Artem Tsikiridis

Postdoctoral Researcher, CWI.

prof_pic.jpg

artem.tsikiridis@cwi.nl

123 Science Park

1098XG Amsterdam, Netherlands

Welcome! I am a postdoctoral researcher at Centrum Wiskunde & Informatica (CWI). I am hosted by Guido Schäfer in the Networks & Optimization (N&O) group. I enjoy working on problems lying in the intersection of computer science and economics, with a particular interest in algorithmic mechanism design, auctions and pricing and online algorithms.

In 2023, I completed my PhD in the Department of Informatics of Athens University of Economics and Business. I was very fortunate to be advised by Vangelis Markakis and be part of the department’s Theory Group.

Here is my CV.

I am on the job market for 2025. My SIGecom job market profile can be found here. Feel free to reach out!

Program Committees: EC (25), WINE (24), AAMAS (25), ECAI (24), SAGT (23)

Journal Reviewer: Theoretical Computer Science (23, 24)

news

Dec 14, 2024 I am in the program committee of EC 2025.
Nov 18, 2024 I gave a talk at the Dutch Seminar on Optimization on our upcoming WINE paper. You can watch the video here.
Sep 17, 2024 Our paper with Georgios Amanatidis, Federico Fusco and Rebecca Reiffenhäuser Pandora’s Box Problem Over Time has been accepted to WINE 2024!
Jul 16, 2024 I am in the Program Committees of WINE 2024 and AAMAS 2025.
Jun 25, 2024 I spent the past two weeks in Greece! During this time, I gave a talk at the Archimedes Research Unit in Athens and attended WALE 2024 in Kefalonia.
May 18, 2024 Our paper with Riccardo Colini-Baldeschi, Sophie Klumper and Guido Schäfer To Trust or Not to Trust: Assignment Mechanisms with Predictions in the Private Graph Model has been accepted to EC 2024! By the way, if you are attending the Marketplace Innovation Workshop next week, you can attend Riccardo’s short talk about it on Monday. Also, you may visit our poster!
Apr 22, 2024 I am visiting Stefano Leonardi and his group at Sapienza University of Rome for one month!
Apr 05, 2024 Happy to be part of the local organization team of SAGT 2024. The conference will be held at CWI in September. See you in Amsterdam!
Mar 04, 2024 I am in the Programme Committee of ECAI 2024.
Nov 24, 2023 I gave a talk at the Computational Social Choice Seminar of the University of Amsterdam.

research

working papers
1. Willy Wonka Mechanisms On a Budget
with B. de Keijzer, G. Schäfer, and C. Ventre

journal publications
1. Tight Welfare Guarantees for Pure Nash Equilibria of the Uniform Price Auction
with G. Birmpas, G. Markakis, and O. Telelis
Theory of Computing Systems, Vol. 63, pp. 1451-1469, 2019
[pdf] Supersedes the SAGT 2017 paper below. Appeared as a poster at the Workshop for the 20 years of the Price of Anarchy, 20POA 2019.

conference publications
7. Pandora's Box Problem Over Time
with G Amanatidis, F. Fusco, and R. Reiffenhäuser
WINE 2024, 20th Conference on Web and Internet Economics
[arXiv version] [talk at Dutch Seminar on Optimization]
6. To Trust or Not to Trust: Assignment Mechanisms with Predictions in the Private Graph Model
with R. Colini-Baldeschi, S. Klumper, and G. Schäfer
EC 2024, 25th ACM Conference on Economics and Computation
[arXiv version] [talk at EC24] Appeared as a poster at the (virtual) 9th Marketplace Innovation Workshop.
5. Partial Allocations in Budget-Feasible Mechanism Design: Bridging Multiple Levels of Service and Divisible Agents
with G. Amanatidis, S. Klumper, E. Markakis, and G. Schäfer
WINE 2023, 19th Conference on Web and Internet Economics
[arXiv version] Appeared as a poster at the SLMath workshop on Algorithms, Approximation and Learning in Market and Mechanism Design.
4. On Improved Interval Cover Mechanisms for Crowdsourcing Markets
with E. Markakis, and G. Papasotiropoulos
SAGT 2022, 15th International Symposium on Algorithmic Game Theory
[pdf]
3. Towards a Characterization of Worst Case Equilibria in the Discriminatory Price Auction
with E. Markakis, and A. Sgouritsa
WINE 2021, 17th Conference on Web and Internet Economics
[pdf] [ talk at WINE21]
2. On Core-Selecting and Core-Competitive Mechanisms for Binary Single-Parameter Auctions
with E. Markakis
WINE 2019, 15th Conference on Web and Internet Economics
[pdf] [talk at WINE19 (2:15:00)]
1. Tight Welfare Guarantees for Pure Nash Equilibria of the Uniform Price Auction
with G. Birmpas, E. Markakis, and O. Telelis
SAGT 2017, 10th International Symposium on Algorithmic Game Theory
Best Paper Award
[link] Superseded by the TOCS 2019 paper above.

theses
2. Design and Analysis of Auction Mechanisms: Algorithms and Incentives
PhD Thesis, Athens University of Economics and Business, April 2023
Advisor: Assoc. Prof. Vangelis Markakis
[thesis]
1. Multi-unit Auctions: Equilibria and Inefficiency
MSc Thesis, Athens University of Economics and Business, July 2017
Advisor: Assoc. Prof. Vangelis Markakis
[thesis]

other
1. Integrating Clinical Data from Hospital Databases
with K. Karozos, I. Spartalis, D. Trivela, and V. Vassalos
SWH@ISWC 2018, 1st International Workshop on Semantic Web Technologies for Health Data Management
[pdf]