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Update app.py
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app.py
CHANGED
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@@ -1,44 +1,111 @@
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import json
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import spaces
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import gradio as gr
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from
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def train_callback(
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conv1_channels,
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conv2_channels,
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kernel_size,
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dropout,
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fc_dim,
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learning_rate,
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batch_size,
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epochs,
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model_tag,
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):
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try:
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int(
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float(
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int(
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model_tag,
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)
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models = list_saved_models()
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selected = model_name if model_name in models else
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return logs, history, summary, gr.update(choices=models, value=selected)
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except Exception as e:
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return
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@spaces.GPU(duration=60)
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@@ -81,75 +148,182 @@ initial_models = list_saved_models()
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with gr.Blocks(title="Classification d’images microscopiques") as demo:
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gr.Markdown("# Classification d’images microscopiques de charbons de bois")
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gr.Markdown(
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"
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"
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"sur une image importée ou sur un échantillon aléatoire."
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)
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with gr.Tabs():
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with gr.Row():
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gr.Markdown("### Paramètres d’entraînement")
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dropout = gr.Slider(
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0.0,
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fc_dim = gr.
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)
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learning_rate = gr.Number(
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value=0.
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)
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batch_size = gr.Dropdown(
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choices=[16, 32, 64
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)
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epochs = gr.Slider(
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1,
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)
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model_tag = gr.Textbox(
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label="Nom court du modèle",
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placeholder="ex.
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)
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train_btn = gr.Button("Lancer l’entraînement", variant="primary")
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with gr.Column():
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train_status = gr.Textbox(
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train_history = gr.JSON(label="Historique d’entraînement")
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train_summary = gr.JSON(label="Résumé
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with gr.Tab("Tester"):
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with gr.Row():
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model_selector = gr.Dropdown(
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choices=initial_models,
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value=initial_models[0] if initial_models else None,
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label="
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)
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refresh_btn = gr.Button("Actualiser la liste des modèles")
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load_info_btn = gr.Button("Afficher les informations du modèle")
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model_info = gr.JSON(label="Métadonnées du modèle")
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with gr.Column():
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gr.
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upload_image = gr.Image(type="pil", label="Importer une image")
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predict_btn = gr.Button("Prédire la classe", variant="primary")
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predict_text = gr.Textbox(label="Résultat de la prédiction", lines=7)
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predict_probs = gr.Label(label="Probabilités par classe")
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with gr.Row():
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random_test_btn = gr.Button("Tester un échantillon aléatoire")
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random_sample_text = gr.Textbox(label="Résultat sur l’échantillon", lines=7)
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random_sample_probs = gr.Label(label="Probabilités par classe")
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train_btn.click(
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fn=train_callback,
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inputs=[
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conv1_channels,
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conv2_channels,
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kernel_size,
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dropout,
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fc_dim,
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learning_rate,
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batch_size,
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epochs,
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model_tag,
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],
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outputs=[
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)
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refresh_btn.click(
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outputs=model_info,
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)
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predict_btn.click(
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fn=predict_uploaded_image_callback,
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inputs=[model_selector, upload_image],
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if __name__ == "__main__":
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demo.launch()
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import json
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import gradio as gr
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import spaces
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from data_utils import (
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dataset_overview,
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get_class_names,
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get_images_for_gallery,
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)
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from train_utils import (
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train_model,
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list_saved_models,
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model_meta_path,
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evaluate_saved_model,
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)
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from predict_utils import (
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predict_uploaded_image,
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test_random_sample,
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)
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def load_dataset_overview_callback():
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try:
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summary, distribution_df = dataset_overview()
