Multi-objective learning of white box models with low quality data

  • Authors:

  • José R. Villar;Alba Berzosa;Enrique de la Cal;Javier Sedano;Marco García-Tamargo

  • Affiliations:

  • University of Oviedo, Campus de Viesques s/n 33204 Gijón, Spain;Instituto Tecnológico de Castilla y León (ITCL), Polígono Industrial Villalonquéjar. c/López Bravo, 70. 09001. Burgos, Spain;University of Oviedo, Campus de Viesques s/n 33204 Gijón, Spain;Instituto Tecnológico de Castilla y León (ITCL), Polígono Industrial Villalonquéjar. c/López Bravo, 70. 09001. Burgos, Spain;University of Oviedo, Campus de Viesques s/n 33204 Gijón, Spain

  • Venue:
  • Neurocomputing
  • Year:
  • 2012

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Abstract

Improving energy efficiency in buildings represents one of the main challenges faced by engineers. In fields like lighting control systems, the effect of low quality sensors compromises the control strategy and the emergence of new technologies also degrades the data quality introducing linguistic values. This research analyzes the aforementioned problem and shows that, in the field of lighting control systems, the uncertainty in the measurements gathered from sensors should be considered in the design of control loops. To cope with this kind of problems Hybrid Intelligent methods will be used. Moreover, a method for learning equation-based white box models with this low quality data is proposed. The equation-based models include a representation of the uncertainty inherited in the data. Two different evolutive algorithms are use for learning the models: the well-known NSGA-II genetic algorithm and a multi-objective simulated annealing algorithm hybridized with genetic operators. The performance of both algorithms is found valid to evolve this learning process. This novel approach is evaluated with synthetic problems.