tf.math.top_k

TensorFlow 1 version View source on GitHub

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

Used in the notebooks

Used in the tutorials

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.

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.

values The k largest elements along each last dimensional slice.
indices The indices of values within the last dimension of input.