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class_names = ["Toutes les classes"] + get_class_names()
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return (
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summary,
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distribution_df,
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gr.update(choices=class_names, value="Toutes les classes"),
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)
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except Exception as e:
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return (
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{"Erreur": str(e)},
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None,
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gr.update(),
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)
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def refresh_gallery_callback(split_name, class_name, max_images):
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try:
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gallery = get_images_for_gallery(
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split_name=split_name,
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class_name=class_name,
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max_images=int(max_images),
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)
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return gallery
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except Exception as e:
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return [(None, f"Erreur : {str(e)}")]
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@spaces.GPU(duration=300)
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def train_callback(
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dropout,
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fc_dim,
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learning_rate,
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weight_decay,
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batch_size,
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epochs,
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freeze_backbone,
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model_tag,
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):
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try:
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result = train_model(
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dropout=float(dropout),
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fc_dim=int(fc_dim),
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learning_rate=float(learning_rate),
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weight_decay=float(weight_decay),
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batch_size=int(batch_size),
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epochs=int(epochs),
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freeze_backbone=bool(freeze_backbone),
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model_tag=model_tag,
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)
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models = list_saved_models()
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selected = result["model_name"] if result["model_name"] in models else None
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return (
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result["logs"],
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result["history"],
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result["summary"],
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result["classification_report"],
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result["confusion_matrix"],
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result["confusion_matrix_path"],
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gr.update(choices=models, value=selected),
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)
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except Exception as e:
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return (
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f"Échec de l’entraînement :\n{str(e)}",
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None,
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None,
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None,
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None,
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None,
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gr.update(),
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)
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@spaces.GPU(duration=120)
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def evaluate_saved_model_callback(model_name):
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try:
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summary, report_df, cm_df, cm_path = evaluate_saved_model(model_name)
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return summary, report_df, cm_df, cm_path
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except Exception as e:
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return {"Erreur": str(e)}, None, None, None
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@spaces.GPU(duration=60)
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with gr.Blocks(title="Classification d’images microscopiques") as demo:
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gr.Markdown("# Classification d’images microscopiques de charbons de bois")
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gr.Markdown(
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"Application pédagogique pour explorer un jeu de données d’images microscopiques, "
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"entraîner un modèle de classification et analyser ses performances."
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)
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with gr.Tabs():
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with gr.Tab("1. Explorer le jeu de données"):
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gr.Markdown("## Comprendre le jeu de données avant l’entraînement")
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with gr.Row():
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load_dataset_btn = gr.Button("Charger les informations du dataset", variant="primary")
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with gr.Row():
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dataset_summary = gr.JSON(label="Résumé général du dataset")
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with gr.Row():
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class_distribution = gr.Dataframe(
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label="Distribution des images par split et par classe",
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interactive=False,
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)
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gr.Markdown("## Visualisation des images")
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with gr.Row():
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split_selector = gr.Dropdown(
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choices=["train", "validation", "test"],
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value="train",
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label="Split",
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)
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class_selector = gr.Dropdown(
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choices=["Toutes les classes"],
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value="Toutes les classes",
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label="Classe",
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)
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max_images = gr.Slider(
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minimum=4,
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maximum=48,
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value=24,
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step=4,
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label="Nombre d’images à afficher",
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)
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refresh_gallery_btn = gr.Button("Afficher des exemples")
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image_gallery = gr.Gallery(
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label="Exemples d’images",
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columns=4,
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height=600,
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)
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with gr.Tab("2. Entraîner un modèle"):
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gr.Markdown("## Entraînement avec ResNet18 pré-entraîné")
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gr.Markdown(
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"Le modèle utilise un backbone ResNet18 pré-entraîné sur ImageNet. "
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"Pour limiter le surapprentissage sur un petit dataset, il est recommandé de commencer "
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"avec le backbone gelé."
