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Add segment apis to paddle.incubate #35759

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Merged
merged 4 commits into from
Sep 16, 2021
Merged

Add segment apis to paddle.incubate #35759

merged 4 commits into from
Sep 16, 2021

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ZHUI
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@ZHUI ZHUI commented Sep 15, 2021 •
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APIs

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Add segment apis to paddle.incubate

Segment APIs provide operations (sum, mean, max, min) on certain segment part. Following image demonstrates the process of segment mean. The segment_ids divides the data into 4 parts, and segment_mean calculates the mean of each part.

data = paddle.to_tensor([5.0,1,7,2,3,4,1,3])
segment_ids = paddle.to_tensor([0,0,0,1,2,2,3,3], dtype="int32")
paddle.incubate.segment_mean(data, segment_ids)
# [4.33333349, 2.        , 3.50000000, 2.        ]

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Thanks for your contribution!
Please wait for the result of CI firstly. See Paddle CI Manual for details.

ZHUI
ZHUI commented Sep 15, 2021
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python/paddle/incubate/tensor/math.py

This operator calculate the maximum elements of input `data` which with
the same index in `segment_ids`.
It computes a tensor such that $out_i = \\min_{j} data_{j}$
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\max

XiaoguangHu01
XiaoguangHu01 approved these changes Sep 16, 2021
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LGTM

python/paddle/incubate/tensor/math.py
# limitations under the License.

__all__ = [
'segment_sum',
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这里不用加到__all__列表，这个列表会用来统计公开API，只需要在目标位置加一次就行。

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下个PR进行修复 : #35818

@ZHUI ZHUI merged commit 4b68388 into PaddlePaddle:develop Sep 16, 2021
@ZHUI ZHUI deleted the add_segment_api branch September 17, 2021 06:17
AnnaTrainingG pushed a commit to AnnaTrainingG/Paddle that referenced this pull request Sep 29, 2021
@ZHUI @AnnaTrainingG
Add segment apis to paddle.incubate (PaddlePaddle#35759)
652d1bd
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Reviewers

@TCChenlong TCChenlong TCChenlong approved these changes

@XiaoguangHu01 XiaoguangHu01 XiaoguangHu01 approved these changes

@wawltor wawltor Awaiting requested review from wawltor

@ZeyuChen ZeyuChen Awaiting requested review from ZeyuChen

@DesmonDay DesmonDay Awaiting requested review from DesmonDay

@LemonNoel LemonNoel Awaiting requested review from LemonNoel

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3 participants
@ZHUI @TCChenlong @XiaoguangHu01