{"cells":[{"metadata":{"_uuid":"8f2839f25d086af736a60e9eeb907d3b93b6e0e5","_cell_guid":"b1076dfc-b9ad-4769-8c92-a6c4dae69d19","trusted":true},"cell_type":"code","source":"import numpy as np \nimport pandas as pd\n\nfrom fastai.vision.all import *","execution_count":null,"outputs":[]},{"metadata":{"trusted":true},"cell_type":"code","source":"df_train = pd.read_csv(\"../input/cassava-leaf-disease-classification/train.csv\")\ndls = ImageDataLoaders.from_df(df_train, path=\"../input/cassava-leaf-disease-classification/train_images\", item_tfms=Resize(224))","execution_count":null,"outputs":[]},{"metadata":{"trusted":true},"cell_type":"code","source":"# Antes de rodar esta linha, é necessário fazer o upload do modelo treinado como se fosse um dataset\n# Clicar em \"+ Add data\" nas opções da esquerda e fazer o upload do modelo previamente gravado (aqui chamado meuModelo.pth)\n\n!cp ../input/modelo-teste/meuModelo.pth /tmp","execution_count":null,"outputs":[]},{"metadata":{"trusted":true},"cell_type":"code","source":"# Prepara o modelo e carregar\n\nlearn = cnn_learner(dls, alexnet, metrics=[error_rate,accuracy], pretrained=False, model_dir=\"/tmp/\")\nlearn = learn.load(\"/tmp/meuModelo\")","execution_count":null,"outputs":[]},{"metadata":{"trusted":true},"cell_type":"code","source":"# Aplicar o modelo no conjunto de teste\n\ntest_files = get_image_files('../input/cassava-leaf-disease-classification/test_images')\ntest_dl = learn.dls.test_dl(test_files, with_label=True)\npred_probas, x, pred_classes = learn.get_preds(dl=test_dl, with_decoded=True) ","execution_count":null,"outputs":[]},{"metadata":{"trusted":true},"cell_type":"code","source":"# Gravar os resultados (deve ter uma maneira mais eficiente...)\n\nimport os\n\nrows = []\nfor file, label in zip(test_files, pred_classes):\n    row = {'image_id': os.path.basename(file), 'label': int(label)}\n    rows.append(row)\ndf = pd.DataFrame(rows)\ndf.to_csv('./submission.csv', index=False)\n    ","execution_count":null,"outputs":[]}],"metadata":{"kernelspec":{"language":"python","display_name":"Python 3","name":"python3"},"language_info":{"pygments_lexer":"ipython3","nbconvert_exporter":"python","version":"3.6.4","file_extension":".py","codemirror_mode":{"name":"ipython","version":3},"name":"python","mimetype":"text/x-python"}},"nbformat":4,"nbformat_minor":4}