Add RandAugment and TrivialAugment to auto_aug module #4704
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jantonguirao
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Mar 10, 2023
stiepan
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conditional execution
Signed-off-by: Kamil Tokarski <[email protected]>
Signed-off-by: Kamil Tokarski <[email protected]>
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| params[param_name] = param |
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* Add RandAugment and TrivialAugment to auto_aug module * Fix type annotations --------- Signed-off-by: Kamil Tokarski <[email protected]>
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* Add RandAugment and TrivialAugment to auto_aug module * Fix type annotations --------- Signed-off-by: Kamil Tokarski <[email protected]>
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Category:
New feature (non-breaking change which adds functionality)
Description:
Add RandAugment (https://arxiv.org/abs/1909.13719) and TrivialAugment (https://arxiv.org/abs/2103.10158).
The first selects, for each sample, uniformy at random, N operations out of the set of augmentations and applies them. Each augmentation uses magnitude (intuitevely strength) M that is fixed throught execution and common for all samples and ops. (The magnitude may still be randomly negated though, based on the augmentation specifcation).
TrivialAugment uses N=1 but the magnitudes are randomly sampled per sample (per iteration).
Additional information:
For context: augmentations used by RA, TA (and AA) are DALI-based python functions that take sample and a parameter. They are decorated with
@agumentationwhich takes care of providing the parameter based only on the magnitude_bin, i.e. an int from[0, num_magnitude_bins-1]range, so that the RA/TA/AA schemes can in abstract way control parameters of different operations.The necessary augmentations are defined here: https://github.com/NVIDIA/DALI/blob/main/dali/python/nvidia/dali/auto_aug/augmentations.py
The
trivial_augment_wideandrand_augmentrun the suites with default set of augmentations based on the papers, theapply_trivial_augmentandapply_rand_augmentaccept the custom list of augmentations to apply.Affected modules and functionalities:
Key points relevant for the review:
Tests:
Checklist
Documentation
DALI team only
Requirements
REQ IDs: N/A
JIRA TASK: DALI-3230