class InspectTemporalMemoryTest(unittest.TestCase):
def setUp(self):
self.patternMachine = ConsecutivePatternMachine(100, 5)
self.sequenceMachine = SequenceMachine(self.patternMachine)
self.tm = InspectTemporalMemory(columnDimensions=[100],
cellsPerColumn=4,
initialPermanence=0.6,
connectedPermanence=0.5,
minThreshold=1,
maxNewSynapseCount=6,
permanenceIncrement=0.1,
permanenceDecrement=0.05,
activationThreshold=1)
def testFeedSequence(self):
sequence = self._generateSequence()
# Replace last pattern (before the None) with an unpredicted one
sequence[-2] = self.patternMachine.get(4)
self._feedSequence(sequence, sequenceLabel="Test")
self.assertEqual(len(self.tm.patterns), len(sequence))
self.assertEqual(len(self.tm.sequenceLabels), len(sequence))
self.assertEqual(len(self.tm.predictedActiveCellsList), len(sequence))
self.assertEqual(len(self.tm.predictedInactiveCellsList),
len(sequence))
self.assertEqual(len(self.tm.predictedActiveColumnsList),
len(sequence))
self.assertEqual(len(self.tm.predictedInactiveColumnsList),
len(sequence))
self.assertEqual(len(self.tm.unpredictedActiveColumnsList),
len(sequence))
self.assertEqual(self.tm.patterns[-2], self.patternMachine.get(4))
self.assertEqual(self.tm.sequenceLabels[-2], "Test")
self.assertEqual(len(self.tm.predictedActiveCellsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveCellsList[-2]), 5)
self.assertEqual(len(self.tm.predictedActiveColumnsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveColumnsList[-2]), 5)
self.assertEqual(len(self.tm.unpredictedActiveColumnsList[-2]), 5)
def testComputeStatistics(self):
sequence = self._generateSequence()
self._feedSequence(sequence) # train
self.tm.clearHistory()
self._feedSequence(sequence) # test
stats = self.tm.getStatistics()
self.assertEqual(len(stats), 5)
self.assertEqual(stats.predictedInactiveCells.sum, 0)
self.assertEqual(stats.predictedInactiveColumns.sum, 0)
self.assertEqual(stats.unpredictedActiveColumns.sum, 0)
# ==============================
# Helper functions
# ==============================
def _generateSequence(self):
numbers = range(0, 10)
sequence = self.sequenceMachine.generateFromNumbers(numbers)
sequence.append(None)
sequence *= 3
return sequence
def _feedSequence(self, sequence, sequenceLabel=None):
for pattern in sequence:
if pattern is None:
self.tm.reset()
else:
self.tm.compute(pattern, sequenceLabel=sequenceLabel)
class InspectTemporalMemoryTest(unittest.TestCase):
def setUp(self):
self.patternMachine = ConsecutivePatternMachine(100, 5)
self.sequenceMachine = SequenceMachine(self.patternMachine)
self.tm = InspectTemporalMemory(columnDimensions=[100],
cellsPerColumn=4,
initialPermanence=0.6,
connectedPermanence=0.5,
minThreshold=1,
maxNewSynapseCount=6,
permanenceIncrement=0.1,
permanenceDecrement=0.05,
activationThreshold=1)
def testFeedSequence(self):
sequence = self._generateSequence()
# Replace last pattern (before the None) with an unpredicted one
sequence[-2] = self.patternMachine.get(4)
self._feedSequence(sequence)
self.assertEqual(len(self.tm.predictedActiveCellsList), len(sequence))
self.assertEqual(len(self.tm.predictedInactiveCellsList), len(sequence))
self.assertEqual(len(self.tm.predictedActiveColumnsList), len(sequence))
self.assertEqual(len(self.tm.predictedInactiveColumnsList), len(sequence))
self.assertEqual(len(self.tm.unpredictedActiveColumnsList), len(sequence))
self.assertEqual(len(self.tm.predictedActiveCellsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveCellsList[-2]), 5)
self.assertEqual(len(self.tm.predictedActiveColumnsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveColumnsList[-2]), 5)
self.assertEqual(len(self.tm.unpredictedActiveColumnsList[-2]), 5)
def testComputeStatistics(self):
sequence = self._generateSequence()
self._feedSequence(sequence) # train
self.tm.clearHistory()
self._feedSequence(sequence) # test
stats = self.tm.getStatistics()
self.assertEqual(len(stats), 5)
self.assertEqual(stats[1][2], 0)
self.assertEqual(stats[3][2], 0)
self.assertEqual(stats[4][2], 0)
# ==============================
# Helper functions
# ==============================
def _generateSequence(self):
numbers = range(0, 10)
sequence = self.sequenceMachine.generateFromNumbers(numbers)
sequence.append(None)
sequence *= 3
return sequence
def _feedSequence(self, sequence):
for pattern in sequence:
if pattern is None:
self.tm.reset()
else:
