Examples with TimeLocation org.cpsolver.coursett.model.TimeLocation used on opensource projects

Example 31 with TimeLocation

use of org.cpsolver.coursett.model.TimeLocation in project cpsolver by UniTime.

the class PriorityStudentWeights method main.

/**
     * Test case -- run to see the weights for a few courses
     * @param args program arguments
     */
public static void main(String[] args) {
    PriorityStudentWeights pw = new PriorityStudentWeights(new DataProperties());
    DecimalFormat df = new DecimalFormat("0.0000");
    Student s = new Student(0l);
    new CourseRequest(1l, 0, false, s, ToolBox.toList(new Course(1, "A", "1", new Offering(0, "A")), new Course(1, "A", "2", new Offering(0, "A")), new Course(1, "A", "3", new Offering(0, "A"))), false, null);
    new CourseRequest(2l, 1, false, s, ToolBox.toList(new Course(1, "B", "1", new Offering(0, "B")), new Course(1, "B", "2", new Offering(0, "B")), new Course(1, "B", "3", new Offering(0, "B"))), false, null);
    new CourseRequest(3l, 2, false, s, ToolBox.toList(new Course(1, "C", "1", new Offering(0, "C")), new Course(1, "C", "2", new Offering(0, "C")), new Course(1, "C", "3", new Offering(0, "C"))), false, null);
    new CourseRequest(4l, 3, false, s, ToolBox.toList(new Course(1, "D", "1", new Offering(0, "D")), new Course(1, "D", "2", new Offering(0, "D")), new Course(1, "D", "3", new Offering(0, "D"))), false, null);
    new CourseRequest(5l, 4, false, s, ToolBox.toList(new Course(1, "E", "1", new Offering(0, "E")), new Course(1, "E", "2", new Offering(0, "E")), new Course(1, "E", "3", new Offering(0, "E"))), false, null);
    new CourseRequest(6l, 5, true, s, ToolBox.toList(new Course(1, "F", "1", new Offering(0, "F")), new Course(1, "F", "2", new Offering(0, "F")), new Course(1, "F", "3", new Offering(0, "F"))), false, null);
    new CourseRequest(7l, 6, true, s, ToolBox.toList(new Course(1, "G", "1", new Offering(0, "G")), new Course(1, "G", "2", new Offering(0, "G")), new Course(1, "G", "3", new Offering(0, "G"))), false, null);
    Assignment<Request, Enrollment> assignment = new DefaultSingleAssignment<Request, Enrollment>();
    Placement p = new Placement(null, new TimeLocation(1, 90, 12, 0, 0, null, null, new BitSet(), 10), new ArrayList<RoomLocation>());
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("With one distance conflict:");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<DistanceConflict.Conflict> dc = new HashSet<DistanceConflict.Conflict>();
            dc.add(new DistanceConflict.Conflict(s, e, (Section) sections.iterator().next(), e, (Section) sections.iterator().next()));
            w[i] = pw.getWeight(assignment, e, dc, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("With two distance conflicts:");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<DistanceConflict.Conflict> dc = new HashSet<DistanceConflict.Conflict>();
            dc.add(new DistanceConflict.Conflict(s, e, (Section) sections.iterator().next(), e, (Section) sections.iterator().next()));
            dc.add(new DistanceConflict.Conflict(s, e, (Section) sections.iterator().next(), e, new Section(1, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null)));
            w[i] = pw.getWeight(assignment, e, dc, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("With 25% time overlapping conflict:");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<TimeOverlapsCounter.Conflict> toc = new HashSet<TimeOverlapsCounter.Conflict>();
            toc.add(new TimeOverlapsCounter.Conflict(s, 3, e, sections.iterator().next(), e, sections.iterator().next()));
            w[i] = pw.getWeight(assignment, e, null, toc);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("Disbalanced sections (by 2 / 10 students):");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            Subpart x = new Subpart(0, "Lec", "Lec", cfg, null);
            Section a = new Section(0, 10, "x", x, p, null);
            new Section(1, 10, "y", x, p, null);
            sections.add(a);
            a.assigned(assignment, new Enrollment(s.getRequests().get(0), i, cfg, sections, assignment));
            a.assigned(assignment, new Enrollment(s.getRequests().get(0), i, cfg, sections, assignment));
            cfg.getContext(assignment).assigned(assignment, new Enrollment(s.getRequests().get(0), i, cfg, sections, assignment));
            cfg.getContext(assignment).assigned(assignment, new Enrollment(s.getRequests().get(0), i, cfg, sections, assignment));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("Same choice sections:");
    pw.iMPP = true;
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<SctAssignment> other = new HashSet<SctAssignment>();
            other.add(new Section(1, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            cr.setInitialAssignment(new Enrollment(cr, i, cfg, other, assignment));
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("Same time sections:");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<SctAssignment> other = new HashSet<SctAssignment>();
            other.add(new Section(1, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null, new Instructor(1l, null, "Josef Novak", null)));
            cr.setInitialAssignment(new Enrollment(cr, i, cfg, other, assignment));
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("Different time sections:");
    Placement q = new Placement(null, new TimeLocation(1, 102, 12, 0, 0, null, null, new BitSet(), 10), new ArrayList<RoomLocation>());
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<SctAssignment> other = new HashSet<SctAssignment>();
            other.add(new Section(1, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), q, null));
            cr.setInitialAssignment(new Enrollment(cr, i, cfg, other, assignment));
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
    System.out.println("Two sections, one same choice, one same time:");
    for (Request r : s.getRequests()) {
        CourseRequest cr = (CourseRequest) r;
        double[] w = new double[] { 0.0, 0.0, 0.0 };
        for (int i = 0; i < cr.getCourses().size(); i++) {
            Config cfg = new Config(0l, -1, "", cr.getCourses().get(i).getOffering());
            Set<SctAssignment> sections = new HashSet<SctAssignment>();
            sections.add(new Section(0, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            sections.add(new Section(1, 1, "y", new Subpart(1, "Rec", "Rec", cfg, null), p, null));
            Enrollment e = new Enrollment(cr, i, cfg, sections, assignment);
            Set<SctAssignment> other = new HashSet<SctAssignment>();
            other.add(new Section(2, 1, "x", new Subpart(0, "Lec", "Lec", cfg, null), p, null));
            other.add(new Section(3, 1, "y", new Subpart(1, "Rec", "Rec", cfg, null), p, null, new Instructor(1l, null, "Josef Novak", null)));
            cr.setInitialAssignment(new Enrollment(cr, i, cfg, other, assignment));
            w[i] = pw.getWeight(assignment, e, null, null);
        }
        System.out.println(cr + ": " + df.format(w[0]) + "  " + df.format(w[1]) + "  " + df.format(w[2]));
    }
}

