6 ECTS

Scheduling involves the timely allocation of tasks to scarce resources with the objective to minimize some cost function. Such problems appear in various applications, e.g., in production planning, logistics, project management, or when operating computing systems. This lecture will cover: a classification of scheduling models, complexity of scheduling problems, the design and analysis of exact and approximation algorithms, single and parallel machine models, flow shop and open shop problems. The focus lies on the design and mathematical analysis of algorithms using combinatorial techniques, dynamic programming and linear programming.

Lecturer: Assistent: |
Prof. Dr. Nicole Megow (Email) M.Sc. Franziska Eberle (Email) |
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Time & Room: |
Lecture: Mon 14-16 in room MZH 1110 (Megow) Exercise: Mon 16-18 in room MZH 1110 (Eberle) |

Begin: |
The first lecture is on Monday, October 23, 2017. The first exercise class is on Monday, October 30, 2017 and starts at 16:00 (sharp). |

Date | Topic | Material |
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23/10/2017 | Introduction, three field notation, single machine, Smith's rule | orga slides, introduction, notes by J. Winter |

30/10/2017 | Single machine: 1|(prec)|L_max (EDF), 1|prec|f_max (Lawler's algorithm) | notes by T. Hahn |

06/11/2017 | Single machine: 1||sum U_j (Moore Hodgson), parallel machines: P||sum C_j (SPT), R||sum C_j (matching), P|pmtn|C_max (McNaughton Wrap around) | notes by J. Cepok |

13/11/2017 | no lecture, no exercise | |

20/11/2017 | Q|pmtn|C_max (Horvath, Lam, Sethi 1977), short intro to linear programming | notes by M. Speer |

27/11/2017 | Complexity of scheduling problems | notes by T. Hahn |

04/12/2017 | Intro approximation algorithms, P|(prec)|C_max: list scheduling, LPT | |

11/12/2017 | Optimal poly-time alg for P2|prec,p_j=1|C_max, fast single machine relaxation for P|r_j,pmtn|sum w_jC_j | notes by T. Haslop |

18/12/2017 | P|r_j,pmtn|sum w_jC_j preemptive WSPT 2-approx, conversion technique, alpha-points | |

08/01/2018 | randomized algorithms, 1|r_j|sum w_jC_j randomized scheduling by alpha-points | [Chekuri et al.], [Skutella] |

15/01/2018 | Bin packing, PTAS for makespan minimization | notes, paper by Hochbaum, Shmoys |

22/01/2018 | FPTAS for makespan minimization, FPTAS for knapsack | notes |

29/01/2018 | LP based algorithms (P||sum w_jC_j) | notes |

- M. L. Pinedo. Scheduling: Theory, Algorithms, and Systems. Springer, 2012.
- J. Y.-T. Leung. Handbook of Scheduling: Algorithms, Models, and Performance Analysis. Chapman & Hall/CRC, 2004.
- F. Jaehn and E. Pesch: Ablaufplanung. Einführung in Scheduling. Springer, 2014.

Universität Bremen

FB3: Mathematik/Informatik

Bibliothekstr. 5.

28359 Bremen

Germany