Antonella Cardillo, Maria Castaldo, Marian Alexandru Ilies, Fabio Gavinelli, Nicola Sabino
Optimization methods and algorithms class - PoliTO
A simple java CLI application that solve some given instances structured in such a way
Each instance instanceXX is defined by 3 plain text files, with the same name:
- InstanceXX.exm: defines the total number of students enrolled per exam. Format: 1 line per exam. Each line has the format
INT1 INT2
where INT1 is the exam ID and INT2 is the number of enrolled students in INT1.
- instanceXX.slo: defines the length of the examination period. Format: a single value in the format
INT
where INT is the number of available time-slots t max .
- instanceXX.stu: defines the exams in which each student is enrolled. Format: 1 line for each enrollment. Each line has the format
sINT INT2
where INT1 is the student ID and INT2 is the ID of the exam in which student INT1 is enrolled.
Each solution provided by the program is a text file named instancename_OMAXX groupYY.sol containing, for each exam, the assigned time-slot
The correct syntax for using the program is
java -jar ETPsolver_OMAAL_group24.jar [PATH FILE WITHOUT EXTENSION] -t [SECONDS]
| Exams | Students | Enrolments | Timeslots | Density | Reference | Benchmark | Gap % | |
|---|---|---|---|---|---|---|---|---|
| instance01 | 139 | 611 | 5751 | 13 | 0,14 | 157,033 | 157,317 | 0,18 |
| instance02 | 181 | 941 | 6034 | 21 | 0,29 | 34,709 | 36,577 | 5,38 |
| instance03 | 190 | 1125 | 8109 | 24 | 0,27 | 32,627 | 33,886 | 3,86 |
| instance04 | 261 | 4360 | 14901 | 23 | 0,18 | 7,717 | 8,407 | 8,94 |
| instance05 | 461 | 5349 | 25113 | 20 | 0,06 | 12,901 | 14,246 | 10,42 |
| instance06 | 622 | 21266 | 58979 | 35 | 0,13 | 3,045 | 3,747 | 23,07 |
| instance07 | 81 | 2823 | 10632 | 18 | 0,42 | 10,050 | 10,498 | 4,45 |
| % | |
|---|---|
| Best: | 0,18 |
| Avg: | 8,04 |
| Worst: | 23,07 |
See the Report file for more details about the implementation.