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fixed acidity
float64
volatile acidity
float64
citric acid
float64
residual sugar
float64
chlorides
float64
free sulfur dioxide
float64
total sulfur dioxide
float64
density
float64
pH
float64
sulphates
float64
alcohol
float64
type_red
float64
type_white
float64
quality
int64
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wine-fraud-detector (curated)

Descripción

Dataset curado para clasificación binaria de fraude en vinos a partir de propiedades fisicoquímicas. Derivado de gusdelact/wine_fraud con feature engineering aplicado: clipping IQR (factor 1.6), estandarización de variables numéricas y One-Hot encoding de la variable categórica type.

Información general

  • Autor: gusdelact
  • Fecha de creación: 2026-05-18
  • Fuente original: gusdelact/wine_fraud
  • Licencia: Apache-2.0
  • Tarea: clasificación binaria desbalanceada (Legit vs Fraud)

Composición

  • Filas crudas: 6497
  • Train (procesado, estratificado): 5197
  • Test (procesado, estratificado): 1300
  • Distribución del target original: {'Legit': 6251, 'Fraud': 246}
  • Imbalance ratio (Legit:Fraud): 25.41:1
  • Variable target: quality
  • Codificación: Legit=0, Fraud=1

Features

Columna Tipo Tratamiento
11 fisicoquímicas (acidity, sugar, pH, alcohol, …) numérica clipping IQR + StandardScaler
type categórica OneHotEncoder → type_red, type_white

Preprocesamiento aplicado

  1. Clipping IQR con factor 1.6 sobre numéricas.
  2. Sin features eliminadas por correlación (max |corr| < 0.85 entre numéricas).
  3. Split estratificado por quality con test_size=0.20, random_state=42.
  4. Imputación: mediana (numéricas), moda (categóricas).
  5. StandardScaler en numéricas, OneHotEncoder en type.

Uso previsto

Entrenamiento de modelos de clasificación binaria con desbalance fuerte. Adecuado para benchmarking de técnicas como SMOTE, class_weight='balanced', scale_pos_weight y calibración del umbral.

Limitaciones

  • Clase Fraud representa solo 3.79% de los datos. F1 puntual sobre test (~49 positivos) tiene varianza alta.
  • El "fraude" en este dataset es etiquetado en la fuente; no se documenta el criterio exacto. Cualquier despliegue real requiere validar la definición operativa con expertos.

Cómo citar

@dataset{wine_fraud_curated,
  author = {gusdelact},
  title = {wine-fraud-detector (curated)},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/gusdelact/wine-fraud-curated}
}
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