BiaPyX/BiaPy

Unstable training for lucchi and lucchi_pp datasets

Closed this issue · 4 comments

Dear authors, thank you very much for your excellent paper and the efforts to make the code available. I am trying to reproduce your result on the lucchi and lucchi_pp datasets, finding that jaccard_index is not improving during training (i.e. it reduced quickly to 0.0000e+00 at epoch 0 and stayed unchanged). However, the training process is fine for the kasthuri_pp dataset. And I have tried both SGD and ADAM optimizers, but the problem persisted. The model architecture is the Attention U-net. What could be the problem with this scenario?

The training log is attached as follows:

#####################

TRAIN THE MODEL

#####################

build callbacks done
Epoch 1/360

1/297 [..............................] - ETA: 24:24 - loss: 0.7848 - jaccard_index: 0.1074
2/297 [..............................] - ETA: 26s - loss: 0.6453 - jaccard_index: 0.0728
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297/297 [==============================] - ETA: 0s - loss: 0.2547 - jaccard_index: 7.0270e-04

Epoch 00001: val_loss improved from inf to 0.25942, saving model to content\output\reproduce_lucchi_pp_10\checkpoints\model_weights_reproduce_lucchi_pp_10_10.h5

297/297 [==============================] - 34s 98ms/step - loss: 0.2547 - jaccard_index: 7.0270e-04 - val_loss: 0.2594 - val_jaccard_index: 0.0000e+00
Epoch 2/360

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297/297 [==============================] - ETA: 0s - loss: 0.2399 - jaccard_index: 0.0000e+00

Epoch 00002: val_loss improved from 0.25942 to 0.25855, saving model to content\output\reproduce_lucchi_pp_10\checkpoints\model_weights_reproduce_lucchi_pp_10_10.h5

297/297 [==============================] - 29s 96ms/step - loss: 0.2399 - jaccard_index: 0.0000e+00 - val_loss: 0.2585 - val_jaccard_index: 0.0000e+00

Hello,

How many epochs did you run? Can you attach here the YAML config file used and the commit you are using? As we are under continuous development of BiaPy.

Thanks,

Dani

Thanks for your response Dani, the jaccard_index starts to grow after training about 150 epochs. Here are the metrics at the end of epoch 420: loss: 0.0824 - jaccard_index: 0.5985 - val_loss: 0.1672 - val_jaccard_index: 0.4564.

Below is the YAML file. Regards

AUGMENTOR:
ENABLE: true
HFLIP: true
RANDOM_ROT: true
SHUFFLE_TRAIN_DATA_EACH_EPOCH: true
SHUFFLE_VAL_DATA_EACH_EPOCH: true
VFLIP: true
DATA:
CHECK_GENERATORS: false
PATCH_SIZE: (256, 256, 1)
TEST:
IN_MEMORY: true
LOAD_GT: true
MASK_PATH: content\data\lucchi_pp\test\y
PADDING: (32, 32)
PATH: content\data\lucchi_pp\test\x
TRAIN:
IN_MEMORY: true
MASK_PATH: content\data\lucchi_pp\train\y
PATH: content\data\lucchi_pp\train\x
VAL:
FROM_TRAIN: true
SPLIT_TRAIN: 0.1
MODEL:
ARCHITECTURE: attention_unet
DROPOUT_VALUES:

  • 0.1
  • 0.1
  • 0.2
  • 0.2
  • 0.3
    FEATURE_MAPS:
  • 16
  • 32
  • 64
  • 128
  • 256
    LOAD_CHECKPOINT: false
    PROBLEM:
    NDIM: 2D
    TYPE: SEMANTIC_SEG
    SYSTEM:
    NUM_CPUS: 1
    TEST:
    ANALIZE_2D_IMGS_AS_3D_STACK: true
    AUGMENTATION: true
    ENABLE: true
    POST_PROCESSING:
    YZ_FILTERING: true
    STATS:
    FULL_IMG: true
    MERGE_PATCHES: true
    PER_PATCH: true
    TRAIN:
    BATCH_SIZE: 6
    ENABLE: true
    EPOCHS: 420
    LR: 0.002
    OPTIMIZER: SGD
    PATIENCE: 200

Hello,

We need to check each workflow's notebook but I have just run the 2D Semantic Segmentation one with its default options, i.e. with Attention U-Net, and it's learning smoothly from the first epochs. Will update a minor things of the notebook but you can use this one in the meanwhile:

https://drive.google.com/file/d/1elOzvPxTFBDg-iEiCISvRyquqbaISxus/view?usp=sharing

Thank you for sharing the notebook, Dani! I think it is my data preprocessing issue, the notebook works fine with the Lucchi dataset but not the Lucchi++ dataset. Regards