Example 32 with TimeLocation

use of org.cpsolver.coursett.model.TimeLocation in project cpsolver by UniTime.

the class BrokenTimePatterns method countUselessSlotsBrokenTimePatterns.

/** Number of broken time patterns for this room 
     * @param rc room constraint
     * @param placement placement that is being considered
     * @return number of broken time patterns caused by the given placement
     **/
protected static int countUselessSlotsBrokenTimePatterns(RoomConstraintContext rc, Placement placement) {
    int ret = 0;
    TimeLocation time = placement.getTimeLocation();
    int slot = time.getStartSlot() % Constants.SLOTS_PER_DAY;
    int days = time.getDayCode();
    if ((days & sDaysMWF) != 0 && (days & sDaysMWF) != sDaysMWF) {
        for (int s = slot; s < slot + time.getLength(); s++) {
            int d = (days & sDaysMWF);
            if (d == Constants.DAY_CODES[0] && isEmpty(rc, s, 0, placement)) {
                if (isEmpty(rc, s, 2, placement) != isEmpty(rc, s, 4, placement))
                    ret++;
                if (!isEmpty(rc, s, 2, placement) && !isEmpty(rc, s, 4, placement))
                    ret--;
            } else if (d == Constants.DAY_CODES[2] && isEmpty(rc, s, 2, placement)) {
                if (isEmpty(rc, s, 0, placement) != isEmpty(rc, s, 4, placement))
                    ret++;
                if (!isEmpty(rc, s, 0, placement) && !isEmpty(rc, s, 4, placement))
                    ret--;
            } else if (d == Constants.DAY_CODES[4] && isEmpty(rc, s, 4, placement)) {
                if (isEmpty(rc, s, 0, placement) != isEmpty(rc, s, 2, placement))
                    ret++;
                if (!isEmpty(rc, s, 0, placement) && !isEmpty(rc, s, 2, placement))
                    ret--;
            } else if (d == (Constants.DAY_CODES[0] | Constants.DAY_CODES[2]) && isEmpty(rc, s, 0, placement) && isEmpty(rc, s, 2, placement)) {
                if (isEmpty(rc, s, 4, placement))
                    ret++;
            } else if (d == (Constants.DAY_CODES[2] | Constants.DAY_CODES[4]) && isEmpty(rc, s, 2, placement) && isEmpty(rc, s, 4, placement)) {
                if (isEmpty(rc, s, 0, placement))
                    ret++;
            } else if (d == (Constants.DAY_CODES[0] | Constants.DAY_CODES[4]) && isEmpty(rc, s, 0, placement) && isEmpty(rc, s, 4, placement)) {
                if (isEmpty(rc, s, 2, placement))
                    ret++;
            }
        }
    }
    if ((days & sDaysTTh) != 0 && (days & sDaysTTh) != sDaysTTh) {
        for (int s = slot; s < slot + time.getLength(); s++) {
            if (isEmpty(rc, s, 1, placement) && isEmpty(rc, s, 3, placement))
                ret++;
            int d = (days & sDaysTTh);
            if (d == Constants.DAY_CODES[1] && isEmpty(rc, s, 1, placement) && !isEmpty(rc, s, 3, placement))
                ret--;
            if (d == Constants.DAY_CODES[3] && isEmpty(rc, s, 3, placement) && !isEmpty(rc, s, 1, placement))
                ret--;
        }
    }
    return ret;
}

