1. Seeing "Histogram", all values are set to zero. 2. Go to source code and fix the initial value of W, b. 3. Rerun the code and check the histogram.

1. tf.summary.scalar 2. tf.summary.image 3. tf.summary.histogram

1. Node Name 2. Name Scope 3. Clean graph!

1. Failed in training 2. See the graph, but way too complicated..

1. Simple network for MNIST dataset training 2. Define layers (conv_layer, fc_layer) 3. Create a network 4. Adam Optimizer, Accuracy 5. Initialize variables 6. training and evaluate accuracy

1. Setup placeholders, and reshape the data2. Activate TensorBoard (writer) 3. (Open terminal: Alt + F12) $ tensorboard --logdir graphs (or, --logdir==graphs, --logdir=="graphs", --logdir=="C:\~\graphs")4. (Open Chrome) http://localhost:6006