tf.contrib.seq2seq.Helper

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Interface for implementing sampling in seq2seq decoders.

Helper instances are used by BasicDecoder.

batch_size Batch size of tensor returned by sample.

Returns a scalar int32 tensor.

sample_ids_dtype DType of tensor returned by sample.

Returns a DType.

sample_ids_shape Shape of tensor returned by sample, excluding the batch dimension.

Returns a TensorShape.

Methods

initialize

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@abc.abstractmethod
initialize(
    name=None
)

Returns (initial_finished, initial_inputs).

next_inputs

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@abc.abstractmethod
next_inputs(
    time, outputs, state, sample_ids, name=None
)

Returns (finished, next_inputs, next_state).

sample

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@abc.abstractmethod
sample(
    time, outputs, state, name=None
)

Returns sample_ids.