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)
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with gr.Row():
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with gr.Column():
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dropout = gr.Slider(
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0.0,
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0.8,
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value=0.5,
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step=0.05,
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label="Dropout",
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fc_dim = gr.Dropdown(
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choices=[64, 128, 256, 512],
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value=256,
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label="Dimension de la couche cachée",
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learning_rate = gr.Number(
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value=0.0001,
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label="Taux d’apprentissage",
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)
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weight_decay = gr.Number(
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value=0.0001,
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label="Weight decay",
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batch_size = gr.Dropdown(
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choices=[8, 16, 32, 64],
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value=16,
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label="Taille du batch",
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| 234 |
)
|
| 235 |
epochs = gr.Slider(
|
| 236 |
+
1,
|
| 237 |
+
50,
|
| 238 |
+
value=10,
|
| 239 |
+
step=1,
|
| 240 |
+
label="Nombre d’époques",
|
| 241 |
+
)
|
| 242 |
+
freeze_backbone = gr.Checkbox(
|
| 243 |
+
value=True,
|
| 244 |
+
label="Geler le backbone ResNet18",
|
| 245 |
)
|
| 246 |
model_tag = gr.Textbox(
|
| 247 |
label="Nom court du modèle",
|
| 248 |
+
placeholder="ex. charbon_resnet18_test",
|
| 249 |
)
|
| 250 |
|
| 251 |
train_btn = gr.Button("Lancer l’entraînement", variant="primary")
|
| 252 |
|
| 253 |
with gr.Column():
|
| 254 |
+
train_status = gr.Textbox(
|
| 255 |
+
label="Journal d’entraînement",
|
| 256 |
+
lines=18,
|
| 257 |
+
)
|
| 258 |
train_history = gr.JSON(label="Historique d’entraînement")
|
| 259 |
+
train_summary = gr.JSON(label="Résumé final")
|
| 260 |
+
|
| 261 |
+
gr.Markdown("## Résultats sur le test set")
|
| 262 |
|
|
|
|
| 263 |
with gr.Row():
|
| 264 |
+
train_report = gr.Dataframe(
|
| 265 |
+
label="Rapport de classification",
|
| 266 |
+
interactive=False,
|
| 267 |
+
)
|
| 268 |
+
|
| 269 |
+
with gr.Row():
|
| 270 |
+
train_confusion_matrix = gr.Dataframe(
|
| 271 |
+
label="Matrice de confusion",
|
| 272 |
+
interactive=False,
|
| 273 |
+
)
|
| 274 |
|
| 275 |
+
with gr.Row():
|
| 276 |
+
train_confusion_matrix_image = gr.Image(
|
| 277 |
+
label="Matrice de confusion - figure",
|
| 278 |
+
type="filepath",
|
| 279 |
+
)
|
| 280 |
+
|
| 281 |
+
with gr.Tab("3. Tester et analyser un modèle"):
|
| 282 |
+
gr.Markdown("## Sélectionner un modèle sauvegardé")
|
| 283 |
+
|
| 284 |
+
with gr.Row():
|
| 285 |
+
with gr.Column():
|
| 286 |
model_selector = gr.Dropdown(
|
| 287 |
choices=initial_models,
|
| 288 |
