!9003 Fix mistakes in docstring.

From: @yuhanshi
Reviewed-by: @wuxuejian,@ouwenchang
Signed-off-by: @wuxuejian

mindspore/explainer/benchmark/_attribution/class_sensitivity.py

@@ -16,10 +16,8 @@
 
 import numpy as np
 
-from mindspore import Tensor
 from .metric import LabelAgnosticMetric
 from ... import _operators as ops
-from ...explanation._attribution.attribution import Attribution
 from ..._utils import calc_correlation
 
 
@@ -35,12 +33,12 @@ class ClassSensitivity(LabelAgnosticMetric):
 
     """
 
-    def evaluate(self, explainer: Attribution, inputs: Tensor) -> np.ndarray:
+    def evaluate(self, explainer, inputs):
         """
         Evaluate class sensitivity on a single data sample.
 
         Args:
-            explainer (Attribution): The explainer to be evaluated, see `mindspore.explainer.explanation`.
+            explainer (Explanation): The explainer to be evaluated, see `mindspore.explainer.explanation`.
             inputs (Tensor): A data sample, a 4D tensor of shape :math:`(N, C, H, W)`.
 
         Returns:
@@ -49,7 +47,8 @@ class ClassSensitivity(LabelAgnosticMetric):
         Examples:
             >>> import mindspore as ms
             >>> from mindspore.explainer.explanation import Gradient
-            >>> gradient = Gradient()
+            >>> model = resnet(10)
+            >>> gradient = Gradient(model)
             >>> x = ms.Tensor(np.random.rand(1, 3, 224, 224), ms.float32)
             >>> class_sensitivity = ClassSensitivity()
             >>> res = class_sensitivity.evaluate(gradient, x)

mindspore/explainer/benchmark/_attribution/robustness.py

@@ -14,21 +14,14 @@
 # ============================================================================
 """Robustness."""
 
-from typing import Optional, Union
-
 import numpy as np
 
 import mindspore as ms
 import mindspore.nn as nn
-from mindspore import Tensor
 from mindspore import log
 from .metric import LabelSensitiveMetric
-from ...explanation._attribution import Attribution
 from ...explanation._attribution._perturbation.replacement import RandomPerturb
 
-_Array = np.ndarray
-_Label = Union[ms.Tensor, int]
-
 
 class Robustness(LabelSensitiveMetric):
     """
@@ -39,12 +32,12 @@ class Robustness(LabelSensitiveMetric):
         num_labels (int): Number of classes in the dataset.
 
     Examples:
-    >>> from mindspore.explainer.benchmark import Robustness
-    >>> num_labels = 100
-    >>> robustness = Robustness(num_labels)
+        >>> from mindspore.explainer.benchmark import Robustness
+        >>> num_labels = 100
+        >>> robustness = Robustness(num_labels)
     """
 
-    def __init__(self, num_labels: int, activation_fn=nn.Softmax()):
+    def __init__(self, num_labels, activation_fn=nn.Softmax()):
         super().__init__(num_labels)
 
         self._perturb = RandomPerturb()
@@ -52,12 +45,7 @@ class Robustness(LabelSensitiveMetric):
         self._threshold = 0.1  # threshold to generate perturbation
         self._activation_fn = activation_fn
 
-    def evaluate(self,
-                 explainer: Attribution,
-                 inputs: Tensor,
-                 targets: _Label,
-                 saliency: Optional[Tensor] = None
-                 ) -> _Array:
+    def evaluate(self, explainer, inputs, targets, saliency=None):
         """
         Evaluate robustness on single sample.
 

mindspore/explainer/explanation/_attribution/_perturbation/ablation.py

@@ -48,7 +48,7 @@ class Ablation:
             inputs (np.ndarray): Input array to perturb. The first dim of inputs is assumed to be the batch size, i.e.,
                 number of samples.
             reference (np.ndarray or float): Array of values to replace the elements in the original inputs. The shape
-                of reference must math the inputs. If scalar is provided, the perturbed elements will be assigned the
+                of reference must match the inputs. If scalar is provided, the perturbed elements will be assigned the
                 given value..
             masks (np.ndarray): Several boolean array to mark the perturbed positions. True marks the pixels to be
                 perturbed, otherwise the pixels will be kept. The shape of masks is assumed to be
@@ -134,9 +134,9 @@ class AblationWithSaliency(Ablation):
                 saliency is expected to be: [batch_size, optional(num_channels), *spatial_size]. If multi-channel
                 saliency is provided, an averaged saliency will be taken to calculate pixel order in spatial dimension.
             num_channels (optional[int]): Number of channels of the input data. In order to match the shape of inputs,
-                num_channels should be provided when input data have channels dimension, even if num_channel. If None is
-                provided, the inputs is assumed to be no-channel data, and the generated mask will have no channel
-                dimension. Default: None.
+                num_channels should be provided when input data have channels dimension, even if num_channel is 1.
+                If None is provided, the inputs is assumed to be no-channel data, and the generated mask will have
+                no channel dimension. Default: None.
 
