Answer by Charles Fox for XOR constraint representation
Let $L$ be the count of $\xi_l$. To prevent any $\xi_l=1$ when $\xi_{l^\prime}=1$, we can have $\sum\xi_l+\xi_{l^\prime}L\le L$. To prevent the case when all binary are $0$, we can have...
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In an scheduling optimization problem, for job $l$, $\xi_l$ is binary variable that $\xi_l=1$ shows job $l$ is selected. $t_{r,l}$ and $t_{e,l}$ are registration time and time that job is completed....
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