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- W2949672270 abstract "We study the fundamental problem of scheduling bidirectional traffic along a path composed of multiple segments. The main feature of the problem is that jobs traveling in the same direction can be scheduled in quick succession on a segment, while jobs in opposing directions cannot cross a segment at the same time. We show that this tradeoff makes the problem significantly harder than the related flow shop problem, by proving that it is NP-hard even for identical jobs. We complement this result with a PTAS for a single segment and non-identical jobs. If we allow some pairs of jobs traveling in different directions to cross a segment concurrently, the problem becomes APX-hard even on a single segment and with identical jobs. We give polynomial algorithms for the setting with restricted compatibilities between jobs on a single and any constant number of segments, respectively." @default.
- W2949672270 created "2019-06-27" @default.
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- W2949672270 date "2015-04-27" @default.
- W2949672270 modified "2023-10-01" @default.
- W2949672270 title "Scheduling Bidirectional Traffic on a Path" @default.
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