self.tm.compute(pattern)
class InspectTemporalMemoryTest(unittest.TestCase):
def setUp(self):
self.patternMachine = ConsecutivePatternMachine(100, 5)
self.sequenceMachine = SequenceMachine(self.patternMachine)
self.tm = InspectTemporalMemory(columnDimensions=[100],
cellsPerColumn=4,
initialPermanence=0.6,
connectedPermanence=0.5,
minThreshold=1,
maxNewSynapseCount=6,
permanenceIncrement=0.1,
permanenceDecrement=0.05,
activationThreshold=1)
def testFeedSequence(self):
sequence = self._generateSequence()
# Replace last pattern (before the None) with an unpredicted one
sequence[-2] = self.patternMachine.get(4)
self._feedSequence(sequence, sequenceLabel="Test")
self.assertEqual(len(self.tm.patterns), len(sequence))
self.assertEqual(len(self.tm.sequenceLabels), len(sequence))
self.assertEqual(len(self.tm.predictedActiveCellsList), len(sequence))
self.assertEqual(len(self.tm.predictedInactiveCellsList), len(sequence))
self.assertEqual(len(self.tm.predictedActiveColumnsList), len(sequence))
self.assertEqual(len(self.tm.predictedInactiveColumnsList), len(sequence))
self.assertEqual(len(self.tm.unpredictedActiveColumnsList), len(sequence))
self.assertEqual(self.tm.patterns[-2], self.patternMachine.get(4))
self.assertEqual(self.tm.sequenceLabels[-2], "Test")
self.assertEqual(len(self.tm.predictedActiveCellsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveCellsList[-2]), 5)
self.assertEqual(len(self.tm.predictedActiveColumnsList[-2]), 0)
self.assertEqual(len(self.tm.predictedInactiveColumnsList[-2]), 5)
self.assertEqual(len(self.tm.unpredictedActiveColumnsList[-2]), 5)
self.assertTrue("Test" in self.tm.predictedActiveCellsForSequenceDict)
predictedActiveCells = reduce(lambda x, y: x | y,
self.tm.predictedActiveCellsList)
self.assertEqual(self.tm.predictedActiveCellsForSequenceDict["Test"],
predictedActiveCells)
sequence.reverse()
sequence.append(sequence.pop(0)) # Move None (reset) to the end
self._feedSequence(sequence, sequenceLabel="Test2")
self.assertTrue("Test" in self.tm.predictedActiveCellsForSequenceDict)
self.assertEqual(self.tm.predictedActiveCellsForSequenceDict["Test"],
predictedActiveCells)
self.assertTrue("Test2" in self.tm.predictedActiveCellsForSequenceDict)
self.assertNotEqual(self.tm.predictedActiveCellsForSequenceDict["Test"],
self.tm.predictedActiveCellsForSequenceDict["Test2"])
def testFeedSequenceNoSequenceLabel(self):
sequence = self._generateSequence()
self._feedSequence(sequence)
self.assertEqual(len(self.tm.predictedActiveCellsForSequenceDict), 0)
def testComputeStatistics(self):
sequence = self._generateSequence()
self._feedSequence(sequence) # train
self.tm.clearHistory()
self._feedSequence(sequence) # test
stats = self.tm.getStatistics()
self.assertEqual(len(stats), 7)
self.assertEqual(stats.predictedInactiveCells.sum, 0)
self.assertEqual(stats.predictedInactiveColumns.sum, 0)
self.assertEqual(stats.unpredictedActiveColumns.sum, 0)
self.assertEqual(stats.sequencesPredictedActiveCellsPerColumn.sum, None)
self.assertEqual(stats.sequencesPredictedActiveCellsShared.sum, None)
def testComputeStatisticsSequenceStatistics(self):
sequence = self._generateSequence()
self._feedSequence(sequence, "Test1")
sequence.reverse()
sequence.append(sequence.pop(0)) # Move None (reset) to the end
self._feedSequence(sequence, "Test2")
stats = self.tm.getStatistics()
self.assertEqual(stats.sequencesPredictedActiveCellsPerColumn.average, 1)
self.assertEqual(stats.sequencesPredictedActiveCellsShared.average, 1)
self._feedSequence(sequence, "Test3")
stats = self.tm.getStatistics()
self.assertEqual(stats.sequencesPredictedActiveCellsPerColumn.average, 1)
self.assertTrue(stats.sequencesPredictedActiveCellsShared.average > 1)
def testMapCellsToColumns(self):
columnsForCells = self.tm.mapCellsToColumns(set([0, 1, 2, 5, 399]))
self.assertEqual(columnsForCells[0], set([0, 1, 2]))
self.assertEqual(columnsForCells[1], set([5]))
self.assertEqual(columnsForCells[99], set([399]))
# ==============================
# Helper functions
# ==============================
def _generateSequence(self):
numbers = range(0, 10)
sequence = self.sequenceMachine.generateFromNumbers(numbers)
sequence.append(None)
sequence *= 3
return sequence
def _feedSequence(self, sequence, sequenceLabel=None):
for pattern in sequence:
if pattern is None:
self.tm.reset()
else:
self.tm.compute(pattern, sequenceLabel=sequenceLabel)