Bin packing and related problems: General arc-flow formulation with graph compression

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Filipe Brandão (Author) Other; João Pedro Pedroso (Author) FCUP

Journal

Title: Computers and Operations Research

Vol. 69

Pages: 56-67

ISSN: 0305-0548

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 74 Citations

Scopus - 89 Citations

Other information

Authenticus ID: P-00G-6C4

DOI: 10.1016/j.cor.2015.11.009

Abstract (EN): We present an exact method, based on an arc-flow formulation with side constraints, for solving bin packing and cutting stock problems-including multi-constraint variants-by simply representing all the patterns in a very compact graph. Our method includes a graph compression algorithm that usually reduces the size of the underlying graph substantially without weakening the model. Our formulation is equivalent to Gilmore and Gomory's, thus providing a very strong linear relaxation. However, instead of using column-generation in an iterative process, the method constructs a graph, where paths from the source to the target node represent every valid packing pattern. The same method, without any problem-specific parameterization, was used to solve a large variety of instances from several different cutting and packing problems. In this paper, we deal with vector packing, bin packing, cutting stock, cardinality constrained bin packing, cutting stock with cutting knife limitation, bin packing with conflicts, and other problems. We report computational results obtained with many benchmark test datasets, some of them showing a large advantage of this formulation with respect to the traditional ones.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12