A note on the complexity of family sched
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T. C. Edwin Cheng; Zhaohui Liu; Yakov M. Shafransky
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Article
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2001
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Springer US
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English
โ 65 KB
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The single-machine family scheduling problem of minimizing the number of late jobs has been known to be NP-hard, but whether it is NP-hard in the strong sense is cited as an open problem in several reviews. In this note, we prove that this problem is strongly NP-hard even if all set-up times and pro