lperron
commented
4 years ago 1st one:
you look at maximum sequences of true variables (bounded by the array bounds, or by variables assigned to false)
if len is the length of this sequence.
Then hard_min <= len <= hard_max if len < soft_min, you incur a penalty of (soft_min - len) min_penalty if len > soft_max, you incur a penalty of (len - soft_max) max_penalty
2nd one: same thing, but you count the number of variables assigned to 1 instead of the maximum sequence of variables assigned to one. I hope this helps. Laurent Perron | Operations Research | lperron@google.com | (33) 1 42 68 53 00
Le mer. 27 nov. 2019 à 15:20, asooft notifications@github.com a écrit :
Hello,
I use ortools shift scheduling and i want understand parameters of two variables shiftConstraints and weeklySumConstraints in detail:
// Shift constraints on continuous sequence : // (shift, hard_min, soft_min, min_penalty, // soft_max, hard_max, max_penalty) var shiftConstraints = new(int Shift, int HardMin, int SoftMin, int MinPenalty, int SoftMax, int HardMax, int MaxPenalty)[] { // One or two consecutive days of rest, this is a hard constraint. (0, 1, 1, 0, 2, 2, 0), // Between 2 and 3 consecutive days of night shifts, 1 and 4 are // possible but penalized. (3, 1, 2, 20, 3, 4, 5), };
and
// Weekly sum constraints on shifts days: // (shift, hardMin, softMin, minPenalty, // softMax, hardMax, maxPenalty) var weeklySumConstraints = new(int Shift, int HardMin, int SoftMin, int MinPenalty, int SoftMax, int HardMax, int MaxPenalty)[] { // Constraints on rests per week. (0, 1, 2, 7, 2, 2, 0), // At least 1 night shift per week (penalized). At most 4 (hard). (3, 0, 1, 3, 4, 4, 0), };
I want to increase "o" shift but keep the number of shifts per employee.
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asooft
Hello,
I use ortools shift scheduling and i want understand parameters of two variables shiftConstraints and weeklySumConstraints in detail:
// Shift constraints on continuous sequence : // (shift, hard_min, soft_min, min_penalty, // soft_max, hard_max, max_penalty) var shiftConstraints = new(int Shift, int HardMin, int SoftMin, int MinPenalty, int SoftMax, int HardMax, int MaxPenalty)[] { // One or two consecutive days of rest, this is a hard constraint. (0, 1, 1, 0, 2, 2, 0), // Between 2 and 3 consecutive days of night shifts, 1 and 4 are // possible but penalized. (3, 1, 2, 20, 3, 4, 5), };and
// Weekly sum constraints on shifts days: // (shift, hardMin, softMin, minPenalty, // softMax, hardMax, maxPenalty) var weeklySumConstraints = new(int Shift, int HardMin, int SoftMin, int MinPenalty, int SoftMax, int HardMax, int MaxPenalty)[] { // Constraints on rests per week. (0, 1, 2, 7, 2, 2, 0), // At least 1 night shift per week (penalized). At most 4 (hard). (3, 0, 1, 3, 4, 4, 0), };I want to increase "o" shift but keep the number of shifts per employee.