i in xrange(batch_size): self.assertEqual(output.getSparseRowCols(i), data[i][0]) def test_sparse(self): dim = 10000 batch_size = 32 v = [] w = [] data = [] for dat in xrange(batch_size): each_sample = [] a = self.sparse_binary_reader(dim, 40, non_empty=True) b = self.dense_reader(len(a)).tolist() v.append(a) w.append(np.array(b, dtype="float32")) each_sample.append(zip(a, b)) data.append(each_sample) feeder = DataFeeder([('input', data_type.sparse_vector(dim))], {'input': 0}) arg = feeder(data) output = arg.getSlotValue(0) assert isinstance(output, api.Matrix) for i in xrange(batch_size): self.assertEqual(output.getSparseRowCols(i), v[i]) cols_value = output.getSparseRowColsVal(i) value = [val[1] for val in cols_value] value = np.array(value, dtype="float32") self.assertAlmostEqual(value.all(), w[i].all()) def test_integer(self): dim = 100 batch_size = 32 index = [] for i in xrange(batch_size): each_sample = [] each_sample.append(np.random.randint(dim)) index.append(each_sample) feeder = DataFeeder([('input', data_type.integer_value(dim))], {'input': 0}) arg = feeder(index) output = arg.getSlotIds(0).copyToNumpyArray() index = np.array(index, dtype='int') self.assertEqual(output.all(), index.flatten().all()) def test_integer_sequence(self): dim = 10000 batch_size = 32 start = [0] data = [] for i in xrange(batch_size): each_sample = [] each_sample.append( self.sparse_binary_reader( dim, 30, non_empty=True)) data.append(each_sample) start.append(len(each_sample[0]) + start[-1]) feeder = DataFeeder([('input', data_type.integer_value_sequence(dim))], {'input': 0}) arg = feeder(data) output_data = arg.getSlotIds(0).copyToNumpyArray() output_start = arg.getSlotSequenceStartPositions(0).copyToNumpyArray() index = [] for dat in data: index.extend(x for x in dat[0]) # only one feature, so dat[0] index = np.array(index, dtype='int') start = np.array(start, dtype='int') self.assertEqual(output_data.all(), index.all()) self.assertEqual(output_start.all(), start.all()) def test_multiple_features(self): batch_size = 2 data = [] for i in xrange(batch_size): each_sample = [] each_sample.append(np.random.randint(10)) each_sample.append( self.sparse_binary_reader( 20000, 40, non_empty=True)) each_sample.append(self.dense_reader(100)) data.append(each_sample) # test multiple features data_types = [('fea0', data_type.dense_vector(100)), ('fea1', data_type.sparse_binary_vector(20000)), ('fea2', data_type.integer_value(10))] feeder = DataFeeder(data_types, {'fea0': 2, 'fea1': 1, 'fea2': 0}) arg = feeder(data) output_dense = arg.getSlotValue(0).copyToNumpyMat() output_sparse = arg.getSlotValue(1) output_index = arg.getSlotIds(2).copyToNumpyArray() for i in xrange(batch_size): self.assertEqual(output_dense[i].all(), data[i][2].all()) self.assertEqual(output_sparse.getSparseRowCols(i), data[i][1]) self.assertEqual(output_index[i], data[i][0]) # reader returns 3 featreus, but only use 2 features data_types = [('fea0', data_type.dense_vector(100)), ('fea2', data_type.integer_value(10))] feeder = DataFeeder(data_types, {'fea0': 2, 'fea2': 0}) arg = feeder(data) output_dense = arg.getSlotValue(0).copyToNumpyMat() output_index = arg.getSlotIds(1).copyToNumpyArray() for i in xrange(batch_size): self.assertEqual(output_dense[i].all(), data[i][2].all()) self.assertEqual(output_index[i], data[i][0]) def test_multiple_features_tuple(self): batch_size = 2 data = [] for i in xrange(batch_size): a = np.random.randint(10) b = self.sparse_binary_reader(20000, 40, non_empty=True) c = self.dense_reader(100) each_sample = (a, b, c) data.append(each_sample) # test multiple features data_types = [('fea0', data_type.dense_vector(100)), ('fea1', data_type.sparse_binary_vector(20000)), ('fea2', data_type.integer_value(10))] feeder = DataFeeder(data_types, {'fea0': 2, 'fea1': 1, 'fea2': 0}) arg = feeder(data) out_dense = arg.getSlotValue(0).copyToNumpyMat() out_sparse = arg.getSlotValue(1) out_index = arg.getSlotIds(2).copyToNumpyArray() for i in xrange(batch_size): self.assertEqual(out_dense[i].all(), data[i][2].all()) self.assertEqual(out_sparse.getSparseRowCols(i), data[i][1]) self.assertEqual(out_index[i], data[i][0]) if __name__ == '__main__': api.initPaddle("--use_gpu=0") unittest.main()