Publications (13)
Analysis and Improvement of Eviction Enforcement
Baris Ata, Yuwei Zhou
Each year, nearly 13,000 eviction orders are issued in Cook County, Illinois. While most of these orders have an enforcement deadline, a portion does not. The Cook County Sheriff's…
Dynamic Scheduling of a Multiclass Queue in the Halfin-Whitt Regime: A Computational Approach for High-Dimensional Problems
Baris Ata, Ebru Kasikaralar
We consider a multi-class queueing model of a telephone call center, in which a system manager dynamically allocates available servers to customer calls. Calls can terminate throug…
A Queueing Model of Dynamic Pricing and Dispatch Control for Ride-Hailing Systems Incorporating Travel Times
Amir Anastasios Alwan, Baris Ata, Yuwei Zhou
A system manager makes dynamic pricing and dispatch control decisions in a queueing network model motivated by ride-hailing applications. A novel feature of the model is that it in…
Adaptive Training for Correlated Fading Channels with Feedback
Manish Agarwal, Michael Honig, Baris Ata
We consider data transmission through a time-selective, correlated (first-order Markov) Rayleigh fading channel subject to an average power constraint. The channel is estimated at…
Latent Agents in Networks: Estimation and Targeting
Baris Ata, Alexandre Belloni, Ozan Candogan
We consider a network of agents. Associated with each agent are her covariate and outcome. Agents influence each other's outcomes according to a certain connection/influence struct…
Singular Control of (Reflected) Brownian Motion: A Computational Method Suitable for Queueing Applications
Baris Ata, J. Michael Harrison, Nian Si
Motivated by applications in queueing theory, we consider a class of singular stochastic control problems whose state space is the d-dimensional positive orthant. The original prob…
Heavy traffic analysis of open processing networks with complete resource pooling: asymptotic optimality of discrete review policies
Baris Ata, Sunil Kumar
We consider a class of open stochastic processing networks, with feedback routing and overlapping server capabilities, in heavy traffic. The networks we consider satisfy the so-cal…
Drift Control of High-Dimensional RBM: A Computational Method Based on Neural Networks
Baris Ata, J. Michael Harrison, Nian Si
Motivated by applications in queueing theory, we consider a stochastic control problem whose state space is the -dimensional positive orthant. The controlled process evolves…
A Diffusion Model of Dynamic Participant Inflow Management
Baris Ata, Deishin Lee, Mustafa H. Tongarlak
This paper studies a diffusion control problem motivated by challenges faced by public health agencies who run clinics to serve the public. A key challenge for these agencies is to…
Dynamic Scheduling of a Parallel-Server Queueing System: A Computational Method for High-Dimensional Problems
Baris Ata, Ebru Kasikaralar
A key operational challenge for call centers is to decide, in real time, which waiting customer should be served by which available agent. This is known as skill-based routing, and…
Dynamic control of stochastic matching systems in heavy traffic: An effective computational method for high-dimensional problems
Baris Ata, Yaosheng Xu
Bipartite matching systems arise in many settings where agents or tasks from two distinct sets must be paired dynamically under compatibility constraints. We consider a high-dimens…
On optimality gaps in the Halfin--Whitt regime
Baris Ata, Itai Gurvich
We consider optimal control of a multi-class queue in the Halfin--Whitt regime, and revisit the notion of asymptotic optimality and the associated optimality gaps. The existing res…
A Dynamic Model for Managing Volunteer Engagement
Baris Ata, Mustafa H. Tongarlak, Deishin Lee +1
Non-profit organizations that provide food, shelter, and other services to people in need, rely on volunteers to deliver their services. Unlike paid labor, non-profit organizations…