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Python CoordinateEncoder.write方法代码示例

本文整理汇总了Python中nupic.encoders.coordinate.CoordinateEncoder.write方法的典型用法代码示例。如果您正苦于以下问题:Python CoordinateEncoder.write方法的具体用法?Python CoordinateEncoder.write怎么用?Python CoordinateEncoder.write使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在nupic.encoders.coordinate.CoordinateEncoder的用法示例。


在下文中一共展示了CoordinateEncoder.write方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: CoordinateEncoderTest

# 需要导入模块: from nupic.encoders.coordinate import CoordinateEncoder [as 别名]
# 或者: from nupic.encoders.coordinate.CoordinateEncoder import write [as 别名]

#.........这里部分代码省略.........
    self.assertDecreasingOverlaps(overlaps)


  def testEncodeRelativePositionsAndRadii(self):
    # As radius increases and positions change, the overlap should decrease
    overlaps = overlapsForRelativeAreas(999, 25, np.array([100, 200]), 5,
                                        dPosition=np.array([1, 1]),
                                        dRadius=1,
                                        num=5)
    self.assertDecreasingOverlaps(overlaps)


  def testEncodeUnrelatedAreas(self):
    """
    assert unrelated areas don"t share bits
    (outside of chance collisions)
    """
    avgThreshold = 0.3

    maxThreshold = 0.12
    overlaps = overlapsForUnrelatedAreas(1499, 37, 5)
    self.assertLess(np.max(overlaps), maxThreshold)
    self.assertLess(np.average(overlaps), avgThreshold)

    maxThreshold = 0.12
    overlaps = overlapsForUnrelatedAreas(1499, 37, 10)
    self.assertLess(np.max(overlaps), maxThreshold)
    self.assertLess(np.average(overlaps), avgThreshold)

    maxThreshold = 0.17
    overlaps = overlapsForUnrelatedAreas(999, 25, 10)
    self.assertLess(np.max(overlaps), maxThreshold)
    self.assertLess(np.average(overlaps), avgThreshold)

    maxThreshold = 0.25
    overlaps = overlapsForUnrelatedAreas(499, 13, 10)
    self.assertLess(np.max(overlaps), maxThreshold)
    self.assertLess(np.average(overlaps), avgThreshold)


  def testEncodeAdjacentPositions(self, verbose=False):
    repetitions = 100
    n = 999
    w = 25
    radius = 10
    minThreshold = 0.75
    avgThreshold = 0.90
    allOverlaps = np.empty(repetitions)

    for i in range(repetitions):
      overlaps = overlapsForRelativeAreas(n, w,
                                          np.array([i * 10, i * 10]), radius,
                                          dPosition=np.array([0, 1]),
                                          num=1)
      allOverlaps[i] = overlaps[0]

    self.assertGreater(np.min(allOverlaps), minThreshold)
    self.assertGreater(np.average(allOverlaps), avgThreshold)

    if verbose:
      print ("===== Adjacent positions overlap "
             "(n = {0}, w = {1}, radius = {2}) ===").format(n, w, radius)
      print "Max: {0}".format(np.max(allOverlaps))
      print "Min: {0}".format(np.min(allOverlaps))
      print "Average: {0}".format(np.average(allOverlaps))


  def assertDecreasingOverlaps(self, overlaps):
    self.assertEqual((np.diff(overlaps) > 0).sum(), 0)


  @unittest.skipUnless(
      capnp, "pycapnp is not installed, skipping serialization test.")
  def testReadWrite(self):
    coordinate = np.array([100, 200])
    radius = 5
    output1 = encode(self.encoder, coordinate, radius)

    proto1 = CoordinateEncoderProto.new_message()
    self.encoder.write(proto1)

    # Write the proto to a temp file and read it back into a new proto
    with tempfile.TemporaryFile() as f:
      proto1.write(f)
      f.seek(0)
      proto2 = CoordinateEncoderProto.read(f)

    encoder = CoordinateEncoder.read(proto2)

    self.assertIsInstance(encoder, CoordinateEncoder)
    self.assertEqual(encoder.w, self.encoder.w)
    self.assertEqual(encoder.n, self.encoder.n)
    self.assertEqual(encoder.name, self.encoder.name)
    self.assertEqual(encoder.verbosity, self.encoder.verbosity)

    coordinate = np.array([100, 200])
    radius = 5
    output2 = encode(encoder, coordinate, radius)

    self.assertTrue(np.array_equal(output1, output2))
开发者ID:mewbak,项目名称:nupic,代码行数:104,代码来源:coordinate_test.py


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