Results (
Thai) 1:
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- Aij : Matrix of days off of the nurse i expressed as a vector of 0 (no day off) and+1 (day off) for each day j;- Pij : preferences of the nurse i expressed as-1 (no work), 0 (no preference) and +1 (work) for each day j (preferences are only related to day and not shifts);- Djk : demand in nurses on day j and shift k;- Qik : available shift k for the nurse i;- T : maximum of days worked by a nurses inone week;- c+ : cost of an over-covering;- c- : cost of an under-covering;- i : cost of a preference not respected of thenurse i;- ik : cost of switching assignment;- ri : benefit of the respect of the typical schedule of the nurse i (aggregation ofseniority, experiences, skills ...).
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