J. L. Rueda Sánchez, R. Ferri García, M. M. Rueda García

Debido a la importancia en los cuestionarios online y los big data, las muestras no probabilísticas han adquirido una gran importancia. Pero debido a su naturaleza, las estimaciones basadas en datos obtenidos a partir de estas muestras adolecen de diversos sesgos, destacando el sesgo de voluntariedad, y pueden dar lugar a estimaciones imprecisas.

En este trabajo estudiaremos nuevas técnicas de reducción de sesgos de no voluntariedad, y nos centraremos en la técnica Kernel Weighting (KW) por su innovador procedimiento y por su posible mejor rendimiento a la hora de minimizar sesgos. Mediante un estudio de simulación compararemos el comportamiento de KW con otra técnica ya ampliamente estudiada y comprobada su eficacia como es el Propensity Score Adjustment (PSA). Nuestro estudio muestra que a la hora de reducir el sesgo los estimadores KW son bastante mejores, mientras que el Error Cuadrático Medio en ambas técnicas tiene un comportamiento similar.

Keywords: Sesgos de no voluntariedad, Encuestas no probabilísticas, Kernel Weighting methods, Propensity Score Adjustment, Muestreo no probabilístico

Scheduled

Posters IV
June 10, 2022  10:10 AM
Faculty Hall


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Exploring Algorithmic Fairness on Diabetes Predicition

A. García Galindo, I. Unceta, I. Cordon

Diseños óptimos para funciones de crecimiento

M. J. Rivas Lopez, J. M. Rodriguez Diaz, I. Mariñas del Collado


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