Tensorflow Basics

• based on https://www.tensorflow.org/programmers_guide/graphs

Graph

• TensorFlow graph is a dataflow graph
• TensorFlow set up a graph and runs it through session
• nodes: units of computation ex) variable, operation..

• edges: data consumed or produced

• cf) tf.estimator.Estimator : high-level API. kind of ready-made graph

tf.Graph

• Graph structure
• Graph collections: tf.add_to_collection makes a list of objects with a key(defined in tf.GraphKeys) and using tf.get_collection , you can look up all objects associated with the key.