Examples with Exam org.cpsolver.exam.model.Exam used on opensource projects

Example 56 with Exam

use of org.cpsolver.exam.model.Exam in project cpsolver by UniTime.

the class InstructorDirectConflicts method getValue.

@Override
public double getValue(Assignment<Exam, ExamPlacement> assignment, Collection<Exam> variables) {
    int ret = 0;
    ExamModel m = (ExamModel) getModel();
    for (ExamPeriod p : m.getPeriods()) {
        Map<ExamInstructor, Set<Exam>> instructors = m.getInstructorsOfPeriod(assignment, p);
        for (Set<Exam> exams : instructors.values()) {
            int nrExams = exams.size();
            if (nrExams > 1)
                ret += nrExams - 1;
        }
    }
    if (m.isCheckForPeriodOverlaps()) {
        for (ExamPeriod p : m.getPeriods()) {
            for (ExamPeriod q : m.getPeriods()) {
                if (p.getIndex() < q.getIndex() && p.hasIntersection(q)) {
                    Map<ExamInstructor, Set<Exam>> s1 = m.getInstructorsOfPeriod(assignment, p);
                    Map<ExamInstructor, Set<Exam>> s2 = m.getInstructorsOfPeriod(assignment, q);
                    for (Map.Entry<ExamInstructor, Set<Exam>> e : s1.entrySet()) {
                        ExamInstructor s = e.getKey();
                        if (!e.getValue().isEmpty()) {
                            Set<Exam> x = s2.get(s);
                            if (x != null && x.isEmpty()) {
                                x1: for (Exam x1 : e.getValue()) {
                                    for (Exam x2 : x) {
                                        if (p.hasIntersection(x1, x2, q)) {
                                            ret += 1;
                                            break x1;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return ret;
}

Example 57 with Exam

use of org.cpsolver.exam.model.Exam in project cpsolver by UniTime.

the class PeriodPenalty method getBounds.

@Override
public double[] getBounds(Assignment<Exam, ExamPlacement> assignment, Collection<Exam> variables) {
    double[] bounds = new double[] { 0.0, 0.0 };
    for (Exam exam : variables) {
        if (!exam.getPeriodPlacements().isEmpty()) {
            int minPenalty = Integer.MAX_VALUE, maxPenalty = Integer.MIN_VALUE;
            for (ExamPeriodPlacement periodPlacement : exam.getPeriodPlacements()) {
                if (iSoftPeriods != null && (periodPlacement.getExamPenalty() == iSoftPeriods || periodPlacement.getPeriod().getPenalty() == iSoftPeriods))
                    continue;
                minPenalty = Math.min(minPenalty, periodPlacement.getPenalty());
                maxPenalty = Math.max(maxPenalty, periodPlacement.getPenalty());
            }
            bounds[0] += minPenalty;
            bounds[1] += maxPenalty;
        }
    }
    return bounds;
}

Example 58 with Exam

use of org.cpsolver.exam.model.Exam in project cpsolver by UniTime.

the class RoomPerturbationPenalty method getValue.

@Override
public double getValue(Assignment<Exam, ExamPlacement> assignment, ExamPlacement value, Set<ExamPlacement> conflicts) {
    if (!isMPP())
        return 0;
    Exam exam = value.variable();
    ExamPlacement initial = exam.getInitialAssignment();
    if (initial == null)
        return 0;
    int penalty = 0;
    if (value.getRoomPlacements() != null)
        for (ExamRoomPlacement rp : value.getRoomPlacements()) {
            if (initial.getRoomPlacements() == null || !initial.getRoomPlacements().contains(rp))
                penalty++;
        }
    return penalty;
}

Example 59 with Exam

use of org.cpsolver.exam.model.Exam in project cpsolver by UniTime.

the class StudentDirectConflicts method getValue.

@Override
public double getValue(Assignment<Exam, ExamPlacement> assignment, Collection<Exam> variables) {
    int ret = 0;
    ExamModel m = (ExamModel) getModel();
    for (ExamPeriod p : m.getPeriods()) {
        Map<ExamStudent, Set<Exam>> students = ((ExamModel) getModel()).getStudentsOfPeriod(assignment, p);
        for (Set<Exam> exams : students.values()) {
            int nrExams = exams.size();
            if (nrExams > 1)
                ret += nrExams - 1;
        }
    }
    if (m.isCheckForPeriodOverlaps()) {
        for (ExamPeriod p : m.getPeriods()) {
            for (ExamPeriod q : m.getPeriods()) {
                if (p.getIndex() < q.getIndex() && p.hasIntersection(q)) {
                    Map<ExamStudent, Set<Exam>> s1 = m.getStudentsOfPeriod(assignment, p);
                    Map<ExamStudent, Set<Exam>> s2 = m.getStudentsOfPeriod(assignment, q);
                    for (Map.Entry<ExamStudent, Set<Exam>> e : s1.entrySet()) {
                        ExamStudent s = e.getKey();
                        if (!e.getValue().isEmpty()) {
                            Set<Exam> x = s2.get(s);
                            if (x != null && x.isEmpty()) {
                                x1: for (Exam x1 : e.getValue()) {
                                    for (Exam x2 : x) {
                                        if (p.hasIntersection(x1, x2, q)) {
                                            ret += 1;
                                            break x1;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return ret;
}

Example 60 with Exam

use of org.cpsolver.exam.model.Exam in project cpsolver by UniTime.

the class StudentDirectConflicts method getValue.

@Override
public double getValue(Assignment<Exam, ExamPlacement> assignment, ExamPlacement value, Set<ExamPlacement> conflicts) {
    Exam exam = value.variable();
    int penalty = 0;
    ExamPeriod period = value.getPeriod();
    ExamModel m = (ExamModel) getModel();
    Map<ExamStudent, Set<Exam>> students = m.getStudentsOfPeriod(assignment, period);
    for (ExamStudent s : exam.getStudents()) {
        Set<Exam> exams = students.get(s);
        if (exams == null)
            continue;
        int nrExams = exams.size() + (exams.contains(exam) ? 0 : 1);
        if (nrExams > 1)
            penalty++;
    }
    if (m.isCheckForPeriodOverlaps()) {
        for (ExamPeriod p : m.getPeriods()) {
            if (period.hasIntersection(p)) {
                Map<ExamStudent, Set<Exam>> others = m.getStudentsOfPeriod(assignment, p);
                s: for (ExamStudent s : exam.getStudents()) {
                    Set<Exam> exams = students.get(s);
                    if (exams == null || exams.size() + (exams.contains(exam) ? 0 : 1) <= 1) {
                        Set<Exam> other = others.get(s);
                        if (other != null && !other.isEmpty())
                            for (Exam x : other) {
                                if (period.hasIntersection(exam, x, p)) {
                                    penalty++;
                                    continue s;
                                }
                            }
                    }
                }
            }
        }
    }
    /*
        for (ExamStudent s : exam.getStudents()) {
            Set<Exam> exams = s.getExams(assignment, period);
            if (exams.isEmpty()) continue;
            int nrExams = exams.size() + (exams.contains(exam) ? 0 : 1);
            if (nrExams > 1)
                penalty++;
        }
        */
    return penalty;
}