Here are some frequently asked questions about how to constrain.
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Please keep in mind the following information: Difficulty of optimization for nurse scheduling problem Finding the optimal value for the nurse scheduling problem is challenging, even with Gorobi, currently considered the world’s best mathematical solver.
We apologize for the manual not being well maintained. For explanation, we will answer the questions in no particular order.
Implementation Scheduling Horizon We need 6 days for previous month.
Implementation Scheduling Horizon We need 6 days for previous month.
How would you implement the following in an emergency department in Thailand, assuming that nurses with higher skill levels can also do the work of lower skill level Nurse scheduling in a hospital emergency department: A case study at a Thai university hospital Specifications ■ The schedule must satisfy the minimum number of nurses required for each job level.
I would like to implement a Call shift for the following paper in Italy Long term nurse scheduling via a decision support system based on linear integer programming: A case study at the University Hospital in Cagliari Specifications • no more than one shift per day should be assigned to nurses (further more, maternity nurses should not work during the night shift);
I would like to implement the following paper in Indonesia with Schedule Nurse Scheduling nurses’ shifts at PGI Cikini Hospital Specifications (1) The number of nurses is constant throughout the scheduling period;
I would like to implement the following paper in Egypt with Schedule Nurse A new formulation and solution for the nurse scheduling problem: A case study in Egypt Specifications ■ The planning horizon is one week, i.
I would like to implement the following paper in Hong Kong with Schedule Nurse Artificial intelligence and end user tools to develop a nurse duty roster scheduling system Specifications Hard constraints ■ There were nine nurses working for day shift and two nurses working for night shift.
How do you implement 44 consecutive hours of rest in 7 days?
How can I set staff preferences, such as individual staff working hours?
How can I set staff preferences, such as individual work days?
How do you implement 44 hours of rest consecutively within 7 days period?
EU law requires at least 11 hours of rest between shifts.
How can I read CSV files interactively in Python? Invoke the file dialog and select the CSV file as above.
Is there any impact changing the integer value of it ?
Is it a bug that the previous month’s week is filled-in in the solution when the previous month’s week contains unset shifts ?
Can I create a original Sudoku problem with Schedule Nurse?
Can you create a school timetable with Schedule Nurse? Yes, it is possible to create it flexibly using Python.
How can I describe the number of staff (hardware and software) required for each task?
How can I ensure that at least one Head or Nurse is on the night shift?
How can I prevent two or more trainees from working the night shift?
How do I model constraints that prevent the concentration of night shifts during the period?
How do I create the shift pattern of ABBBCD? You need a special care for consecutive patterns.
How do I create the shift pattern of ABBCD? You need a special care for consecutive patterns.
How do I create shift the pattern of ABCD? The first line is an implication A → B The second line is an implication A ← B.
What would happen if nothing is constrained? The results from the previous chapter show that the same shift is not always achieved when HeadNurse is used as Preceptor and Trainee as Preceptee.
I would like to hold a meeting between Head Nurses once a month The meeting problem The meeting problem is that the more people who attend a meeting, the narrower the solution space and, worst of all, the lack of a solution.
How can I constrain the use of annual leave? Define a anuual leave in the staff property sheet Define a annual leave shift Define a set of DayOff Replace a DayOff with a set of DayOff Constrain the cardinality for a anuall leave Load the Project File File → Open Project File from GitHub
For each nurse the number of working weed-ends must be less than or equal to the maximum.
How do I describe the number of shifts to equalize among staff?
How do I model at least three days off after consecutive three night shifts?
How do I model at least two days off after night shifts?
Howe do I model forbidden shift type successions? For example, prohibit Early after Late.
How do I model various preferences for staff? Create labels for undesired shift sets.
For each nurse the number of working weed-ends must be less than or equal to the maximum.
How do I model the complete weekend? “If she/he works only one of the two days, Sat and Sun, this is penalized by the corresponding weight.
How can I constrain the minimum number of consecutive work days?
How can I constrain the maximum number of consecutive work days?
I have three shifts per day, each shift can have multiple nurses but at least one nurse needs to have a skill A (e.
How can I implement nurse pairs in Schedule Nurse? Namely:
For instance: nurse A cannot work shifts 2 and 3 on Monday, nurse B can only work shifts 1 and 3 across all days.
I would like to plan shifts with a month frequency Specifications It’s a custom nurse rostering problem.
I want to know how to model that every individual must get at least one night shift break, and must not work two consecutive shifts.
I want to constrain the combination of “competence” and “shift type.
How do I model “no night shift before a weekend off” constraints?
How do I model “both Saturday and Sunday on or off” constraints?
How do you describe a maximum consecutive pattern? Note that the DayType must be changed according to the pattern length as shown below to activate the constraint from the last month continuously.
How do you describe a minimum consecutive pattern? It needs several constraints to do this.
Can I define shift types that the solvers won’t assign?
Differences between hard and soft constraints If a hard constraint is violated, there is no solution.
What is hard constraint? In an optimization model, a hard constraint is a constraint that must be satisfied by any feasible solution to the model.
What is a constraint? A constraint is a condition of an optimization problem that the solution must satisfy.