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mindspore/example/lenet_mnist
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README.md

LeNet Example

Description

Training LeNet with MNIST dataset in MindSpore.

This is the simple and basic tutorial for constructing a network in MindSpore.

Requirements

  • Install MindSpore.

  • Download the MNIST dataset, the directory structure is as follows:

└─MNIST_Data
    ├─test
    │      t10k-images.idx3-ubyte
    │      t10k-labels.idx1-ubyte
    │
    └─train
           train-images.idx3-ubyte
           train-labels.idx1-ubyte

Running the example

# train LeNet, hyperparameter setting in config.py
python train.py --data_path MNIST_Data

You will get the loss value of each step as following:

epoch: 1 step: 1, loss is 2.3040335
...
epoch: 1 step: 1739, loss is 0.06952668
epoch: 1 step: 1740, loss is 0.05038793
epoch: 1 step: 1741, loss is 0.05018193
...

Then, evaluate LeNet according to network model

# evaluate LeNet, after 1 epoch training, the accuracy is up to 96.5%
python eval.py --data_path MNIST_Data --mode test --ckpt_path checkpoint_lenet-1_1875.ckpt

Note

Here are some optional parameters:

--device_target {Ascend,GPU,CPU}
                     device where the code will be implemented (default: Ascend)
--data_path DATA_PATH
                     path where the dataset is saved
--dataset_sink_mode DATASET_SINK_MODE
                     dataset_sink_mode is False or True

You can run python train.py -h or python eval.py -h to get more information.

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MindSpore is a new open source deep learning training/inference framework that could be used for mobile, edge and cloud scenarios.

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