def testReset(self):
self.unionPooler = SimpleUnionPooler(numInputs=2048, historyLength=2)
activeCells = [13, 42, 58, 198]
outputVector = numpy.zeros(shape=(2048, ))
for i in xrange(len(activeCells)):
self.unionPooler.unionIntoArray(activeCells, outputVector)
self.unionPooler.reset()
self.assertEqual(len(self.unionPooler._activeCellsHistory), 0)
self.assertEqual(sum(self.unionPooler._unionSDR), 0)
def testDimensionError(self):
self.unionPooler = SimpleUnionPooler(numInputs=2048, historyLength=2)
outputVector = numpy.zeros(shape=(2048, ))
activeCells = [2049]
with self.assertRaises(ValueError):
self.unionPooler.unionIntoArray(activeCells, outputVector)
activeCells = [1, 2, 3]
outputVector = numpy.zeros(shape=(2047, ))
with self.assertRaises(ValueError):
self.unionPooler.unionIntoArray(activeCells, outputVector)
def testHistoryLength(self):
self.unionPooler = SimpleUnionPooler(numInputs=2048, historyLength=2)
activeCells = []
activeCells.append([1, 3, 4])
activeCells.append([101, 302, 405])
activeCells.append([240, 3, 858])
activeCellsUnion = [101, 302, 405, 240, 3, 858]
outputVector = numpy.zeros(shape=(2048, ))
for i in xrange(len(activeCells)):
inputVector = numpy.zeros(shape=(2048, ))
inputVector[numpy.array(activeCells[i])] = 1
self.unionPooler.unionIntoArray(activeCells[i], outputVector)
self.assertSetEqual(set(numpy.where(outputVector)[0]),
set(activeCellsUnion))
def testUnionMinHistory(self):
activeCells = []
activeCells.append([1, 3, 4])
activeCells.append([101, 302, 405])
activeCellsUnion = [1, 3, 4, 101, 302, 405]
unionPooler = SimpleUnionPooler(numInputs=2048, historyLength=10,
minHistory= 2)
# Should output all zeros
outputVector = numpy.zeros(shape=(2048,))
unionPooler.unionIntoArray(activeCells[0], outputVector)
self.assertSetEqual(set(numpy.where(outputVector)[0]), set())
self.assertAlmostEqual(unionPooler.getSparsity(), 0.0)
# Should output activeCellsUnion
outputVector = numpy.zeros(shape=(2048,))
unionPooler.unionIntoArray(activeCells[1], outputVector)
self.assertSetEqual(set(numpy.where(outputVector)[0]),
set(activeCellsUnion))
self.assertAlmostEqual(unionPooler.getSparsity(), 6.0/2048.0)
def setUp(self):
self.unionPooler = SimpleUnionPooler(numInputs=2048, historyLength=10)
