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Browse files- README.md +80 -1
- config.json +14 -0
- model.safetensors +3 -0
- tokenizer.json +0 -0
- training_metrics.json +8 -0
README.md
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---
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-
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---
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---
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language: fr
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tags:
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- cgi
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- fiscal
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- transformer
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- from-scratch
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license: other
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---
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# CGI Transformer
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Modèle transformer entraîné from scratch sur le Code Général des Impôts (CGI) 2026 français.
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Architecture custom (RoPE, RMSNorm, SwiGLU, attention causale) — voir `config.json` pour les
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hyperparamètres et le dépôt source pour le code du modèle (`CGITransformer`).
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## Architecture
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| paramètre | valeur |
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|---|---|
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| vocab_size | 10413 |
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| d_model | 256 |
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| num_heads | 8 |
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| num_layers | 6 |
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| hidden_dim | 1024 |
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| max_seq_len | 512 |
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| dropout | 0.1 |
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## Entraînement
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| info | valeur |
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|---|---|
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| best_epoch | 14 |
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| epochs_trained | 18 |
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| learning_rate | 0.0002 |
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| batch_size | 8 |
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| weight_decay | 0.1 |
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| dropout | 0.1 |
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| label_smoothing | 0.1 |
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## Métriques (meilleur checkpoint)
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| métrique | valeur |
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|---|---|
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| val_loss | 2.7281 |
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| val_perplexity | 15.3035 |
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| val_accuracy | 0.5590 |
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| test_loss | 2.4548 |
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| test_perplexity | 11.6441 |
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| test_accuracy | 0.5934 |
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## Utilisation
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Ce modèle utilise une architecture custom, non enregistrée dans `transformers`.
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Chargement avec le code source du dépôt d'origine :
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```python
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from safetensors.torch import load_file
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from src.model import CGITransformer, CGITransformerConfig
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with open("config.json") as f:
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import json
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cfg = json.load(f)
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config = CGITransformerConfig(
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vocab_size=cfg["vocab_size"], d_model=cfg["d_model"], num_heads=cfg["num_heads"],
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num_layers=cfg["num_layers"], hidden_dim=cfg["hidden_dim"], max_seq_len=cfg["max_seq_len"],
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dropout=0.0,
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)
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model = CGITransformer(config)
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# lm_head.weight est tied avec l'embedding et n'est pas dupliqué dans le fichier safetensors
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# (déjà tied à la construction du modèle) -> strict=False pour ignorer cette clé absente
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model.load_state_dict(load_file("model.safetensors"), strict=False)
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model.eval()
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```
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Le tokenizer est un `tokenizers.Tokenizer` (fichier `tokenizer.json`) :
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```python
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from tokenizers import Tokenizer
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tokenizer = Tokenizer.from_file("tokenizer.json")
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```
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config.json
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{
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"model_type": "cgi_transformer",
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"architectures": [
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"CGITransformer"
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],
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"vocab_size": 10413,
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"d_model": 256,
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"num_heads": 8,
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"num_layers": 6,
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"hidden_dim": 1024,
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"max_seq_len": 512,
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"dropout": 0.1,
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"tie_word_embeddings": true
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}
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model.safetensors
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version https://git-lfs.github.com/spec/v1
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oid sha256:2461f8930d0d9b40e0c8fbc01edfe4f6be89e3d86cec3711f84f039e4eb7f3e2
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size 35846656
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tokenizer.json
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The diff for this file is too large to render.
See raw diff
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training_metrics.json
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{
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"val_loss": 2.728078884899948,
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"val_perplexity": 15.303459055430094,
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"val_accuracy": 0.5590273280663126,
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"test_loss": 2.45479868904326,
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"test_perplexity": 11.644089230175572,
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"test_accuracy": 0.5933611310183073
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}
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