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README.md
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---
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---
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# 🛡️ IDS con Redes Neuronales — NSL-KDD
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**Proyecto Final | Materia: Redes Neuronales | Estudiante: César Núñez**
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Sistema de Detección de Intrusos (IDS) que clasifica tráfico de red usando dos modelos:
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- **MLP Base**: Clasificación binaria (Normal vs Ataque).
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- **Transfer Learning**: Clasificación multiclase en 5 categorías (Normal / DoS / Probe / R2L / U2R).
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---
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## 📁 Estructura del proyecto
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```
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proyecto_ids/
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│
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├── app/
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│ └── main.py # API REST con FastAPI
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│
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├── notebooks/
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│ └── entrenamiento.ipynb # Pipeline completo: EDA → preprocesamiento → modelos → métricas
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│
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├── models/ # Artefactos generados por el notebook (NO subir a Git)
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│ ├── modelo_base.keras
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│ ├── modelo_transfer.keras
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│ ├── scaler.joblib
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│ └── encoders.joblib
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│
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├── data/ # Dataset NSL-KDD (NO subir a Git)
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│ ├── train.csv
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│ └── test.csv
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│
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├── gradio_app.py # Interfaz visual Gradio
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├── Dockerfile # Imagen del servicio API
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├── Dockerfile.gradio # Imagen del servicio Gradio
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├── docker-compose.yml # Orquestación de ambos servicios
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├── requirements.txt # Dependencias API
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├── requirements.gradio.txt # Dependencias Gradio
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└── .gitignore
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```
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---
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## 🚀 Cómo ejecutar
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### ✅ Opción 1 — Docker Compose (recomendado)
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```bash
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# 1. Asegurarse de tener la carpeta models/ con los artefactos del notebook
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# 2. Construir y levantar ambos servicios
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docker compose up --build
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# La API estará disponible en: http://localhost:8000
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# La interfaz Gradio estará en: http://localhost:7860
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# La documentación Swagger en: http://localhost:8000/docs
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```
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### ⚙️ Opción 2 — Ejecución manual (desarrollo)
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```bash
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# Crear y activar entorno virtual
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python -m venv venv
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source venv/bin/activate # Linux/Mac
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venv\Scripts\activate # Windows
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# Instalar dependencias
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pip install -r requirements.txt
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pip install gradio requests
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# Terminal 1: levantar la API
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uvicorn app.main:app --reload --port 8000
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# Terminal 2: levantar la interfaz
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python gradio_app.py
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```
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### 📓 Opción 3 — Solo el notebook
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```bash
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pip install -r requirements.txt jupyter
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jupyter notebook notebooks/entrenamiento.ipynb
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# Ejecutar todas las celdas en orden (Kernel → Restart & Run All)
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```
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---
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## 📡 Endpoints de la API
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| Método | Endpoint | Descripción |
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|--------|-----------------------|------------------------------------------|
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| GET | `/` | Bienvenida y health check básico |
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| GET | `/health` | Verifica que los modelos estén cargados |
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| POST | `/predict/binary` | Normal vs Ataque (MLP Base) |
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| POST | `/predict/multiclass` | 5 categorías (Transfer Learning) |
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| GET | `/docs` | Documentación interactiva Swagger UI |
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### Ejemplo de uso con `curl`
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```bash
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curl -X POST http://localhost:8000/predict/binary \
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-H "Content-Type: application/json" \
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-d '{"features": [0,2,30,10,491,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,2,2,0,0,0,0,1,0,0,150,25,0.17,0.03,0.17,0,0.01,0.06,0,0]}'
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```
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### Respuesta esperada
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```json
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{
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"prediction": "Tráfico Normal ✅",
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"probability": 0.0312,
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"confidence": "96.9%",
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"mode": "binary",
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"status": "success"
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}
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```
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---
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## 🔧 Obtener el dataset NSL-KDD
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```bash
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# Descargar desde la fuente oficial
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wget https://www.unb.ca/cic/datasets/nsl.html
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# O usar la versión de Kaggle: search "NSL-KDD dataset"
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# Colocar los archivos en:
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mkdir -p data/
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# data/train.csv → KDDTrain+.txt (renombrar y mover)
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# data/test.csv → KDDTest+.txt (renombrar y mover)
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```
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---
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## 📊 Dataset — NSL-KDD
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| Característica | Valor |
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|---------------------|------------------------------|
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| Registros Train | ~125,973 |
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| Registros Test | ~22,544 |
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| Variables (features)| 41 |
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| Clases binarias | Normal / Ataque |
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| Clases multiclase | Normal, DoS, Probe, R2L, U2R |
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| Año de referencia | 1999 (benchmark académico) |
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---
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## ⚙️ Stack tecnológico
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| Componente | Tecnología |
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|-----------------|-----------------------------|
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| Modelos | TensorFlow / Keras |
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| Preprocesamiento| Scikit-learn |
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| API REST | FastAPI + Uvicorn |
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| Interfaz visual | Gradio |
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| Contenerización | Docker + Docker Compose |
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| Control versiones| Git + GitHub |
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---
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## .gitignore recomendado
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```gitignore
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# Modelos entrenados (archivos pesados)
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models/*.keras
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models/*.joblib
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models/*.h5
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models/*.png
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# Dataset
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data/
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# Entorno virtual
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venv/
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__pycache__/
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*.pyc
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.ipynb_checkpoints/
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# Variables de entorno
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.env
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```
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---
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*César Núñez — Proyecto Final, Materia: Redes Neuronales*
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