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math.OC2026
Dynamic Service Recommendation with Congestion-Dependent Joining: Near-Optimal and Constant-Factor Approximation Algorithms
Yi-Chun Akchen, Sena Asli Bozkurt, Chen-An Lin
Modern service platforms often provide customers with real-time congestion information, such as anticipated waiting times, before they decide whether to use a service. This creates…
math.OC2026
Do You Have My Size In Stock? Assortment and Inventory Optimization Under the Consider-Fit-Then-Choose Choice Model
Yi-Chun Akchen, Kaan Cakiroglu, Felipe Caro +1
In apparel retail and other applications, when a customer's preferred size is unavailable, demand may shift to nearby sizes. This substitution creates new assortment and inventory…
math.OC2020
Column-Randomized Linear Programs: Performance Guarantees and Applications
Yi-Chun Akchen, Velibor V. Mišić
We propose a randomized method for solving linear programs with a large number of columns but a relatively small number of constraints. Since enumerating all the columns is usually…