Error in ... notebooks/2_BasicModels/kmeans.ipynb

[Scoodood]

This line gives

# Build KMeans graph
(all_scores, cluster_idx, scores, cluster_centers_initialized, init_op, train_op) = kmeans.training_graph()
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-9-8f6c815e4bb3> in <module>()
      1 # Build KMeans graph
      2 (all_scores, cluster_idx, scores, cluster_centers_initialized, init_op,
----> 3 train_op) = kmeans.training_graph()
      4 cluster_idx = cluster_idx[0] # fix for cluster_idx being a tuple
      5 avg_distance = tf.reduce_mean(scores)

ValueError: not enough values to unpack (expected 6, got 4)

The rest of the cells gives errors as well...

[ai4pharma]

It works for me after following modification. It's based on https://www.tensorflow.org/api_docs/python/tf/contrib/factorization/KMeans. It seems Tensorflow 1.4.1 returns a tuple with 7 elements.

(all_scores, cluster_idx, scores, cluster_centers_initialized, cluster_centers_var, init_op,
train_op) = kmeans.training_graph()

[filipre]

for me training_graph() returns 6 elements:

(all_scores, cluster_idx, scores, cluster_centers_initialized, init_op, train_op) = kmeans.training_graph()

It is fixed in the python files, but not the notebooks: https://github.com/aymericdamien/TensorFlow-Examples/blob/master/examples/2_BasicModels/kmeans.py

It sounds like a good time to introduce an environment.yml file to prevent issues like these.

[Moulick]

@filipre which Tensorflow version do you have ?

[pleabargain]

submitted fix here
#236