Leaders of operational research in Canada since 1958.
60
th
Annual CORS Conference
Halifax, Nova Scotia, June 4-6, 2018
Final Program
CORS 2018 – Conference Program
79
Wednesday, June 6, 2018 • 10:30-12:00
Room: 606
SCA06
Session Chair: Dr. Cenk Sahin
The Rationally Inattentive Newsboy
Dr. Rongyu Wang, Postdoctoral Fellow, Wilfrid Laurier University, [email protected]; Zhao, Xuan
We analyze the ordering behavior of a newsboy who acquires demand information to make inventory decisions by interpreting causal-based forecasts on demand. Due to human beings' limited cognitive ability in information acquisition, the newsboy's actual ordering decisions deviate from the optimal ordering quantity that can maximize the ex-post profit. We adopt the rational inattention framework to model the cognitive limit, and obtain closed-form solutions that describe the newsboy's ordering behavior.
Antecedents & Enablers of Supply Chain Value Creation: An Analysis of Local Procurement & SMEs in Uganda
Richard Kiku, Ph.D. Candidate, Makerere University, [email protected]
This study investigates how small and medium enterprises (SMEs) involved in local procurement create value for the local supply chain. The study focuses on two initiators of value creation: entrepreneurial competencies and supply chain trust. A cross-sectional survey of 294 SMEs in Uganda operating in the construction, furniture and fitting, food processing and agricultural sectors was conducted to test a number of hypothesis, using factor analysis and structural equation modelling to conduct their testing. Results show that building value-driven supply chains in the Uganda’s local procurement context requires SME owner-managers to develop competencies and build an optimal level of trust.
Modeling Flight Operations at Major Airports for Strategic Decision Support
Dr. L. Douglas Smith, Professor, University of Missouri-St. Louis, [email protected]
We present a discrete-event simulation model for planning airside operations and coping with congestion at commercial airports. Embedded in the simulation model are statistical models that capture systematic variation in arrival delays and turnaround times of individual flights. Aircraft movements in adjacent airspace and on the airport surface are represented as interconnected staged queues, which share common resources. Animation of airplane movements and performance statistics reveal dynamic activity in hotspots as schedules and operating rules are changed. Extensive reports from multiple replications of the model allow comprehensive analysis of system performance under different physical configurations and operating practices.
Dynamic Task Scheduling of Multiple-Load Automated Guided Vehicles
Dr. Cenk Sahin, Assistant Professor, Dept. of Industrial Engineering, Cukurova University, [email protected]; Demirtaş, Melek; Hamidy, Sakhi Mohammad
Manufacturing systems should meet demands under a dynamic environment and the environment is generally unpredictable. In this study, some dispatching rules are proposed and compared to methods already used for task determination, delivery-dispatching, pickup-dispatching and load selection problems of Multiple-Load Automated Guided Vehicles (MAGVs) operating in dynamic manufacturing environment. The proposed dispatching rules are simulated and compared with other rules in performance measures.
