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Essays on spillover effects in digital media
(Massachusetts Institute of Technology, 2020)
In this thesis, I address spillover effects in digital media across 3 different essays. In Chapter 1, I focus on estimating social spillovers in the consumption of online news. Exploiting regional rainfall as a natural ...
Real-Time Calibration of Large-Scale Traffic Simulators: Achieving Efficiency Through the Use of Analytical Mode
(Massachusetts Institute of Technology, 2020)
Stochastic traffic simulators are widely used in the transportation community to model real-world urban road networks in applications ranging from real-time congestion routing and control to traffic state prediction. Online ...
Past price and trend effects in promotion planning; from prediction to prescription
(Massachusetts Institute of Technology, 2020)
Sales promotions are a popular type of marketing strategy. When undertaking a sales promotion, products are promoted using short-term price reductions to stimulate their demand and increase their sales. These sales promotions ...
Dynamic node clustering in hierarchical optical data center network architectures
(Massachusetts Institute of Technology, 2020)
During the past decade an increasing trend in the Data Center Network's traffic has been observed. This traffic is characterized mostly by many small bursty flows (mice) that last for less than few milliseconds as well as ...
Anomaly detection methods for detecting cyber attacks in industrial control systems
(Massachusetts Institute of Technology, 2020)
Industrial control systems (ICS) are pervasive in modern society and increasingly under threat of cyber attack. Due to the critical nature of these systems, which govern everything from power and wastewater plants to ...
Reputation with stopping time decision
(Massachusetts Institute of Technology, 2020)
This paper studies a long run relationship between two players while one player has reputation concern and the other player's decision is a stopping time. The equilibrium structure depends on the value of the long run ...
Interdependent diffusion : the social contagion of interacting beliefs
(Massachusetts Institute of Technology, 2020)
A common simplifying assumption in theories of social contagion is that ideas or beliefs spread from person to person in a social network without regard to other ideas or beliefs that spread concurrently. This assumption ...
Essays on the counterintuitive consequences of labor policies in service industries
(Massachusetts Institute of Technology, 2020)
In essays one and two, I examine how unstable schedules affect financial performance. In essay one, using 52 weeks of data from over 1,000 stores and more than 15,000 employees of a specialty retailer, I estimate the effect ...
Investigating the feasibility and impact of integrating wire-arc additive manufacturing in aerospace tooling applications
(Massachusetts Institute of Technology, 2020)
The use of wire-arc additive manufacturing (WAAM) as fabrication method for Iron-Nickel 36 (Invar36) alloy aerospace tooling is a growing area of interest for many tooling companies and composite aircraft manufacturers. ...
Applications of risk pooling for the optimization of spare parts with stochastic demand within large scale networks
(Massachusetts Institute of Technology, 2020)
Amazon is able to deliver millions of packages to customers every day through its Fulfillment Center (FC) network that is powered by miles of material handling equipment (MHE) such as conveyor belts. Unfortunately, this ...