Assistant Professor

Dept. of Electrical Engineering
University at Buffalo, the State University of New York, Buffalo, NY 14260

Office: 223, Davis Hall
Email: gesualdo[at]buffalo[dot]edu
Fax: +1-716-645-3656
Phone: +1-716-645-1012

[Google Scholar Profile]
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Professional Experiences

Areas of Interest

  • Big Data Analytics
  • Distributed optimization of large-scale complex networks
  • Algorithmic game theory and applications
  • Variational Inequality methods for engineering
  • Optimization of smart grids
  • Distributed bio-inspired signal processing

Recent News

  • October 2014: New Paper--"Distributed Methods for Nonconvex Constraints Multi-Agent Probles-Part I: Theory". This two-part paper proposes a general distributed algorithmic framework for the minimization of a nonconvex smooth (sum-utility) function subject to nonconvex smooth constraints. Our framework is very general and flexible; it unifies several existing Successive Convex Approximation-based algorithms such as (proximal) gradient or Newton type methods, block coordinate (parallel) descent schemes, difference of convex functions methods, and improves on their convergence properties. Part II customizes our general methods to several multi-agent optimization problems, mainly in communications and networking; the result is a new class of (distributed) algorithms that compare favorably on existing ad-hoc (centralized) schemes (when they exist) [Part I] [Part II].
  • October 2014: New Paper--"A Parallel Stochastic Optimization Method for Nonconvex Multi-Agent Optimization Problems". This paper proposed the first distributed best-response (i.e., non gradient-like) algorithmic framework for nonconvex multi-agent problems. The framework can be applied to a variety of problems in signal processing, communications, and networking [PDF].
  • July 2014: New Paper--"Hybrid Random/Deterministic Parallel Algorithms for Nonconvex Big Data Optimization". This paper develops for the first time general parallel (random/deterministic) algorithms for nonconvex nonsmooth large-scale optimization problems [PDF].
  • June 2014: I will teach a course entitled “Advanced Decomposition Algorithms for Multi-agent Systems ” at the CIME Summer School on “Centralized and Distributed Multi-agent Optimization: Models and Algorithms”, Cetraro, Italy, June 23-28, 2014. More info here; Registration is free!
  • April 2014: I will give the talk "Parallel and Distributed Optimization of Large-Scale Systems," Dept. of Electrical Engineering, Viterbi School of Engineering, University of Southern California (USC), Los Angeles, CA, USA.
  • April 2014: I will give the talk "Parallel and Distributed Optimization of Large-Scale Systems," Dept. of Electrical Engineering, Penn State University, State College, PA, USA.
  • March 2014: I will give the talk "Parallel and Distributed Optimization of Large-Scale Systems," Dept. of Electrical Engineering, University of California (UCLA), Los Angeles, CA, USA.
  • Feb. 2014: New Paper--"Parallel Algorithms for Big Data Optimization". This paper proposes a decomposition framework for the parallel (greedy) optimization of nonconvex nonsmooth functions, arising naturally in large-scale optimization problems [PDF].
  • Sept. 2013: I will visit the Dept. of Electrical and Computer Engineering and the Digital Technology Center at University of Minnesota.
  • August 2013: I will visit the Dept. of Electrical and Computer Science at the Nothwestern University.
  • August 2013: I received the 2013 UB Exceptional Scholars – Young Investigator Award.
  • August 2013: I'm an invited speaker at the IMSE summer school on Multi-Agent Networked Systems, University of Illinois at Urbana Champaign, August 15-19, 2013.
  • July 2013: I will give the invited talk "Distributed Optimization of Multiuser Systems," DIET Dept., University of Rome, "La Sapienza", Rome, Italy.
  • June 2013: I will give the invited lectures "Parallel Optimization of Large-Scale Multi-Agent Systems" in the 59th Workshop of the International School of Mathematics, entitled "Nonlinear Optimization: a Bridge from Theory to Applications," Erice, Sicily, Italy.
  • April 2013: I'm an Associated Editor of IEEE Transactions on Signal Processing.
  • Feb. 2013: I received the 2013 NSF Faculty Early Career Development (CAREER) award.
  • Dec. 2012: I will give the invited talk "Complex Variational Inequalities and Applications" in the 2012 Workshop on Complementarity and its Extensions, Institute of Mathematical Sciences, National University of Singapore, Singapore.
  • Dec. 2012: I will give the tutorial "Distributed Algorithms for Multiuser Systems" in the 2012 Workshop on Complementarity and its Extensions, Institute of Mathematical Sciences, National University of Singapore, Singapore.
  • Nov. 2012: I will give the short course "Variational Inequality Theory: A Mathematical Framework for Distributed Decision Makings" in the Electrical Engineering and Computer Science Dept. at Syracuse University, NY, USA.
  • Aug. 2012: I will give the invited talk "Monotone Communication Games" in the 21st International Symposium on Mathematical Programming (ISMP), Berlin.
  • July 2012: National Science Foundation (NSF) funds our research on "Distributed Decision Making in Cognitive Ad-Hoc Networks based on Bilevel Equilibrium Programming" (role: PI).
  • Jan. 2012: I'm an Associated Editor of IEEE Signal Processing Letters (Jan. 2012-Dec. 2014).
  • Nov. 2011: I have been elected member of the IEEE Signal Processing for Communications and Networking Technical Committee (SPCOM TC) for a three year term (Jan. 2012 - Dec. 2014).
  • Highly cited paper (ISI Web of Knowledge) status for my 2008 IEEE Trans. SP paper "Optimal Linear Precoding Strategies for Wideband Noncooperative Systems Based on Game Theory – Part I: Nash Equilibria," (coauthored by D. P. Palomar and S. Barbarossa) on Game Theory applied to the design of Multiuser Systems.
  • July 2011: I will give the tutorial "Variational Inequality Theory: A Mathematical Framework for Distributed Decision Makings" in Acropolis/COST IC0902 First International Summer School on Cognitive Wireless Communications, Florence, Italy.
  • May 2011: I will give the tutorial "Variational Inequality Theory: A Mathematical Framework for Multiuser Communication Systems and Signal Processing" in IEEE ICASPP 2011, Prague, Czech Republic (together with Daniel P. Palomar).
  • Aug. 2010: I will give the tutorial “Convex Optimization, Game Theory, and Variational Inequality Theory in Multiuser Communication Systems” in EUSIPCO 2010, Aalborg, Denmark (together with Daniel P. Palomar).
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