         Return:
             mask (np.ndarray): boolen mask for generate perturbations.

mindspore/explainer/explanation/_attribution/_perturbation/occlusion.py

@@ -15,7 +15,6 @@
 """Occlusion explainer."""
 
 import math
-from typing import Tuple, Union
 
 import numpy as np
 from numpy.lib.stride_tricks import as_strided
@@ -23,15 +22,11 @@ from numpy.lib.stride_tricks import as_strided
 import mindspore as ms
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.nn import Cell
 from .ablation import Ablation
 from .perturbation import PerturbationAttribution
 from .replacement import Constant
 from ...._utils import abs_max
 
-_Array = np.ndarray
-_Label = Union[int, Tensor]
-
 
 def _generate_patches(array, window_size, stride):
     """View as windows."""
@@ -67,25 +62,26 @@ class Occlusion(PerturbationAttribution):
         network (Cell): Specify the black-box model to be explained.
 
     Inputs:
-            inputs (Tensor): The input data to be explained, a 4D tensor of shape :math:`(N, C, H, W)`.
-            targets (Tensor, int): The label of interest. It should be a 1D or 0D tensor, or an integer.
-                If it is a 1D tensor, its length should be the same as `inputs`.
+        inputs (Tensor): The input data to be explained, a 4D tensor of shape :math:`(N, C, H, W)`.
+        targets (Tensor, int): The label of interest. It should be a 1D or 0D tensor, or an integer.
+            If it is a 1D tensor, its length should be the same as `inputs`.
 
     Outputs:
-            Tensor, a 4D tensor of shape :math:`(N, 1, H, W)`.
+        Tensor, a 4D tensor of shape :math:`(N, 1, H, W)`.
 
     Example:
         >>> from mindspore.explainer.explanation import Occlusion
-        >>> net = resnet50(10)
+        >>> from mindspore.train.serialization import load_checkpoint, load_param_into_net
+        >>> network = resnet50(10)
         >>> param_dict = load_checkpoint("resnet50.ckpt")
-        >>> load_param_into_net(net, param_dict)
-        >>> occlusion = Occlusion(net)
-        >>> x = ms.Tensor(np.random.rand([1, 3, 224, 224]), ms.float32)
+        >>> load_param_into_net(network, param_dict)
+        >>> occlusion = Occlusion(network)
+        >>> x = Tensor(np.random.rand([1, 3, 224, 224]), ms.float32)
         >>> label = 1
         >>> saliency = occlusion(x, label)
     """
 
-    def __init__(self, network: Cell, activation_fn: Cell = nn.Softmax()):
+    def __init__(self, network, activation_fn=nn.Softmax()):
         super().__init__(network, activation_fn)
 
         self._ablation = Ablation(perturb_mode='Deletion')
@@ -94,7 +90,7 @@ class Occlusion(PerturbationAttribution):
         self._num_sample_per_dim = 32  # specify the number of perturbations each dimension.
         self._num_per_eval = 32  # number of perturbations each evaluation step.
 
-    def __call__(self, inputs: Tensor, targets: _Label) -> Tensor:
+    def __call__(self, inputs, targets):
         """Call function for 'Occlusion'."""
         self._verify_data(inputs, targets)
 
@@ -145,11 +141,11 @@ class Occlusion(PerturbationAttribution):
             outputs_diff.reshape(outputs_diff.shape + (1,) * (len(masks.shape) - 2)) * masks).sum(axis=1).clip(1e-6)
         weights += masks.sum(axis=1)
 
-        attribution = self._aggregation_fn(ms.Tensor(total_attribution / weights))
+        attribution = self._aggregation_fn(Tensor(total_attribution / weights))
         return attribution
 
     @staticmethod
-    def _generate_masks(inputs: Tensor, window_size: Tuple[int, ...], strides: Tuple[int, ...]) -> _Array:
+    def _generate_masks(inputs, window_size, strides):
         """Generate masks to perturb contiguous regions."""
         total_dim = np.prod(inputs.shape[1:]).item()
         template = np.arange(total_dim).reshape(inputs.shape[1:])