Tarı, Zehra Sibel
Recent Improvements in document image systems and their low-cost implementation on networks of microcomputers is leading to the reengineering of many information systems. We describe how document image systems can be applied to information systems. In order to compare the performance of a conventional information system with one implemented with document imaging processing capability we conducted a discrete event simulation. We modeled the conventional information system for processing graduate student admissions. Then we modeled the system assuming the availability of an. image document capability. The results of 10 simulation runs for each condition indicated that the document image system resulted in faster processing times for graduate student applications and reduced time to answer faculty and student inquires.


Operation assignment and capacity allocation problem in automated manufacturing systems
Bilgin, Selin; Azizoğlu, Meral (Elsevier BV, 2009-03-01)
We address an operation assignment and capacity allocation problem that arises in semiconductor industries and flexible manufacturing systems. We assume the automated machines have scarce time and tool magazine capacities and the tools are available in limited quantities. The aim is to select a subset of operations with maximum total weight. We show that the problem is NP-hard in the strong sense, develop two heuristics and a Tabu Search procedure. The results of our computational tests have revealed that o...
Optimum design of grillage systems using harmony search algorithm
Erdal, Ferhat; Saka, Mehmet Polat; Department of Engineering Sciences (2007)
Harmony search method based optimum design algorithm is presented for the grillage systems. This numerical optimization technique imitates the musical performance process that takes place when a musician searches for a better state of harmony. For instance, jazz improvisation seeks to find musically pleasing harmony similar to the optimum design process which seeks to find the optimum solution. The design algorithm considers the displacement and strength constraints which are implemented from LRFD-AISC (Loa...
Beam search algorithm for capacity allocation problem in flexible manufacturing systems
Ozpeynirci, Selin Bilgin; Azizoğlu, Meral (Elsevier BV, 2009-05-01)
This study considers the operation assignment and tool allocation problem in flexible manufacturing systems. A set of operations together with their required tools are selected so as to maximize the total weight. The machines have limited time and tool magazine capacities and the tools are available in limited quantities. We develop a beam search algorithm and obtain near optimal solutions for large size problems very quickly.
Inference of switching networks by using a piecewise linear formulation
Akçay, Didem; Öktem, Hakan; Department of Scientific Computing (2005)
Inference of regulatory networks has received attention of researchers from many fields. The challenge offered by this problem is its being a typical modeling problem under insufficient information about the process. Hence, we need to derive the apriori unavailable information from the empirical observations. Modeling by inference consists of selecting or defining the most appropriate model structure and inferring the parameters. An appropriate model structure should have the following properties. The model...
Optimal scope of work for international integrated systems
Ertem, Mustafa Alp; Serpil, Canan; Department of Industrial Engineering (2005)
This study develops a systems integration project scheduling model which identifies the assignment of activity responsibilities that minimizes expected project implementation cost, considering the project risk. Assignment of resources to the individual jobs comprising the project is a persistent problem in project management. Mostly, skilled labor is an essential resource and both the time and the cost incurred to perform a job depend on the resource to which job is assigned. A systems integration project i...
Citation Formats
R. MOURANT and Z. S. Tarı, “SIMULATION CONCEPTS FOR INFORMATION-SYSTEM,” COMPUTERS & INDUSTRIAL ENGINEERING, pp. 541–544, 1993, Accessed: 00, 2020. [Online]. Available: