A 2.542-approximation for precedence constrained single machine scheduling with release dates and total weighted completion time objective
نویسنده
چکیده
We present a √ e/( √ e−1)-approximation algorithm for the nonpreemptive scheduling problem to minimize the total weighted completion time of jobs on a single machine subject to release dates and precedence constraints. The previously best known approximation algorithm dates back to 1997; its performance guarantee can be made arbitrarily close to the Euler constant e [18].
منابع مشابه
A $(2 + \epsilon)$-approximation for precedence constrained single machine scheduling with release dates and total weighted completion time objective
We give a (2 + ǫ)-approximation algorithm for minimizing total weighted completion time on a single machine under release time and precedence constraints. This settles a recent conjecture made in [18]
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عنوان ژورنال:
- Oper. Res. Lett.
دوره 44 شماره
صفحات -
تاریخ انتشار 2016