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tf.math.top_k

Finds values and indices of the k largest entries for the last dimension.

If the input is a vector (rank=1), finds the k largest entries in the vector and outputs their values and indices as vectors. Thus values[j] is the j-th largest entry in input, and its index is indices[j].

For matrices (resp. higher rank input), computes the top k entries in each row (resp. vector along the last dimension). Thus,

values.shape = indices.shape = input.shape[:-1] + [k]

If two elements are equal, the lower-index element appears first.

Args
input 1-D or higher Tensor with last dimension at least k.
k 0-D int32 Tensor. Number of top elements to look for along the last dimension (along each row for matrices).
sorted If true the resulting k elements will be sorted by the values in descending order.
name Optional name for the operation.
Returns
values The k largest elements along each last dimensional slice.
indices The indices of values within the last dimension of input.

© 2020 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/math/top_k