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Juba Ziani

Contact information

Phone number
(626) 905-0523
e-mail address
<first initial><last name>@seas.upenn.edu
<first name>.<last name>@gmail.com
3401 Walnut Street,
Philadelphia, PA.

About me

I am a Warren Center Postdoctoral Fellow in the Department of Computer and Information Science at UPenn.
I received my PhD in Computer Science from the Computing and Mathematical Science Department at Caltech, where I was advised by Adam Wierman and Katrina Ligett. I was awarded the Bhansali Family Doctoral Prize in Computer Science for my dissertation on data, and its implications for markets and society. Throughout my PhD, I have been supported in part by by the National Science Foundation, the US-Israel Binational Science Foundation, the Linde Graduate Fellowship at Caltech, and the Inaugural PIMCO Graduate Fellowship at Caltech. Prior to that, I received a Master's degree in Operations Research at Columbia University where I worked with Augustin Chaintreau, and an engineering degree from Supelec, a French Grande Ecole.
I visited and interned at Microsoft Research New England in Spring and Summer 2017, where I worked with Yiling Chen, Nicole Immorlica, Brendan Lucier and Vasilis Syrgkanis. I visited Aaron Roth at University of Pennsylvania during Summer 2018. I participated in the Data Privacy semester at the Simons Institute for the Theory of Computing in Spring 2019.

Research Interests

My main interests lie at the intersection of Computer Science and Economics. My primary focus is to study the new economic and algorithmic challenges posed by the generation of larger and larger amounts of data. In particular, I am interested in the following questions: Here is a link to my CV.



Access to Population-Level Signaling as a Source of Inequality
N. Immorlica, K. Ligett and J.Ziani
FAT* 2019
Downstream Effects of Affirmative Action
S. Kannan, A. Roth and J.Ziani
FAT* 2019
Third-party Data Providers Ruin Simple Mechanisms
Y. Cai, F. Echenique, H. Fu, K. Ligett, A. Wierman and J. Ziani
In submission
Optimal Data Acquisition for Statistical Estimation
Y. Chen, N. Immorlica, B. Lucier, V. Syrgkanis and J. Ziani
EC '18
Non-Exploitable Protocols for Repeated Cake Cutting
O. Tamuz, S. Vardi and J. Ziani
Association for the Advancement of Artificial Intelligence (AAAI), 2018
Inference on Auctions with Weak Assumptions on Information
V. Syrgkanis, E. Tamer and J. Ziani
2017 manuscript, in revise and resubmit phase
Efficiently Characterizing Games consistent with Perturbed Equilibrium Observations
V. Chandrasekaran, K. Ligett and J. Ziani
Poster at EC'16, in submission
Joint Data Purchasing and Data Placement in a Geo-Distributed Data Market
X. Ren, P. London, J. Ziani and A. Wierman
Poster at SIGMETRICS 2016, IEEE/ACM Transactions on Networking 2018
Accuracy for Sale: Aggregating Data with a Variance Constraint
R. Cummings, K. Ligett, A. Roth, Z. S. Wu, and J. Ziani
Innovations in Theoretical Computer Science (ITCS), 2015
Cliques in the union of graphs
R. Aharoni, E. Berger, M. Chudnovsky and J. Ziani
Journal of Combinatorial Theory, Series B, 2015

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