We are delighted to announce the talk given by Kangbok Lee (POSTECH,
Korea).
The title is "Scheduling Heuristics for Steelmaking Continuous Casting
Processes".
The seminar will take place on Zoom on Wednesday, February 16 at 14:00 UTC.
Join Zoom Meeting
https://cesnet.zoom.us/j/91094063787?pwd=d01UbWRPOHJQUy93dnBhWU5QclRLQT09
Meeting ID: 910 9406 3787
Passcode: 284143
You can follow the seminar online or offline on our Youtube channel as well:
https://www.youtube.com/channel/UCUoCNnaAfw5NAntItILFn4A
The abstract follows.
Steelmaking-Continuous Casting (SCC) is a bottleneck in the steel
production process and its scheduling has become more challenging over
time. In this paper, we provide an extensive literature review that
highlights challenges in the SCC scheduling and compares existing
solution methods. From the literature review, we collect the essential
features of an SCC process, such as unrelated parallel machine
environments, stage skipping, and maximum waiting time limits in between
successive stages. We consider an SCC scheduling problem with as
objective the minimisation of the weighted sum of cast break penalties,
total waiting time, total earliness, and total tardiness. We formulate
the problem as a mixed-integer linear programming model and develop an
iterated greedy matheuristic that solves its subproblems to find a
near-optimal solution. Through numerical experiments, we show that our
algorithm outperforms two types of genetic algorithms when applied to
test instances.
The next talk in our series will be given by:
John W. Fowler (Arizona State Univ.) | March 2 | Scheduling Problems in
Semiconductor Wafer Fabrication Facilities: Part 1
For more details, please visit https://schedulingseminar.com/
With kind regards
Zdenek, Mike and Guohua
--
Zdenek Hanzalek
Industrial Informatics Department,
Czech Institute of Informatics, Robotics and Cybernetics,
Czech Technical University in Prague,
Jugoslavskych partyzanu 1580/3, 160 00 Prague 6, Czech Republic
https://rtime.ciirc.cvut.cz/~hanzalek/
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