title: SparseTensor equivalent of tf.tile?
body: <p>There's a <a href="https://www.tensorflow.org/versions/r0.10/api_docs/python/array_ops.html#tile" rel="nofollow">tf.tile</a> function, which takes a tensor and copies it a given number of times.</p>
  
  <pre><code>f = tf.tile([5], [3])
  f.eval() == array([3, 3, 3], dtype=int32)
  </code></pre>
  
  <p>How to achieve something similar with <code>SparseTensor</code>s:</p>
  
  <pre><code>g = tf.SparseTensorValue([[0, 0]], values=[5], shape=[1, 1])
  tiled = tf.tile(g, [10, 1]) &lt;- gives ValueError: Argument must be a dense tensor
  </code></pre>
  
  <p>?</p>