def _compute_scope(self, *value_scopes):
if not self._values:
raise StructureError("%s is missing input values." % self)
value_scopes = self._gather_input_scopes(*value_scopes)
if self._num_prods == 1:
return [Scope.merge_scopes(chain.from_iterable(value_scopes))]
value_scopes_list = [Scope.merge_scopes(pvs) for pvs in product(*[vs for
vs in value_scopes])]
return value_scopes_list
def _compute_valid(self, weight_scopes, latent_indicators_scopes,
*value_scopes):
# If already invalid, return None
if (any(s is None for s in value_scopes) or
(self._latent_indicators and latent_indicators_scopes is None)):
return None
flat_value_scopes, latent_indicators_scopes_, *value_scopes_ = self._get_flat_value_scopes(
weight_scopes, latent_indicators_scopes, *value_scopes)
# IndicatorLeaf
if self._latent_indicators:
# Verify number of IndicatorLeaf
if len(latent_indicators_scopes_
) != len(flat_value_scopes) * self._num_sums:
raise StructureError(
"Number of IndicatorLeaf (%s) and values (%s) does "
"not match for %s" %
(len(latent_indicators_scopes_),
len(flat_value_scopes) * self._num_sums, self))
# Check if scope of all IndicatorLeaf is just one and the same variable
if len(Scope.merge_scopes(
latent_indicators_scopes_)) > self._num_sums:
return None
# Check sum for completeness wrt values
first_scope = flat_value_scopes[0]
if any(s != first_scope for s in flat_value_scopes[1:]):
self.info("%s is not complete with input value scopes %s", self,
flat_value_scopes)
return None
return self._compute_scope(weight_scopes, latent_indicators_scopes,
*value_scopes)
def _compute_valid(self, weight_scopes, ivs_scopes, *value_scopes):
if not self._values:
raise StructureError("%s is missing input values" % self)
_, ivs_scopes_, *value_scopes_ = self._gather_input_scopes(weight_scopes,
ivs_scopes,
*value_scopes)
# If already invalid, return None
if (any(s is None for s in value_scopes_)
or (self._ivs and ivs_scopes_ is None)):
return None
flat_value_scopes = list(chain.from_iterable(value_scopes_))
# IVs
if self._ivs:
# Verify number of IVs
if len(ivs_scopes_) != len(flat_value_scopes):
raise StructureError("Number of IVs (%s) and values (%s) does "
"not match for %s"
% (len(ivs_scopes_), len(flat_value_scopes),
self))
# Check if scope of all IVs is just one and the same variable
if len(Scope.merge_scopes(ivs_scopes_)) > 1:
return None
# Check sum for completeness wrt values
first_scope = flat_value_scopes[0]
if any(s != first_scope for s in flat_value_scopes[1:]):
self.__info("%s is not complete with input value scopes %s",
self, flat_value_scopes)
return None
return self._compute_scope(weight_scopes, ivs_scopes, *value_scopes)
def _compute_valid(self, weight_scopes, ivs_scopes, *value_scopes):
flat_value_scopes, ivs_scopes_, *value_scopes_ = self._get_flat_value_scopes(
weight_scopes, ivs_scopes, *value_scopes)
# If already invalid, return None
if (any(s is None for s in value_scopes_)
or (self._ivs and ivs_scopes_ is None)):
return None
# Split the flat value scopes based on value input sizes
split_indices = np.cumsum(self._sum_sizes)[:-1]
# IVs
if self._ivs:
# Verify number of IVs
if len(ivs_scopes_) != len(flat_value_scopes):
raise StructureError(
"Number of IVs (%s) and values (%s) does "
"not match for %s" %
(len(ivs_scopes_), len(flat_value_scopes), self))
# Go over IVs involved for each sum. Scope size should be exactly one
for iv_scopes_for_sum in np.split(ivs_scopes_, split_indices):
if len(Scope.merge_scopes(iv_scopes_for_sum)) != 1:
return None
# Go over value input scopes for each sum being modeled. Within a single sum, the scope of
# all the inputs should be the same
for scope_slice in np.split(flat_value_scopes, split_indices):
first_scope = scope_slice[0]
if any(s != first_scope for s in scope_slice[1:]):
self.info("%s is not complete with input value scopes %s",
self, flat_value_scopes)
return None
return self._compute_scope(weight_scopes, ivs_scopes, *value_scopes)
def _compute_scope(self, weight_scopes, ivs_scopes, *value_scopes):
if not self._values:
raise StructureError("%s is missing input values" % self)
_, ivs_scopes, *value_scopes = self._gather_input_scopes(weight_scopes,
ivs_scopes,
*value_scopes)
flat_value_scopes = list(chain.from_iterable(value_scopes))
if self._ivs:
flat_value_scopes.extend(ivs_scopes)
return [Scope.merge_scopes(flat_value_scopes)]
def _compute_scope(self, *value_scopes):
if not self._values:
raise StructureError("%s is missing input values." % self)
# Gather and flatten value scopes
flat_value_scopes = list(chain.from_iterable(self._gather_input_scopes(
*value_scopes)))
