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LodExtend Operator #5000

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Superjomn opened this issue Oct 22, 2017 · 0 comments · Fixed by #4740

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Superjomn commented Oct 22, 2017 •

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According to the design of sequence decoder,
a LodExtend Operator is needed to link the previous state to the current state of RNN/sequence decoder.

It functions like

inputs
- source : LoDTensor
- target, the lod to fit, LoDTensor
outputs
- the expanded source that has the same LoD with target

Some real examples:

source: a 1-level LoDTensor with 2 sequences
- LoD: [0, 3, 5]
- data: [0, 1, 2, 3, 4, 5]
target: a 1-level LoDTensor with 5 sequences
- LoD: [0, 2, 3, 5, 6, 6, 8]
output:
- LoD same with target
- data: [0, 0, 1, 2, 2, 3, 5, 5]

The function LodExpand in another PR can be used.

The text was updated successfully, but these errors were encountered:

Superjomn assigned qingqing01

qingqing01 assigned wanghaoshuang

wanghaoshuang mentioned this issue

Seq expand op #4740

Merged

wanghaoshuang closed this as completed in #4740

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