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Presented By: Department of Mathematics

Van Eenam Lecture: Recent advances in human-machine interaction models and stochastic optimization

Thaleia Zariphopoulou, Presidential Chair in Mathematics, University of Texas at Austin

Thaleia Zariphopoulou, University of Texas at Austin Thaleia Zariphopoulou, University of Texas at Austin
Thaleia Zariphopoulou, University of Texas at Austin
Abstract: I will introduce a family of human-machine interaction (HMI) models in optimal asset allocation and portfolio choice (robo-advising). Modeling difficulties stem from the limited ability to quantify the human’s risk preferences and describe their evolution, but also from the fact that the stochastic environment, in which the machine optimizes, adapts to real-time incoming information that is exogenous to the human. Furthermore, the human’s risk preferences and the machine’s states may evolve at different scales. This interaction creates an adaptive cooperative game with both asymmetric and incomplete information exchange between the two parties.

As a result, challenging questions arise on, among others, how frequently the two parties should communicate, what information can the machine accurately detect, infer and predict, how the human reacts to exogenous events, how to improve the inter-linked reliability between the human and the machine, and others. Such HMI models give rise to new, non-standard optimization problems that combine adaptive stochastic control, stochastic differential games, optimal stopping, multi-scales and learning.

A reception for Professor Zariphopoulou will be held Tuesday, March 21, at 5:00 p.m. in the Mathematics Upper Atrium, East Hall
Thaleia Zariphopoulou, University of Texas at Austin Thaleia Zariphopoulou, University of Texas at Austin
Thaleia Zariphopoulou, University of Texas at Austin

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