|TensorFlow 1 version||View source on GitHub|
ids in a list of embedding tensors.
tf.nn.embedding_lookup( params, ids, max_norm=None, name=None )
This function is used to perform parallel lookups on the list of
params. It is a generalization of
interpreted as a partitioning of a large embedding tensor.
params may be
PartitionedVariable as returned by using
len(params) > 1, each element
ids is partitioned between
the elements of
params according to the
In all strategies, if the id space does not evenly divide the number of
partitions, each of the first
(max_id + 1) % len(params) partitions will
be assigned one more id.
partition_strategy is always
"div" currently. This means that we
assign ids to partitions in a contiguous manner. For instance, 13 ids are
split across 5 partitions as:
[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10], [11, 12]]
The results of the lookup are concatenated into a dense
tensor. The returned tensor has shape
shape(ids) + shape(params)[1:].
A single tensor representing the complete embedding tensor, or a
list of P tensors all of same shape except for the first dimension,
representing sharded embedding tensors. Alternatively, a
||A name for the operation (optional).|