tensorflow/models · error · ValueError

unknown weight_method %s

Error message

unknown weight_method %s

What it means

Error "unknown weight_method %s" thrown in tensorflow/models.

Source

Thrown at official/projects/edgetpu/vision/modeling/heads/bifpn_head.py:403

    elif self.weight_method == 'channel_attn':
      edge_weights = [tf.cast(var, dtype=dtype) for var in self.vars]
      normalized_weights = tf.nn.softmax(tf.stack(edge_weights, -1), axis=-1)
      nodes = tf.stack(nodes, axis=-1)
      new_node = tf.reduce_sum(nodes * normalized_weights, -1)
    elif self.weight_method == 'channel_fastattn':
      edge_weights = [
          tf.nn.relu(tf.cast(var, dtype=dtype)) for var in self.vars
      ]
      weights_sum = add_n(edge_weights)
      nodes = [
          nodes[i] * edge_weights[i] / (weights_sum + 0.0001)
          for i in range(len(nodes))
      ]
      new_node = add_n(nodes)
    elif self.weight_method == 'sum':
      new_node = add_n(nodes)
    else:
      raise ValueError('unknown weight_method %s' % self.weight_method)

    return new_node

  def _add_wsm(self, initializer, shape=None):
    for i, _ in enumerate(self.inputs_offsets):
      name = 'WSM' + ('' if i == 0 else '_' + str(i))
      self.vars.append(
          self.add_weight(initializer=initializer, name=name, shape=shape))

  def build(self, feats_shape):
    for i, input_offset in enumerate(self.inputs_offsets):
      name = 'resample_{}_{}_{}'.format(i, input_offset, len(feats_shape))
      self.resample_layers.append(
          ResampleFeatureMap(
              self.feat_level,
              self.fpn_num_filters,
              self.apply_bn_for_resampling,
              self.is_training_bn,

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/projects/edgetpu/vision/modeling/heads/bifpn_head.py:403 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tensorflow/models@e006f5f0d5 (2026-08-24). Data as JSON: /api/errors/afd0c4a484b497fc. Report an issue: GitHub.