This paper considers the scheduling problems with the objective of minimizing the total completion time on two parallel identical machines with given unavailable periods. The jobs are assumed to be nonresumable. If there is one unavailable period on one of the two machines, we prove that SPT has...

This paper considers coordinated scheduling on parallel identical machines with batch delivery. Jobs are first processed on m parallel and identical machines in the manufacturing facility and then delivered to the customer in batches. There are v identical transporters that can carry up to c...

In this paper, we investigate the capacitated two-parallel machines scheduling problem, where one machine is only available for a special period of time after which it can no longer process any job while the other machine is continuously available. Our objective is to minimize the completion...

This paper considers a parallel-machine scheduling problem with machine maintenance. There are unavailable periods on each of the first k machines, and the remaining m - k machines are always available, where 1 [less-than-or-equals, slant] k [less-than-or-equals, slant] m is an...

Interaction effects have been consistently found important in explaining the variation in outcomes in many scientific research fields. Yet, in practice, variable selection including interactions is complicated due to the limited sample size, conflicting philosophies regarding model...

Every year, the federal government regulates how many pounds of summer flounder (while these fish are called summer flounder, they are caught throughout the year) can be caught along the eastern seaboard. Annually, the federal government sets the total allowable landings (TAL) based on...

In many scientific and medical settings, large-scale experiments are generating large quantities of data that lead to inferential problems involving multiple hypotheses. This has led to recent tremendous interest in statistical methods regarding the false discovery rate (FDR). Several authors...

In this paper, we discuss the portfolio optimization problem with real-world constraints under the assumption that the returns of risky assets are fuzzy numbers. A new possibilistic mean-semiabsolute deviation model is proposed, in which transaction costs, cardinality and quantity constraints...