# Divide gathered and flattened value scopes into sublists, one per
# modeled product op.
prod_input_sizes = np.cumsum(np.array(self._prod_input_sizes)).tolist()
prod_input_sizes.insert(0, 0)
value_scopes_lists = [flat_value_scopes[start:stop] for start, stop in
zip(prod_input_sizes[:-1], prod_input_sizes[1:])]
return [Scope.merge_scopes(vsl) for vsl in value_scopes_lists]
def _compute_scope(self, weight_scopes, ivs_scopes, *value_scopes):
flat_value_scopes, ivs_scopes, *value_scopes = self._get_flat_value_scopes(
weight_scopes, ivs_scopes, *value_scopes)
if self._ivs:
sublist_size = int(len(ivs_scopes) / self._num_sums)
# Divide gathered ivs scopes into sublists, one per modelled Sum node.
ivs_scopes_sublists = [
ivs_scopes[i:i + sublist_size]
for i in range(0, len(ivs_scopes), sublist_size)
]
return [
Scope.merge_scopes(
flat_value_scopes +
ivs_scopes_sublists[i] if self._ivs else flat_value_scopes)
for i in range(self._num_sums)
]
def _compute_scope(self, weight_scopes, ivs_scopes, *value_scopes):
flat_value_scopes, ivs_scopes, *value_scopes = self._get_flat_value_scopes(
weight_scopes, ivs_scopes, *value_scopes)
split_indices = np.cumsum(self._sum_sizes)[:-1]
# Divide gathered value scopes into sublists, one per modelled Sum node
value_scopes_sublists = [
arr.tolist() for arr in np.split(flat_value_scopes, split_indices)
]
if self._ivs:
# Divide gathered ivs scopes into sublists, one per modelled Sum node
ivs_scopes_sublists = [
arr.tolist() for arr in np.split(ivs_scopes, split_indices)
]
# Add respective ivs scope to value scope list of each Sum node
for val, ivs in zip(value_scopes_sublists, ivs_scopes_sublists):
val.extend(ivs)
return [
Scope.merge_scopes(val_scope)
for val_scope in value_scopes_sublists
]
def _compute_scope(self):
return [
Scope(self, i) for i in range(self._num_vars)
for _ in range(self._num_components)
]
def _compute_scope(self, *value_scopes):
if not self._values:
raise StructureError("%s is missing input values." % self)
value_scopes = self._gather_input_scopes(*value_scopes)
return [Scope.merge_scopes(chain.from_iterable(value_scopes))]
def _compute_scope(self, *value_scopes, check_valid=False):
flat_value_scopes = self._gather_input_scopes(*value_scopes)
value_scopes_grid = [
np.asarray(vs).reshape(self._spatial_dim_sizes + [-1])
for vs in flat_value_scopes
]
value_scopes_concat = np.concatenate(value_scopes_grid, axis=2)
dilate = self._dilation_rate
kernel_size = self._kernel_size
grid_dims = self._spatial_dim_sizes
strides = self._strides
input_channels = self._num_input_channels()
pad_left, pad_right, pad_top, pad_bottom = self.pad_sizes()
if any(p != 0 for p in [pad_right, pad_left, pad_top, pad_bottom]):
padded_value_scopes_concat = np.empty(
(pad_top + grid_dims[0] + pad_bottom,
pad_left + grid_dims[1] + pad_right, input_channels),
dtype=Scope)
# Pad with empty scopes
empty_scope = Scope.merge_scopes([])
padded_value_scopes_concat[:, :pad_left] = empty_scope
padded_value_scopes_concat[:pad_top, :] = empty_scope
padded_value_scopes_concat[-pad_bottom:, :] = empty_scope
padded_value_scopes_concat[:, -pad_right:] = empty_scope
padded_value_scopes_concat[
pad_top:pad_top + value_scopes_concat.shape[0],
pad_left:pad_left +
value_scopes_concat.shape[0]] = value_scopes_concat
value_scopes_concat = padded_value_scopes_concat
scope_list = []
kernel_size0, kernel_size1 = self._effective_kernel_size()
# Reset grid dims as we might have padded the scopes
grid_dims = value_scopes_concat.shape[:2]
for row in range(0, grid_dims[0] - kernel_size0 + 1, strides[0]):
row_indices = list(range(row, row + kernel_size0, dilate[0]))
for col in range(0, grid_dims[1] - kernel_size1 + 1, strides[1]):
col_indices = list(range(col, col + kernel_size1, dilate[1]))
for channel in range(self._num_channels):
single_scope = []
for im_row, kernel_row in zip(row_indices,
range(kernel_size[0])):
for im_col, kernel_col in zip(col_indices,
range(kernel_size[1])):
single_scope.append(value_scopes_concat[
im_row, im_col,
self._sparse_connections[kernel_row,
kernel_col, channel]])
# Ensure valid
if check_valid:
for sc1, sc2 in itertools.combinations(
single_scope, 2):
if sc1 & sc2:
# Invalid if intersection not empty
self.logger.warn(
"{} is not decomposable".format(self))
return None
scope_list.append(Scope.merge_scopes(single_scope))
return scope_list