def _buildBorderStructure(self, inmesh, hiddenmesh, outmesh):
self._buildSwipingStructure(inmesh, hiddenmesh, outmesh)
self.addModule(BiasUnit(name='bias'))
# build the motherconnections for the borders
if self.simpleborders:
if not 'borderconn' in self.predefined:
self.predefined['borderconn'] = MotherConnection(
hiddenmesh.componentIndim, name='bconn')
else:
if not 'bordconns' in self.predefined:
self.predefined['bordconns'] = {}
for dim, maxval in enumerate(self.dims):
if dim > 0 and self.symmetricdimensions:
self.predefined['bordconns'][dim] = self.predefined[
'bordconns'][0]
elif dim not in self.predefined['bordconns']:
self.predefined['bordconns'][dim] = {}
tmp = self.predefined['bordconns'][dim].copy()
if len(self.dims) == 1 and () not in tmp:
tmp[()] = MotherConnection(hiddenmesh.componentIndim,
name='bconn')
for t in iterCombinations(tupleRemoveItem(self.dims, dim)):
tc = self._canonicForm(t, dim)
if t == tc and t not in tmp:
# the connections from the borders are symetrical,
# so we need seperate ones only up to the middle
tmp[t] = MotherConnection(hiddenmesh.componentIndim,
name='bconn' + str(dim) +
str(t))
if self.extrapolateBorderValues:
p = self._extrapolateBorderAt(
t, self.predefined['bordconns'][dim])
if p != None:
tmp[t].params[:] = p
self.predefined['bordconns'][dim] = tmp
# link the bordering units to the bias, using the correct connection
for dim, maxval in enumerate(self.dims):
for unit in self._iterateOverUnits():
if self.simpleborders:
bconn = self.predefined['borderconn']
else:
tc = self._canonicForm(tupleRemoveItem(unit, dim), dim)
bconn = self.predefined['bordconns'][dim][tc]
hunits = []
if unit[dim] == 0:
for swipe in range(self.swipes):
if (swipe / 2**dim) % 2 == 0:
hunits.append(tuple(list(unit) + [swipe]))
if unit[dim] == maxval - 1:
for swipe in range(self.swipes):
if (swipe / 2**dim) % 2 == 1:
hunits.append(tuple(list(unit) + [swipe]))
for hunit in hunits:
self.addConnection(
SharedFullConnection(bconn, self['bias'],
hiddenmesh[hunit]))
def _buildBorderStructure(self, inmesh, hiddenmesh, outmesh):
self._buildSwipingStructure(inmesh, hiddenmesh, outmesh)
self.addModule(BiasUnit(name = 'bias'))
# build the motherconnections for the borders
if self.simpleborders:
if not 'borderconn' in self.predefined:
self.predefined['borderconn'] = MotherConnection(hiddenmesh.componentIndim, name = 'bconn')
else:
if not 'bordconns' in self.predefined:
self.predefined['bordconns'] = {}
for dim, maxval in enumerate(self.dims):
if dim > 0 and self.symmetricdimensions:
self.predefined['bordconns'][dim] = self.predefined['bordconns'][0]
elif dim not in self.predefined['bordconns']:
self.predefined['bordconns'][dim] = {}
tmp = self.predefined['bordconns'][dim].copy()
if len(self.dims) == 1 and () not in tmp:
tmp[()] = MotherConnection(hiddenmesh.componentIndim, name = 'bconn')
for t in iterCombinations(tupleRemoveItem(self.dims, dim)):
tc = self._canonicForm(t, dim)
if t == tc and t not in tmp:
# the connections from the borders are symmetrical,
# so we need separate ones only up to the middle
tmp[t] = MotherConnection(hiddenmesh.componentIndim, name = 'bconn'+str(dim)+str(t))
if self.extrapolateBorderValues:
p = self._extrapolateBorderAt(t, self.predefined['bordconns'][dim])
if p != None:
tmp[t].params[:] = p
self.predefined['bordconns'][dim] = tmp
# link the bordering units to the bias, using the correct connection
for dim, maxval in enumerate(self.dims):
for unit in self._iterateOverUnits():
if self.simpleborders:
bconn = self.predefined['borderconn']
else:
tc = self._canonicForm(tupleRemoveItem(unit, dim), dim)
bconn = self.predefined['bordconns'][dim][tc]
hunits = []
if unit[dim] == 0:
for swipe in range(self.swipes):
if (swipe/2**dim) % 2 == 0:
hunits.append(tuple(list(unit)+[swipe]))
if unit[dim] == maxval-1:
for swipe in range(self.swipes):
if (swipe/2**dim) % 2 == 1:
hunits.append(tuple(list(unit)+[swipe]))
for hunit in hunits:
self.addConnection(SharedFullConnection(bconn, self['bias'], hiddenmesh[hunit]))
def _canonicForm(self, tup, dim):
""" determine if there is a symetrical tuple of lower coordinates
@param dim: the removed coordinate. """
if not self.symmetricBorders:
return tup
canonic = []
for dim, maxval in enumerate(tupleRemoveItem(self.dims, dim)):
canonic.append(min(maxval - 1 - tup[dim], tup[dim]))
return tuple(canonic)
def _canonicForm(self, tup, dim):
""" determine if there is a symetrical tuple of lower coordinates
@param dim: the removed coordinate. """
if not self.symmetricBorders:
return tup
canonic = []
for dim, maxval in enumerate(tupleRemoveItem(self.dims, dim)):
canonic.append(min(maxval-1-tup[dim], tup[dim]))
return tuple(canonic)
