Hybrid self-adaptive learning based particle swarm optimization and support vector regression model for grade estimation

  • Authors:
  • Xiao-Li Li;Li-Hong Li;Bao-Lin Zhang;Qian-Jin Guo

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Neurocomputing
  • Year:
  • 2013

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Abstract

Ore grade estimation is one of the key stages and the most complicated aspects in mining. Its complexity originates from scientific uncertainty. In this paper, a novel hybrid SLPSO-SVR model that hybridized the self-adaptive learning based particle swarm optimization (SLPSO) and support vector regression (SVR) is proposed for ore grade estimation. This hybrid SLPSO-SVR model searches for SVR's optimal parameters using self-adaptive learning based particle swarm optimization algorithms, and then adopts the optimal parameters to construct the SVR models. The SVR uses the 'Max-Margin' idea to search for an optimum hyperplane, and adopts the @e-insensitive loss function for minimizing the training error between the training data and identified function. The hybrid SLPSO-SVR grade estimation method has been tested on a number of real ore deposits. The result shows that method has advantages of rapid training, generality and accuracy grade estimation approach. It can provide with a very fast and robust alternative to the existing time-consuming methodologies for ore grade estimation.