Delta optimizes continuing-qualification-training schedules for pilots
Interfaces - Wagner prize papers
Operational airline reserve crew planning
Journal of Scheduling
Improving the scalability of EA techniques: a case study in clustering
EA'09 Proceedings of the 9th international conference on Artificial evolution
Integrated Airline Crew Pairing and Crew Assignment by Dynamic Constraint Aggregation
Transportation Science
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We developed a two-phase algorithm for solving Delta Air Lines' bidline-generation problem: assigning trips (tasks) to monthly schedules for crew members (called bidlines.) The system must produce bidlines that conform to all rules, and it should maximize average total value and the quality of the bidlines as measured by their purity. The first phase of the algorithm (the purity phase) constructs as many high-quality lines as possible, and the second (the GA phase) completes the assignments by constructing high-total-value valid lines from the remaining open trips. Delta obtains significant savings in staffing by using this algorithm. The bidlines produced are of comparable quality to those built with the semiautomatic process that Delta Air Lines used before.