This paper presents a novel, multi-objective mixed-integer nonlinear programming (MINLP) model for a cell formation problem (CFP) with alternative means. Due to existing contradiction among objectives, three are considered: 1) Minimizing the total cost consisting of; intercellular movements, purchasing, operation, and maintenance; 2) maximizing the utilization of machines in the system; 3) mini...

Weconsider the task assignment problem to heterogeneous parallel serverswith switching delay, where servers can be switched off to save energy. However, switching a server back on involves a constant server-specific delay. We will use one step of policy iteration from a starting policy such as Bernoulli splitting, in order to derive efficient task assignment (dispatching) policies that minimize...

The main contribution of this work is to propose a distributed on-demand routing and wavelength assignment algorithm for WDM networks. The proposed scheme, termed Distributed Light-path Allocation (DLA), is capable to select routes and establish light-paths via message exchanges without imposing a major overhead on the network. The proposed scheme is able to balance the load in a WDM network. T...

When there are different routes from origin to destination in a network, the traffic divides itself over these routes. The resulting assignment is often determined by the travel times on the different routes. When control measures are implemented the travel times for some routes change, which can lead to a change in the assignment. This change in assignment can effect the performance of the who...

This paper explores the creation of a Decision Support System (DSS) for the classification and assignment of support tickets within an Information Technology Service (ITS) organization. With a reliance on lowerskilled, outsourced, or temporary workers, many organizations service desks experience issues with processing of incoming support tickets. Beyond this, these workers require extensive tra...

Fast problem-solving is one of the main keys to a company's reputation. Currently, most business processes are accommodated by applications. Often, applications in companies experience problems due internal and external factors. Users send request solve submitting problem helpdesk tool or application. The requests at application do not go directly technician who has authority them but instead o...

We consider a generalized version of the rooted Connected Facility Location Problem (ConFL) with capacities and prizes on clients as well as capacity constraints on potential facilities. Furthermore, we are interested in selecting and connecting the most profitable client subset (i.e. a prize collecting variant) instead of mandatorily connecting all clients. Connected Facility Location Problems...