M.S. THESIS PRESENTATION;Title: Meal Participation Prediction with Bayesian Hierarchical Models

01/10/2021 @ 08:30 – 09:30 – Time: Oct 1, 2021 08:30 AM Istanbul Join Zoom Meeting https://zoom.us/j/6547746234?pwd=ZENZNWtCbUlQRjVMMVFneWtxZGlzZz09 Meeting ID: 654 774 6234 Passcode: 478379 M.S. THESIS PRESENTATION;Title: Meal Participation Prediction with Bayesian Hierarchical Models Abstract: Forecasting sales in the catering industry helps authorities to organize daily transactions efficiently to prevent both waste and business loss. In this study, we focused on […]

M.S. THESIS PRESENTATION;Title: Air Traffic Flow Management Problem with Stochastic Capacities

28/09/2021 @ 11:30 – 13:30 – Speaker: Efe Sertkaya Time: Sep 28, 2021 11:30 AM Istanbul https://zoom.us/j/6547746234?pwd=ZENZNWtCbUlQRjVMMVFneWtxZGlzZz09 Meeting ID: 654 774 6234 Passcode: 478379 Abstract: Air traffic systems have substantial effects on transportation, logistics, and economics in a global scope. Due to both practical significance and intellectual challenges, air traffic flow management problems have been extensively studied for many decades. The […]

DATA-DRIVEN TWO-STAGE INVENTORY PROBLEM

15/09/2021 @ 11:00 – 13:00 – SEMINAR Topic: AYÇA SİMAY ÇOLAK Time: Sep 15, 2021 11:00 AM Istanbul Join Zoom Meeting https://zoom.us/j/6547746234?pwd=ZENZNWtCbUlQRjVMMVFneWtxZGlzZz09 In this thesis, we consider two-stage newsvendor problem where the decision maker selling a seasonal product only uses the historical demand information in her decisions. In our setting, there are two decisions to be made: the order quantity, and […]

M.S.THESIS PRESENTATION: ASSORTMENT PLANNING CONSIDERING SPLIT ORDERS

16/08/2021 @ 10:00 – 12:00 – Topic: Duygu Söylemez Tez Sunumu Time: Aug 16, 2021 10:00 AM Istanbul Join Zoom Meeting https://zoom.us/j/9937664491?pwd=R0FNalFFZUM0Wm9MaitiYWJrbVhodz09 Meeting ID: 993 766 4491 Passcode: 525871 Abstract: When multi-item orders cannot be satisfied through a single shipment stemming from not having all the items in an order in the same warehouse, the cost of packaging and transportation increases and the delivery of the orders can be delayed. In this regard, split order problem is one […]

RANDOM SETS AND CHOQUET-TYPE REPRESENTATIONS

11/08/2021 @ 11:00 – 12:00 – Topic: Sabri Umur Çetin Time: Aug 11, 2021 11:00 AM Istanbul Join Zoom Meeting https://zoom.us/j/6547746234?pwd=ZENZNWtCbUlQRjVMMVFneWtxZGlzZz09 Meeting ID: 654 774 6234 Passcode: 478379 Title: RANDOM SETS AND CHOQUET-TYPE REPRESENTATIONS Abstract:As appropriate generalizations of convex combinations with uncountably many terms, we introduce the so-called Choquet combinations, Choquet decompositions and Choquet convex decompositions, as well as their corresponding […]

Airline Scheduling to Minimize Operational Costs and Variability

10/08/2021 @ 11:00 – 12:00 – Topic: Deniz Şimşek Tez Sunumu Time: Aug 10, 2021 11:00 AM Istanbul Join Zoom Meeting https://zoom.us/j/9937664491?pwd=R0FNalFFZUM0Wm9MaitiYWJrbVhodz09 Meeting ID: 993 766 4491 Passcode: 525871 Title: M.S: Airline Scheduling to Minimize Operational Costs and Variability Abstract: Airlines tend to design their flights schedules with the primary concern of the minimization of operational costs. However, the recently emerging […]

Ph.D THESIS PRESENTATION: “Risk-averse Multi-armed Bandit Problem”

09/08/2021 @ 10:00 – 12:00 – In classical multi-armed bandit problem, the aim is to find a policy maximizing the expected total reward, implicitly assuming that the decision maker is risk-neutral. On the other hand, the decision makers are risk-averse in some real life applications. In this study, we design a new setting for the classical multi-armed bandit problem (MAB) based […]

M.S. THESIS PRESENTATION: DYNAMIC MEAN-VARIANCE PROBLEM: RECOVERING TIME-CONSISTENCY

06/08/2021 @ 15:00 – 16:00 – Speaker: Seyit Emre Düzoylum Advisor:  Asst. Prof. Çağın Ararat Time: August 6, 15:00 https://zoom.us/j/9937664491?pwd=R0FNalFFZUM0Wm9MaitiYWJrbVhodz09 Meeting ID: 993 766 4491 Passcode: 525871 Title: DYNAMIC MEAN-VARIANCE PROBLEM: RECOVERING TIME-CONSISTENCY Abstract: As the foundation of modern portfolio theory, Markowitz’s mean-variance portfolio optimization problem is one of the fundamental problems of financial mathematics. The dynamic version of this problem […]

Assortment Planning Framework With Substitution And Complexity Cost

05/08/2021 @ 14:00 – 16:00 – Speaker: Dilara Sönmez Time: Aug 5, 2021 02:00 PM Istanbul Join Zoom Meeting https://zoom.us/j/9937664491?pwd=R0FNalFFZUM0Wm9MaitiYWJrbVhodz09 Meeting ID: 993 766 4491 Passcode: 525871 Title: Assortment Planning Framework With Substitution And Complexity Cost Abstract: While increasing product variety may have a positive effect on market share, it may lead to difficulties in product management and forecasting, leading to […]

M.S.THESIS PRESENTATION: MPLEMENTING CONDITION-BASED MAINTENANCE: OPTIMIZING MAINTENANCE DECISIONS IN MULTI-COMPONENT SYSTEMS USING MARKOV DECISION PROCESSES

27/07/2021 @ 11:00 – 13:00 –   Speaker:  Mahsa Abbaszadeh Nakhost   Topic: Mahsa Abbaszadeh Nakhost   Time: Jul 27, 2021 11:00 AM Istanbul   Join Zoom Meeting   https://zoom.us/j/9937664491?pwd=R0FNalFFZUM0Wm9MaitiYWJrbVhodz09   Meeting ID: 993 766 4491 Passcode: 525871     Title: M.S.THESIS PRESENTATION: MPLEMENTING CONDITION-BASED MAINTENANCE: OPTIMIZING MAINTENANCE DECISIONS IN MULTI-COMPONENT SYSTEMS USING MARKOV DECISION PROCESSES   Abstract: Maintenance scheduling has […]