Complexity results on a paint shop problem
Complexity results on a paint shop problem
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DOI:
10.1016/s0166-218x(03)00442-6
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发表时间:
2004-02-15
影响因子:
1.1
通讯作者:
Oertel, P
中科院分区:
文献类型:
--
作者:
Epping, T;Hochstättler, W;Oertel, P
Motivated by an application in the automobile industry, we present results and conjectures on a new combinatorial problem: Given a word w and restricted reservoirs of colored letters, synthesize w with a minimal number of color changes. We present a dynamic program that solves this problem and runs in polynomial time if we bound both, the number of different letters and colors. Otherwise, the problem is shown to be NP-complete. Additionally, we focus on upper bounds on the minimal number of color changes, simultaneously giving results for special instances, and posing open questions. (C) 2003 Elsevier B.V. All rights reserved.