Research on Cutting-Stock Method of Profile
نویسندگان
چکیده
منابع مشابه
Choice of Method for General One-Dimensional Cutting Stock Problem
Problems in operations research are often NP complete and optimal solution for larger problems cannot be obtained, therefore heuristic methods have to be used. The boundary between the size of the problem that can be solved optimally and those where heuristic methods should be used is not always clear. To solve this problem we propose a method based on decision trees. The method can be also use...
متن کاملCutting Stock by Iterated Matching
The combinatorial optimization problem considered in this paper is a special two dimen sional cutting stock problem arising in the wood metal and glass industry Given a demand of non oriented small rectangles and a theoretically in nite set of large stock rectangles of given lengths and widths the aim is to generate layouts with minimal waste specifying how to cut the demand out of the stock re...
متن کاملA note on the approximability of cutting stock problems
Cutting stock problems and bin packing problems are basically the same problems. They differ essentially on the variability of the input items. In the first, we have a set of items, each item with a given multiplicity; in the second, we have simply a list of items (each of which we may assume to have multiplicity 1). Many approximation algorithms have been designed for packing problems; a natur...
متن کاملOn the MAXGAP Problem for Cutting Stock Problems
The MAXGAP problem of a linear integer optimization problem P consists in determining the maximum diierence (gap) (P) between the optimal value z (E) of an instance E 2 P and the LP bound z c (E) with respect to all E 2 P. In the case of the one-dimensional cutting stock problem (1D CSP) it is known that (1D CSP) 1 + 5 132 but there is also a conjecture that (1D CSP) 2. In this paper we show th...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/1906/1/012014