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AI Programming with Python Project

Project code for Udacity's AI Programming with Python Nanodegree program. In this project, students first develop code for an image classifier built with PyTorch, then convert it into a command line application.

ImageClassifier

Train

Train a new network on a data set with train.py

Basic usage: python train.py data_directory

Prints out training loss, validation loss, and validation accuracy as the network trains

Options:

Set directory to save checkpoints: python train.py data_dir --save_dir save_directory

Choose architecture: python train.py data_dir --arch "vgg13"

Set hyperparameters: python train.py data_dir --learning_rate 0.01 --hidden_units 512 --epochs 20

Use GPU for training: python train.py data_dir --gpu

Predict

Predict flower name from an image with predict.py along with the probability of that name. That is, you'll pass in a single image /path/to

/image and return the flower name and class probability.

Basic usage: python predict.py /path/to/image checkpoint Options:

Return top � K most likely classes: python predict.py input checkpoint --top_k 3

Use a mapping of categories to real names: python predict.py input checkpoint --category_names cat_to_name.json

Use GPU for inference: python predict.py input checkpoint --gpu

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