Elizabeth "Betsy" Hilliard
My CV: [pdf]
Current Research Interests
My research interests sit at the intersection of economics and computer science as seen in areas such as game theory, multi-agent markets, mechanism design and behavioral economics. Currently, we are developing and analyzing agent bidding strategies for the TAC Ad Auctions and TAC AdX competitions. We are also thinking about entertainment and draft mechanisms in Fantasy Football.
I am particularly interested in how to communicate the intricacies of human preferences to autonomous agents working on their behalf, how agents can develop models of human strategy, and how allowing agents to transfer goods to each other changes behavior and outcomes in Markov games.
I also sometimes think about how economics can inform the management of scarce resources as seen in the design of distributed/network systems.
Elizabeth Hilliard, Amy Greenwald, and Victor Naroditskiy. An Algorithm for the Penalized Multiple Choice Knapsack Problem. European Conference on Artificial Intelligence (ECAI 2014), August 2014.
Eric Sodomka, Elizabeth Hilliard, Amy Greenwald, and Michael Littman. Coco-Q: Learning in Stochastic Games with Side Payments. The 30th International Conference on Machine Learning (ICML 2013), June 2013.
Wolfgang Ketter and
JACK: A Java Auction Configuration Kit.
AAMAS-12 Workshop on Agent-Mediated Electronic Commerce (AMEC) and Trading Agent Design and Analysis (TADA), June 2012.
Posters and Presentations
Optimization for Keyword Search Auctions. INFORMS, Nov. 2014. Poster: [pdf]
An Algorithm for the Penalized Multiple Choice Knapsack Problem. European Conference on Artificial Intelligence, Prague, Czech Republic, 2014. Poster: [pdf]
Coco-Q: Learning in Stochastic Games with Side Payments. Cambridge Area Economics and Computer Science Day, April 2013; New England Machine Learning Day, May 2013; The 30th International Conference on Machine Learning (ICML 2013), June 2013. Poster: [pdf] Presentation: [link to video]
JACK: A Java Auction Configuration Kit. Workshop on Trading Agent Design and Analysis, at AAMAS 2012. Valencia, Spain.
Sheridan Teaching Center, Certificate I
Completed a year-long introductory teaching certificate from Brown's Sheridan Center for Teaching.
Teaching Assistant, Introduction to Artificial Intelligence cs141, Spring 2013
Developed course materials including weekly assignments; taught two lectures.
Guest Lecture on Java SWING, cs18
Taught introductory programming students about Java's GUI package, SWING, through an interactive design and development demonstration.
I have served as a Recruitment Czar (in charge of organizing and running the PhD student recruitment weekend and process) for the 2012 and 2013 recruitment seasons.
Women in CS (WiCS) Mentoring
I mentor masters and undergraduate students who are interested in pursuing a graduate degree and/or doing research.
My projects included research on improper payments in the Government Student Loan system, rewriting and improving the basic Regional Recruiting Potential Model (RRPM) in Python as the preliminary effort towards creating an accessible online version of the tool for use by the Army National Guard and collecting and analyzing economic and social metrics of the 300 largest cities in the United States in order to determine what metrics might be useful in predicting which cities would successfully emerge from the Great Recession.
CPLEX and Eclipse and JavaI have worked up notes on using CPLEX and Eclipse and Java together because I can never remember what I'm supposed to do and new students sometimes have trouble getting started. This is specifically for the Brown CS system, but could be helpful more generally.
Wikipedia: Knapsack Problem
I contribute to the Wikipedia site for the Knapsack Problem.
Computer Science: a.k.a. cool, huge, real-world problems
I think that problem solving is the gateway to computer science for many students. It was for me at least. I'm working on a collection of resources and a set of slides that I think are a great way of catching the interest of students who aren't interested in programming or computer games. A work in progress is here, and I welcome suggestions.
Two names, 1 person. I'm legally and professionally Elizabeth, but everyone calls me Betsy. I promise it's a legitimate nickname.
I also have other interests, if you are interested.