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RuntimeError: 1D target tensor expected, multi-target not supported site:stackoverflow.com

Panicky Porcupine answered on December 19, 2020 Popularity 9/10 Helpfulness 3/10

answer RuntimeError: 1D target tensor expected, multi-target not supported site:stackoverflow.com

RuntimeError: 1D target tensor expected, multi-target not supported site:stackoverflow.com

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For nn.CrossEntropyLoss the target has to be a single number
from the interval [0, #classes] instead of a one-hot encoded target vector.
Your target is [1, 0], thus PyTorch thinks 
you want to have multiple labels per input which is not supported.

Replace your one-hot-encoded targets:

[1, 0] --> 0

[0, 1] --> 1

Popularity 9/10 Helpfulness 3/10 Language python

Source: Grepper

Tags: python target tensor

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Contributed on Dec 19 2020

Panicky Porcupine

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RuntimeError: 1D target tensor expected, multi-target not supported site:stackoverflow.com

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