value=initial_models[0] if initial_models else None,
|
| 289 |
+
label="Modèle sauvegardé",
|
| 290 |
)
|
| 291 |
refresh_btn = gr.Button("Actualiser la liste des modèles")
|
| 292 |
load_info_btn = gr.Button("Afficher les informations du modèle")
|
| 293 |
model_info = gr.JSON(label="Métadonnées du modèle")
|
| 294 |
|
| 295 |
with gr.Column():
|
| 296 |
+
evaluate_btn = gr.Button("Évaluer le modèle sur le test set", variant="primary")
|
| 297 |
+
eval_summary = gr.JSON(label="Résumé des métriques")
|
| 298 |
+
eval_report = gr.Dataframe(
|
| 299 |
+
label="Rapport de classification",
|
| 300 |
+
interactive=False,
|
| 301 |
+
)
|
| 302 |
+
|
| 303 |
+
with gr.Row():
|
| 304 |
+
eval_confusion_matrix = gr.Dataframe(
|
| 305 |
+
label="Matrice de confusion",
|
| 306 |
+
interactive=False,
|
| 307 |
+
)
|
| 308 |
|
| 309 |
+
with gr.Row():
|
| 310 |
+
eval_confusion_matrix_image = gr.Image(
|
| 311 |
+
label="Matrice de confusion - figure",
|
| 312 |
+
type="filepath",
|
| 313 |
+
)
|
| 314 |
+
|
| 315 |
+
gr.Markdown("## Prédiction sur une image importée")
|
| 316 |
+
|
| 317 |
+
with gr.Row():
|
| 318 |
+
with gr.Column():
|
| 319 |
upload_image = gr.Image(type="pil", label="Importer une image")
|
| 320 |
predict_btn = gr.Button("Prédire la classe", variant="primary")
|
| 321 |
+
with gr.Column():
|
| 322 |
predict_text = gr.Textbox(label="Résultat de la prédiction", lines=7)
|
| 323 |
predict_probs = gr.Label(label="Probabilités par classe")
|
| 324 |
|
| 325 |
+
gr.Markdown("## Test sur un échantillon aléatoire du test set")
|
| 326 |
+
|
| 327 |
with gr.Row():
|
| 328 |
random_test_btn = gr.Button("Tester un échantillon aléatoire")
|
| 329 |
|
|
|
|
| 332 |
random_sample_text = gr.Textbox(label="Résultat sur l’échantillon", lines=7)
|
| 333 |
random_sample_probs = gr.Label(label="Probabilités par classe")
|
| 334 |
|
| 335 |
+
load_dataset_btn.click(
|
| 336 |
+
fn=load_dataset_overview_callback,
|
| 337 |
+
inputs=None,
|
| 338 |
+
outputs=[dataset_summary, class_distribution, class_selector],
|
| 339 |
+
)
|
| 340 |
+
|
| 341 |
+
refresh_gallery_btn.click(
|
| 342 |
+
fn=refresh_gallery_callback,
|
| 343 |
+
inputs=[split_selector, class_selector, max_images],
|
| 344 |
+
outputs=image_gallery,
|
| 345 |
+
)
|
| 346 |
+
|
| 347 |
train_btn.click(
|
| 348 |
fn=train_callback,
|
| 349 |
inputs=[
|
|
|
|
|
|
|
|
|
|
| 350 |
dropout,
|
| 351 |
fc_dim,
|
| 352 |
learning_rate,
|
| 353 |
+
weight_decay,
|
| 354 |
batch_size,
|
| 355 |
epochs,
|
| 356 |
+
freeze_backbone,
|
| 357 |
model_tag,
|
| 358 |
],
|
| 359 |
+
outputs=[
|
| 360 |
+
train_status,
|
| 361 |
+
train_history,
|
| 362 |
+
train_summary,
|
| 363 |
+
train_report,
|
| 364 |
+
train_confusion_matrix,
|
| 365 |
+
train_confusion_matrix_image,
|
| 366 |
+
model_selector,
|
| 367 |
+
],
|
| 368 |
)
|
| 369 |
|
| 370 |
refresh_btn.click(
|
|
|
|
| 379 |
outputs=model_info,
|
| 380 |
)
|
| 381 |
|
| 382 |
+
evaluate_btn.click(
|
| 383 |
+
fn=evaluate_saved_model_callback,
|
| 384 |
+
inputs=model_selector,
|
| 385 |
+
outputs=[
|
| 386 |
+
eval_summary,
|
| 387 |
+
eval_report,
|
| 388 |
+
eval_confusion_matrix,
|
| 389 |
+
eval_confusion_matrix_image,
|
| 390 |
+
],
|
| 391 |
+
)
|
| 392 |
+
|
| 393 |
predict_btn.click(
|
| 394 |
fn=predict_uploaded_image_callback,
|
| 395 |
inputs=[model_selector, upload_image],
|
|
|
|
| 404 |
|
| 405 |
|
| 406 |
if __name__ == "__main__":
|
| 407 |
+
demo.launch(ssr_mode=False)
|