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TensorBoard: TF Dev Summit Tutorial
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# Copyright 2017 Google, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
import os
import tensorflow as tf
import urllib
LOGDIR = '/tmp/mnist_tutorial/'
GIST_URL = 'https://gist.githubusercontent.com/dandelionmane/4f02ab8f1451e276fea1f165a20336f1/raw/dfb8ee95b010480d56a73f324aca480b3820c180'
### MNIST EMBEDDINGS ###
mnist = tf.contrib.learn.datasets.mnist.read_data_sets(train_dir=LOGDIR + 'data', one_hot=True)
### Get a sprite and labels file for the embedding projector ###
urllib.urlretrieve(GIST_URL + 'labels_1024.tsv', LOGDIR + 'labels_1024.tsv')
urllib.urlretrieve(GIST_URL + 'sprite_1024.png', LOGDIR + 'sprite_1024.png')
def conv_layer(input, size_in, size_out, name="conv"):
with tf.name_scope(name):
w = tf.Variable(tf.truncated_normal([5, 5, size_in, size_out], stddev=0.1), name="W")
b = tf.Variable(tf.constant(0.1, shape=[size_out]), name="B")
conv = tf.nn.conv2d(input, w, strides=[1, 1, 1, 1], padding="SAME")
act = tf.nn.relu(conv + b)
tf.summary.histogram("weights", w)
tf.summary.histogram("biases", b)
tf.summary.histogram("activations", act)
return tf.nn.max_pool(act, ksize=[1, 2, 2, 1], strides=[1, 2, 2, 1], padding="SAME")
def fc_layer(input, size_in, size_out, name="fc"):
with tf.name_scope(name):
w = tf.Variable(tf.truncated_normal([size_in, size_out], stddev=0.1), name="W")
b = tf.Variable(tf.constant(0.1, shape=[size_out]), name="B")
act = tf.nn.relu(tf.matmul(input, w) + b)
tf.summary.histogram("weights", w)
tf.summary.histogram("biases", b)
tf.summary.histogram("activations", act)
return act
def mnist_model(learning_rate, use_two_conv, use_two_fc, hparam):
tf.reset_default_graph()
sess = tf.Session()
# Setup placeholders, and reshape the data
x = tf.placeholder(tf.float32, shape=[None, 784], name="x")
x_image = tf.reshape(x, [-1, 28, 28, 1])
tf.summary.image('input', x_image, 3)
y = tf.placeholder(tf.float32, shape=[None, 10], name="labels")
if use_two_conv:
conv1 = conv_layer(x_image, 1, 32, "conv1")
conv_out = conv_layer(conv1, 32, 64, "conv2")
else:
conv1 = conv_layer(x_image, 1, 64, "conv")
conv_out = tf.nn.max_pool(conv1, ksize=[1, 2, 2, 1], strides=[1, 2, 2, 1], padding="SAME")
flattened = tf.reshape(conv_out, [-1, 7 * 7 * 64])
if use_two_fc:
fc1 = fc_layer(flattened, 7 * 7 * 64, 1024, "fc1")
embedding_input = fc1
embedding_size = 1024
logits = fc_layer(fc1, 1024, 10, "fc2")
else:
embedding_input = flattened
embedding_size = 7*7*64
logits = fc_layer(flattened, 7*7*64, 10, "fc")
with tf.name_scope("xent"):
xent = tf.reduce_mean(
tf.nn.softmax_cross_entropy_with_logits(
logits=logits, labels=y), name="xent")
tf.summary.scalar("xent", xent)
with tf.name_scope("train"):
train_step = tf.train.AdamOptimizer(learning_rate).minimize(xent)
with tf.name_scope("accuracy"):
correct_prediction = tf.equal(tf.argmax(logits, 1), tf.argmax(y, 1))
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar("accuracy", accuracy)
summ = tf.summary.merge_all()
embedding = tf.Variable(tf.zeros([1024, embedding_size]), name="test_embedding")
assignment = embedding.assign(embedding_input)
saver = tf.train.Saver()
sess.run(tf.global_variables_initializer())
writer = tf.summary.FileWriter(LOGDIR + hparam)
writer.add_graph(sess.graph)
config = tf.contrib.tensorboard.plugins.projector.ProjectorConfig()
embedding_config = config.embeddings.add()
embedding_config.tensor_name = embedding.name
embedding_config.sprite.image_path = LOGDIR + 'sprite_1024.png'
embedding_config.metadata_path = LOGDIR + 'labels_1024.tsv'
# Specify the width and height of a single thumbnail.
embedding_config.sprite.single_image_dim.extend([28, 28])
tf.contrib.tensorboard.plugins.projector.visualize_embeddings(writer, config)
for i in range(2001):
batch = mnist.train.next_batch(100)
if i % 5 == 0:
[train_accuracy, s] = sess.run([accuracy, summ], feed_dict={x: batch[0], y: batch[1]})
writer.add_summary(s, i)
if i % 500 == 0:
sess.run(assignment, feed_dict={x: mnist.test.images[:1024], y: mnist.test.labels[:1024]})
saver.save(sess, os.path.join(LOGDIR, "model.ckpt"), i)
sess.run(train_step, feed_dict={x: batch[0], y: batch[1]})
def make_hparam_string(learning_rate, use_two_fc, use_two_conv):
conv_param = "conv=2" if use_two_conv else "conv=1"
fc_param = "fc=2" if use_two_fc else "fc=1"
return "lr_%.0E,%s,%s" % (learning_rate, conv_param, fc_param)
def main():
# You can try adding some more learning rates
for learning_rate in [1E-4]:
# Include "False" as a value to try different model architectures
for use_two_fc in [True]:
for use_two_conv in [True]:
# Construct a hyperparameter string for each one (example: "lr_1E-3,fc=2,conv=2)
hparam = make_hparam_string(learning_rate, use_two_fc, use_two_conv)
print('Starting run for %s' % hparam)
# Actually run with the new settings
mnist_model(learning_rate, use_two_fc, use_two_conv, hparam)
if __name__ == '__main__':
main()
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jborlinic commented Feb 24, 2017 edited

