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tf.GraphKeys
2022-07-26 19:12:00 【Wanderer001】
用于图形集合的标准名称。标准库使用各种名称来收集和检索与图关联的值。比如tf.Optimizer子类默认优化tf.GraphKeys下收集的变量。如果没有指定TRAINABLE_VARIABLES,也可以传递一个显式的变量列表。
定义了以下标准键:
- GLOBAL_VARIABLES:默认的变量对象集合,在分布式环境中共享(模型变量是这些对象的子集)。
- LOCAL_VARIABLES:每台机器的局部变量对象的子集,通常用于临时变量。
- MODEL_VARIABLES:模型中用于推理(前馈)的变量对象的子集。
- TRAINABLE_VARIABLES:优化器将训练的变量对象的子集。
QUEUE_RUNNERS:QueueRunner对象,用于为计算生成输入。- MOVING_AVERAGE_VARIABLES:也将保持移动平均线的变量对象的子集。
REGULARIZATION_LOSSES:在构建图期间收集的正则化损失。- SUMMARIES:日志生成相关的张量。
定义了以下标准键,但它们的集合不像其他键那样自动填充:
WEIGHTSBIASESACTIVATIONS
类成员:
ACTIVATIONS = 'activations'ASSET_FILEPATHS = 'asset_filepaths'BIASES = 'biases'CONCATENATED_VARIABLES = 'concatenated_variables'COND_CONTEXT = 'cond_context'EVAL_STEP = 'eval_step'GLOBAL_STEP = 'global_step'GLOBAL_VARIABLES = 'variables'INIT_OP = 'init_op'LOCAL_INIT_OP = 'local_init_op'LOCAL_RESOURCES = 'local_resources'LOCAL_VARIABLES = 'local_variables'LOSSES = 'losses'METRIC_VARIABLES = 'metric_variables'MODEL_VARIABLES = 'model_variables'MOVING_AVERAGE_VARIABLES = 'moving_average_variables'QUEUE_RUNNERS = 'queue_runners'READY_FOR_LOCAL_INIT_OP = 'ready_for_local_init_op'READY_OP = 'ready_op'REGULARIZATION_LOSSES = 'regularization_losses'RESOURCES = 'resources'SAVEABLE_OBJECTS = 'saveable_objects'SAVERS = 'savers'SUMMARIES = 'summaries'SUMMARY_OP = 'summary_op'TABLE_INITIALIZERS = 'table_initializer'TRAINABLE_RESOURCE_VARIABLES = 'trainable_resource_variables'TRAINABLE_VARIABLES = 'trainable_variables'TRAIN_OP = 'train_op'UPDATE_OPS = 'update_ops'这是一个tensorflow的计算图中内置的一个集合,其中会保存一些需要在训练操作之前完成的操作,并配合tf.control_dependencies函数使用。VARIABLES = 'variables'WEIGHTS = 'weights'WHILE_CONTEXT = 'while_context'
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