Incremental bin packing

  • Authors:
  • Tatiana Tambouratzis

  • Affiliations:
  • Institute of Nuclear Technology - Radiation Protection, NCSR "Demokritos" Aghia Paraskevi 153 10, Athens, Greece

  • Venue:
  • Neural, Parallel & Scientific Computations
  • Year:
  • 2001

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Abstract

An incremental approach to bin packing is proposed. A harmony theory artificial neural network is employed, whose two-layer architecture prompts the explicit encoding of the allowable placements of the objects in the bins as well the constraints arising from each placement. As a result, bin packing instances of any dimension can be solved, while the restrictions which usually apply to bin packing - and concern fixed object orientation, uniform bin capacity and the relation between bin capacity and maximum object volume - are relaxed. Furthermore, the computationally expensive task of sorting the objects in descending order is not performed. The proposed solutions suggest the exact placements of the objects in the bins. For appropriate parameter values of the harmony theory network, the smallest number of bins required for packing all the objects (i.e. an optimal solution) is consistently determined, while all optimal solutions are settled upon with asymptotically equal probability.