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Browsing Endüstri Mühendisliği / Industrial Engineering by Author

Browsing Endüstri Mühendisliği / Industrial Engineering by Author "Kula, Ufuk"

Now showing items 1-11 of 11

A framework for balanced service and cross-selling by using queuing science

Kula, Ufuk; Akbilek, Nevra; Demiriz, Ayhan (SPRINGER, 2009)

Contact centers are complex call centers to handle large volume of inbound, outbound or both types of calls depending on the business purpose. Call centers assume the role of the primary contact medium for many companies ...
A reinforcement learning algorithm with fuzzy approximation for semi Markov decision problems

Kula, Ufuk; Beyazit Ocaktan (IOS PRESS, 2015)

Real life stochastic problems are generally large-scale, difficult to model, and therefore, suffer from the curses of dimensionality. Such problems cannot be solved by classical optimization methods. This paper presents a ...
A stochastic programming model for resequencing buffer content optimisation in mixed-model assembly lines

Günay, Elif Elçin; Kula, Ufuk (TAYLOR & FRANCIS LTD, 2017)

In mixed-model assembly lines, smooth operation of the assembly line depends on adherence to the scheduled sequence. However, during production process, this sequence is altered both intentionally and uninstentionally. A ...
Analysis of cross-price effects on markdown policies by using function approximation techniques

Kula, Ufuk (2013)
Analysis of cross-price effects on markdown policies by using function approximation techniques

Kula, Ufuk (ELSEVIER SCIENCE BV, 2013)

Markdown policies for product groups having significant cross-price elasticity among each other should be jointly determined. However, finding optimal policies for product groups becomes computationally intractable as the ...
Estimating Job Waiting Times in Production Systems with Cross-Trained Setup Crews

Kula, Ufuk (TAYLOR & FRANCIS LTD, 2004)
Integration of production quantity and control chart design in automotive manufacturing

Günay, Elif Elçin; Kula, Ufuk (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

We formulate the problem as a two-stage stochastic programming model. In the first stage, control limit parameter k is decided for the p-chart and in the second stage, production quantity is determined that minimizes total ...
Markdown Optimization via Approximate Dynamic Programming

Kula, Ufuk (2012)
Markdown Optimization via Approximate Dynamic Programming

Kula, Ufuk (ATLANTIS PRESS, 2013)

We consider the markdown optimization problem faced by the leading apparel retail chain. Because of substitution among products the markdown policy of one product affects the sales of other products. Therefore, markdown ...
Re-mining item associations: Methodology and a case study in apparel retailing

Demirer, Ahmet; Kula, Ufuk; Demiriz, Ayhan (ELSEVIER SCIENCE BV, 2011)

Association mining is the conventional data mining technique for analyzing market basket data and it reveals the positive and negative associations between items. While being an integral part of transaction data, pricing ...
World Scientific Proceedings Series on Computer Engineering and Information Science

Rifat Gurcan Ozdemir; Kula, Ufuk; C Kahraman; Ee Kerre; Ft Bozbura (WORLD SCIENTIFIC PUBL CO PTE LTD, 2012)

In this study, mixed model assembly line balancing and sub-assembly selection problems are solved jointly. The mixed model assembly line balancing problem requires that tasks are assigned to workstations with balanced ...