Industrial Problems Seminar - Algorithms for Designing and Analyzing Next-Generation Energy and Aerospace Systems

Friday, September 14, 2012 - 1:25pm - 2:25pm
Lind 305
Tuhin Sahai (United Technologies Corporation)
In this work, we will develop decentralized solutions for analysis and
uncertainty quantification of large networks. Motivated by standard
problems and approaches in continuous spaces, we will construct scalable
algorithms for graph clustering. It will be demonstrated that graph
clustering aids in the development of scalable methods for simulating and
propagating uncertainty through high dimensional differential algebraic
equations (DAEs). In particular, our scalable algorithms are iterative
schemes that rely on graph partitioning for finding weak connections
that accelerate convergence. These algorithms will be demonstrated on
models of aircraft communication networks, building systems and social

Tuhin Sahai is a Staff Research Scientist at the United Technologies Research Center (UTRC), broadly interested in the design, analysis and uncertainty quantification of complex systems. Of particular interest are large networks of continuous and discrete dynamical systems that tend to be analytically and computationally intractable. Typical application areas include energy efficient buildings, smart grids, social networks, UAV swarms, next generation electrical and communication networks for aircraft, sensor networks and MEMS oscillator networks. At UTRC, Tuhin serves as a principal investigator for DARPA's GUARD-DOG program on scalable analysis of social networks in MapReduce. Tuhin's work on decentralized clustering received the 2012 Technical Excellence Award, the highest individual award at UTRC for contributions to Science and Engineering.

Prior to joining UTRC, Tuhin earned his Ph.D. in January 2008 from Cornell University, where he was a McMullen Fellow and won the H.D. Block teaching award. Tuhin received his Masters and Bachelors in Aerospace Engineering from the Indian Institute of Technology, Bombay in 2002.