Dear scheduling researcher,
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/