An alternative approach for proving the NP-hardness of optimization problems

Edwin Tai Chiu Cheng; Y. Shafransky; Chi To Ng

doi:10.1016/j.ejor.2015.06.076

An alternative approach for proving the NP-hardness of optimization problems

Edwin Tai Chiu Cheng, Y. Shafransky, Chi To Ng

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

We provide a new reduction-based approach for proving the NP-hardness of optimization problems and establish that it includes the "classical" approach as a special case. We apply our alternative approach to prove the NP-hardness of a problem for which the classical approach is not applicable. Besides, we construct a special case of the problem with the property that finding an optimal element takes polynomial time despite that computing the objective function values is NP-hard.

Original language	English
Pages (from-to)	52-58
Number of pages	7
Journal	European Journal of Operational Research
Volume	248
Issue number	1
DOIs	https://doi.org/10.1016/j.ejor.2015.06.076
Publication status	Published - 1 Jan 2016

Keywords

Combinatorial optimization
Computational complexity
Scheduling

ASJC Scopus subject areas

Modelling and Simulation
Management Science and Operations Research
Information Systems and Management

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10.1016/j.ejor.2015.06.076

Cite this

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KW - Scheduling

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An alternative approach for proving the NP-hardness of optimization problems

Abstract

Keywords

ASJC Scopus subject areas

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