I'd just like to say that this example has been one of the best examples/tutorials of Tensorflow I've come across in the past few months.
Thank you :)

mamcgrath commented Feb 28, 2017 edited

Thanks for tutorial, the new tools look great.

just watch your video on Youtube. Thank you for our sharing.
Best example to show the power of TensorBoard. Can wait to se TensorBoard debugging.

I found the png file is empty and pdf is broken after I cloned this to my local Git.

ubergarm commented Mar 5, 2017

The png is empty for me too, even if I download the whole shebang as a .zip.

I ported some of this visualization instrumentation code into a nice general RNN MNIST example:
https://github.com/ubergarm/TensorFlow-Examples/blob/master/examples/3_NeuralNetworks/recurrent_network.py

Great talk/video @dandelionmane

Great tutorial! Would you like to share the tools to produce metadata(TSV file, sprite image)?

At first, I'd like to thank you for nice talk.
However, the file is broken and the code occurs "socket time-out error".
Does anyone know it ?

The socket timeout error happened, since the website http://yann.lecun.com/exdb/mnist/, where the MNIST data set is taken from, was down (at least the download links were).
Try again today.

Looks like Gist messes up the binary files when code changes are made. If you are looking for a copy of the sprite png try https://github.com/mamcgrath/TensorBoard-TF-Dev-Summit-Tutorial

I have one more questions. Isn't this implementation using the RELU also in the output layer before the softmax?
I think that is screwing up the training?

Great tutorial and show! Thanks.

When running the mnist.py with python3.5 I get the failure:

File "mnist.py", line 25, in
urllib.urlretrieve(GIST_URL + 'labels_1024.tsv', LOGDIR + 'labels_1024.tsv')
AttributeError: module 'urllib' has no attribute 'urlretrieve'

Problem solved.

  1. I downloaded the code from the other source mentioned already above:
    https://github.com/mamcgrath/TensorBoard-TF-Dev-Summit-Tutorial

  2. I corrected the cuda installation as described here:
    tensorflow/tensorflow#5968

I got the nice Tensorboard graphs and scalars running:
tensorboard --logdir /tmp/mnist_tutorial

@ghost

ghost commented May 7, 2017

so nobody solve the problem the pic sprite_1024.png is broken and we can't load the data in the first step....

embeddings visualizer is not working (the rest seem to be working fine). I got the file from the other location (one location has an empty file) mentioned in the thread above (~ 32kb in size?). But Tensorboard gets stuck "Fetching sprite image.."

Actually the sprite_1024.png from the location that @rafalfirlejczyk mentioned up above works. Thanks @rafalfirlejczyk !

I can see PCA and T-SNE views of the 1024 data points / labels. It would be very convenient if the code itself just generates the tsv and png files when it is writing out the tensor variables. Perhaps it does and I am just not seeing it? (I am new to this).

Save sprite_1024.png.

import numpy as np
import scipy.misc as misc

sprite_images = mnist.test.images[:1024]

x = None
res = None
for i in range(32):
    x = None
    for j in range(32):
        img = sprite_images[i*32 + j,:].reshape((28, 28))
        x = np.concatenate((x, img), axis=1) if x is not None else img
    res = np.concatenate((res, x), axis=0) if res is  not None else  x

misc.toimage(256 - res, channel_axis=0).save('sprite_1024.png')

Last fc layer should be without tf.relu function, because later we use softmax.

Owner

dandelionmane commented Jun 11, 2017

I've moved the tutorial (and added a few fixes) to a GitHub repository:
https://github.com/dandelionmane/tf-dev-summit-tensorboard-tutorial

GoingMyWay commented Jun 30, 2017 edited

Great job, after learning how to use tensorboard, I can easily to know the performance of the algorithm via web browser.

The slides file are broken for me too

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