Example 33 with TimeLocation

use of org.cpsolver.coursett.model.TimeLocation in project cpsolver by UniTime.

the class MinimizeNumberOfUsedGroupsOfTime method estimateLimit.

public int estimateLimit() {
    int nrSlotsUsed = 0;
    int minSlotsUsed = 0;
    boolean firstLecture = true;
    for (Lecture lecture : variables()) {
        boolean first = true;
        int minSlotsUsedThisLecture = 0;
        for (TimeLocation time : lecture.timeLocations()) {
            int min = 0;
            for (int i = 0; i < iGroupsOfTime.length; i++) {
                if (iGroupsOfTime[i].overlap(time))
                    min++;
            }
            if (first) {
                nrSlotsUsed += time.getLength() * time.getNrMeetings();
                minSlotsUsedThisLecture = min;
                first = false;
            } else {
                minSlotsUsedThisLecture = Math.min(minSlotsUsedThisLecture, min);
            }
        }
        if (firstLecture) {
            minSlotsUsed = minSlotsUsedThisLecture;
            firstLecture = false;
        } else {
            minSlotsUsed = Math.min(minSlotsUsed, minSlotsUsedThisLecture);
        }
    }
    return Math.max(Math.max(1, (int) Math.ceil(((double) nrSlotsUsed) / iGroupsOfTime[0].size())), minSlotsUsed);
}

Example 34 with TimeLocation

use of org.cpsolver.coursett.model.TimeLocation in project cpsolver by UniTime.

the class TimeSwap method resolve.

@Override
public Double resolve(Solution<Lecture, Placement> solution, double total, long startTime, Map<Lecture, Placement> assignments, List<Placement> conflicts, int index) {
    Assignment<Lecture, Placement> assignment = solution.getAssignment();
    if (index == conflicts.size())
        return solution.getModel().getTotalValue(assignment) - total;
    Placement conflict = conflicts.get(index);
    Lecture variable = conflict.variable();
    List<TimeLocation> values = variable.timeLocations();
    if (values.isEmpty())
        return null;
    int valIdx = ToolBox.random(values.size());
    int attempts = 0;
    for (int i = 0; i < values.size(); i++) {
        TimeLocation time = values.get((i + valIdx) % values.size());
        if (time.getPreference() > 50)
            continue;
        if (time.equals(conflict.getTimeLocation()))
            continue;
        Placement value = null;
        if (variable.getNrRooms() == 0)
            value = new Placement(variable, time, (RoomLocation) null);
        else if (variable.getNrRooms() == 1)
            value = new Placement(variable, time, conflict.getRoomLocation());
        else
            value = new Placement(variable, time, conflict.getRoomLocations());
        if (!value.isValid() || solution.getModel().inConflict(assignment, value))
            continue;
        assignment.assign(solution.getIteration(), value);
        Double v = resolve(solution, total, startTime, assignments, conflicts, 1 + index);
        assignment.unassign(solution.getIteration(), variable);
        attempts++;
        if (v != null && (!iHC || v <= 0)) {
            assignments.put(variable, value);
            return v;
        }
        if (attempts >= iMaxAttempts || isTimeLimitReached(startTime))
            break;
    }
    return null;
}

Example 35 with TimeLocation

use of org.cpsolver.coursett.model.TimeLocation in project cpsolver by UniTime.

the class TimeChange method selectNeighbour.

@Override
public Neighbour<Lecture, Placement> selectNeighbour(Solution<Lecture, Placement> solution) {
    TimetableModel model = (TimetableModel) solution.getModel();
    Assignment<Lecture, Placement> assignment = solution.getAssignment();
    int varIdx = ToolBox.random(model.variables().size());
    for (int i = 0; i < model.variables().size(); i++) {
        Lecture lecture = model.variables().get((i + varIdx) % model.variables().size());
        Placement old = assignment.getValue(lecture);
        if (old == null)
            continue;
        List<TimeLocation> values = lecture.timeLocations();
        if (values.isEmpty())
            continue;
        int valIdx = ToolBox.random(values.size());
        for (int j = 0; j < values.size(); j++) {
            TimeLocation time = values.get((j + valIdx) % values.size());
            if (time.getPreference() > 50)
                continue;
            Placement placement = null;
            if (lecture.getNrRooms() == 0)
                placement = new Placement(lecture, time, (RoomLocation) null);
            else if (lecture.getNrRooms() == 1)
                placement = new Placement(lecture, time, old.getRoomLocation());
            else
                placement = new Placement(lecture, time, old.getRoomLocations());
            if (placement.isValid() && !model.inConflict(assignment, placement)) {
                SimpleNeighbour<Lecture, Placement> n = new SimpleNeighbour<Lecture, Placement>(lecture, placement);
                if (!iHC || n.value(assignment) <= 0)
                    return n;
            }
        }
    }
    return null;
}