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Work32

Resource type

Dissertation32

Creator

Ansari, Sina1
Boada-Collado, Pol1
Bollapragada, Vijaya Raghavendra1
Duque Villarreal, Daniel1
Escallon-Barrios, Mariana1
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Keyword

Service Operations3
Optimization2
Queueing2
Robust Optimization2
Robust optimization2
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Subject

Operations research[remove]32
Industrial engineering7
Management3
Applied mathematics2
Business administration2
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Language

en32

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Filtering by: 2024-06-24 Remove constraint 2024-06-24 Subject Operations research Remove constraint Subject: Operations research

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Essay on Foundation Models and Reinforcement Learning

Description:

In this dissertation, we aim to develop a theoretical understanding of foundation models and reinforcement learning. We delve into a comprehensive analysis of specific aspects within these domains. The focal points of our study are as follows: • Generative Adversarial Imitation Learning (GAIL) with Neural Networks: GAIL is poised to...

Keyword:

Reinforcement Leanring, In-Context Learning, Imitation Leanring, and Transformer

Subject:

Statistics and Operations research

Creator:

Zhang, Yufeng

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

08/23/2023

Date Created:

2023-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_1013414 and http://dissertations.umi.com/northwestern:16740
Methods for Derivative-Free Optimization with Applications in Machine Learning

Description:

Derivative-free optimization (DFO) has received growing attention due to important problems arising in practice. Various research communities, ranging from machine learning to engineering design, have adopted distinct DFO methods. In this thesis, we present extensive studies as a meaningful step towards a comprehensive understanding of DFO methods. We study the...

Subject:

Operations research

Creator:

Xuan, Melody Qiming

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

08/23/2023

Date Created:

2023-01-01

Resource Type:

Dissertation

Alternate Identifier:

http://dissertations.umi.com/northwestern:16779 and etdadmin_upload_1014300
Generalized Submodular Optimization: Theory, Algorithms and Applications

Description:

Submodularity is a well-known concept in integer programming and combinatorial optimization. Submodular set functions capture the diminishing returns phenomenon, which has wide-ranging applications in various domains. Typically, a submodular set function models the utility of homogenous items selected from a single ground set. Selecting an item or not is naturally...

Keyword:

mixed-integer programming, polyhedral, convex hull, and nonlinear optimization

Subject:

Operations research

Creator:

Yu, Qimeng

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

08/23/2023

Date Created:

2023-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_1013578 and http://dissertations.umi.com/northwestern:16754
Efficient Second-Order Methods for Second-Order Cone Programs and Continuous Nonlinear Two-Stage Optimization Problems

Description:

This dissertation presents novel advancements in the field of continuous nonlinear optimization, focusing on the development of efficient second-order methods for second-order conic programs (SOCPs) and continuous nonlinear two-stage optimization problems. The primary focus is on the theory and computations of Sequential Quadratic Programming (SQP) methods, which are widely used...

Keyword:

Nonlinear Optimization, Second-order Cone Programs, Two-stage Optimization, and Sequential Quadratic Programming

Subject:

Industrial engineering and Operations research

Creator:

Luo, Xinyi

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

08/23/2023

Date Created:

2023-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_1013576 and http://dissertations.umi.com/northwestern:16752
Closing the supply-demand gap: Scheduling policies for volunteer organizations

Description:

Volunteers play an essential role in humanitarian and non-profit organizations that strive to improve society. 30% of the population in the United States volunteered in 2019, and this percentage has been stable for the past two decades. This dissertation is motivated by the scheduling decision process in nonprofit organizations. These...

Keyword:

volunteer scheduling and nonprofit operations

Subject:

Logic and Operations research

Creator:

Escallon-Barrios, Mariana

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

08/23/2023

Date Created:

2023-01-01

Resource Type:

Dissertation

Alternate Identifier:

http://dissertations.umi.com/northwestern:16687 and etdadmin_upload_1009527
Data-Driven Optimization of Patient Pathways for Healthcare Delivery

Description:

This dissertation studies the integration of analytical modeling and optimization, machine learning, and Bayesian learning to optimize cost, access, and quality of healthcare delivery. Chapter 1 models computer-aided triage (patient prioritization) as feature-based priority queuing where types (diseases) are not perfectly observed but are inferred from observed features using a...

Subject:

Operations research

Creator:

Singh, Simrita

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

09/22/2022

Date Created:

2022-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_918485 and http://dissertations.umi.com/northwestern:16166
A Novel Parallel Adaptive Survivor Selection Framework for Large-Scale Simulation Optimization

Description:

For stochastic simulation optimization in a modern computing era, we introduce a new parallel framework for solving very large-scale problems using a ranking & selection (R&S) approach that simulates all systems or feasible solutions to provide a global statistical guarantee. We propose a parallel adaptive survivor selection (PASS) framework that...

Keyword:

master-worker, simulation, parallel, stochastic, large-scale, and optimization

Subject:

Applied mathematics, Statistics, and Operations research

Creator:

Pei, Linda

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

06/22/2022

Date Created:

2022-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_903888 and http://dissertations.umi.com/northwestern:16108
Data-Driven Analytics in Healthcare Operations

Description:

This dissertation contains three essays that study the operational challenges in healthcare-related fields. We strive to integrate analytical modeling and empirical methods to study decision-making under uncertainty for practice- and data-driven problems. We use large-scale datasets (millions) gathered from years of data collection. To gain access to these proprietary data,...

Keyword:

Healthcare, Resource Sharing, and Data-Driven

Subject:

Operations research

Creator:

Jiang, Yangzi

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

06/22/2022

Date Created:

2022-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_903140 and http://dissertations.umi.com/northwestern:16089
Essays on the Interplay of Supply Chain Management and Market Growth

Description:

Market growth is an important goal for consumer businesses, often leading to lower marginal cost, higher operational efficiency, and larger assortment size - all of which help achieve dominance over competition. Yet, retailers and manufacturers alike should carefully manage their supply chains to sustain growth in customer base and extract...

Subject:

Operations research

Creator:

Glinskiy, Vadim

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

06/22/2022

Date Created:

2022-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_878312 and http://dissertations.umi.com/northwestern:15922
Economics of Service Operations: Information, Simplified Controls and Omnichannel Services

Description:

In this dissertation we consider how simple operational levers affect a firm's revenue and consumer surplus. In particular, we focus on information disclosure as an useful control for omnichannel services.In the first chapter we consider a revenue-maximizing service firm that caters to price and delay-sensitive customers. The firm offers a...

Keyword:

Pricing in Queuing Systems, Strategic Queuing, Information Disclosure, Omnichannel Services, Digital Innovation, and Service Operations

Subject:

Management and Operations research

Creator:

Ghosh, Abhishek

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

10/07/2021

Date Created:

2021-01-01

Resource Type:

Dissertation

Alternate Identifier:

http://dissertations.umi.com/northwestern:15646 and etdadmin_upload_832994

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