Search Results - "AKTÜRK, M"

A two-stage decision dependent stochastic approach for airline flight network expansion by Şafak, Özge, Çavuş, Özlem, Aktürk, M. Seli̇m

“…Airlines need to expand their flight networks with developing new routes and introducing more flights to increase their market share. In this work, we propose…”
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Resilient airline scheduling to minimize delay risks by Şi̇mşek, Deni̇z, Aktürk, M. Seli̇m

“…Airlines tend to design their flights schedules with the primary concern of the minimization of operational costs. However, the recently emerging idea of…”
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Stochastic lot sizing problem with nervousness considerations by Koca, E., Yaman, H., Aktürk, M.S.

“…•The multistage stochastic lot sizing problem with controllable processing times under nervousness considerations is introduced.•Setup oriented nervousness is…”
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Integrated aircraft-path assignment and robust schedule design with cruise speed control by Şafak, Özge, Gürel, Si̇nan, Aktürk, M. Seli̇m

“…Assignment of aircraft types, each having different seat capacity, operational expenses and availabilities, critically affects airlines' overall cost. In this…”
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A strong conic quadratic reformulation for machine-job assignment with controllable processing times by Aktürk, M. Seli̇m, Atamtürk, Alper, Gürel, Si̇nan

“…We describe a polynomial-size conic quadratic reformulation for a machine-job assignment problem with separable convex cost. Because the conic strengthening is…”
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Assessing impacts of introducing ship-to-store service on sales and returns in omnichannel retailing: A data analytics study by Serkan Akturk, M., Ketzenberg, Michael, Heim, Gregory R.

“…Omnichannel retailing features, such as ship-to-store (STS) service, are designed to deliver a seamless shopping experience for customers. For a retailer,…”
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An exact solution approach for risk-averse mixed-integer multi-stage stochastic programming problems by Mahmutoğulları, Ali İrfan, Çavuş, Özlem, Aktürk, M. Selim

“…Risk-averse mixed-integer multi-stage stochastic programming problems are challenging, large scale and non-convex optimization problems. In this study, we…”
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Aircraft Rescheduling with Cruise Speed Control by Akturk, M. Selim, Atamturk, Alper, Gurel, Sinan

“…Airline operations are subject to frequent disruptions typically due to unexpected aircraft maintenance requirements and undesirable weather conditions…”
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Exploring the Competitive Dimension of Omnichannel Retailing by Akturk, M. Serkan, Ketzenberg, Michael

“…We use a proprietary data set from a national department store chain and evaluate the competitive impact of the launch of a buy-online-and-pick-up-in-store…”
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Multi-stage airline scheduling problem with stochastic passenger demand and non-cruise times by Şafak, Özge, Çavuş, Özlem, Selim Aktürk, M.

“…•We propose a novel mixed-integer three-stage stochastic nonlinear programming model.•We suggest a scenario group-wise decomposition algorithm to provide lower…”
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Impact of Competitor Store Closures on a Major Retailer by Akturk, M. Serkan, Ketzenberg, Michael

“…We use a proprietary data set from a national US department store chain to investigate the impact of competitor store closures on a major retailer. The…”
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Flight Network-Based Approach for Integrated Airline Recovery with Cruise Speed Control by Arikan, Uğur, Gürel, Sinan, Aktürk, M. Selim

“…Airline schedules are generally tight and fragile to disruptions. Disruptions can have severe effects on existing aircraft routings, crew pairings, and…”
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Estimating impacts of logistics processes on online customer ratings: Consequences of providing technology‐enabled order tracking data to customers by Akturk, M. Serkan, Mallipeddi, Rakesh R., Jia, Xingzhi

“…Recent advances in logistics tracking technologies have enabled e‐commerce firms to both accurately track the shipments and obtain accurate estimates of…”
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Stochastic lot sizing problem with controllable processing times by Koca, Esra, Yaman, Hande, Selim Aktürk, M.

“…In this study, we consider the stochastic capacitated lot sizing problem with controllable processing times where processing times can be reduced in return for…”
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The Value of Multi-Stage Stochastic Programming in Risk-Averse Unit Commitment Under Uncertainty by Mahmutogullari, Ali Irfan, Ahmed, Shabbir, Cavus, Ozlem, Akturk, M. Selim

“…Day-ahead scheduling of electricity generation or unit commitment is an important and challenging optimization problem in power systems. Variability in net…”
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Accommodating new flights into an existing airline flight schedule by Şafak, Özge, Atamtürk, Alper, Selim Aktürk, M.

“…•Propose two novel approaches to accommodate new flights into an existing flight schedule of a particular day.•Present strong mixed-integer conic quadratic…”
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Bounds on risk-averse mixed-integer multi-stage stochastic programming problems with mean-CVaR by Mahmutoğulları, Ali İrfan, Çavuş, Özlem, Aktürk, M. Selim

“…•We propose a group subproblem approach for mixed-integer multi-stage stochastic problems with dynamic mean conditional value-at-risk.•We consider different…”
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Integrated aircraft and passenger recovery with cruise time controllability by Arikan, Ugur, Gurel, Sinan, Akturk, M. Selim

“…Disruptions in airline operations can result in infeasibilities in aircraft and passenger schedules. Airlines typically recover aircraft schedules and…”
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A multi-stage stochastic programming approach in master production scheduling by Körpeoğlu, Ersin, Yaman, Hande, Selim Aktürk, M.

“…Master Production Schedules (MPS) are widely used in industry, especially within Enterprise Resource Planning (ERP) software. The classical approach for…”
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Aircraft and passenger recovery during an aircraft’s unexpected unavailability by Naz Yeti̇moğlu, Yücel, Selim Aktürk, M.

“…Airlines design their initial schedules under the assumption that all resources will be available on time and flights will operate as planned. However, some…”
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