SUNMONTUEWEDTHUFRISAT
Events for April 17, 2019
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Center for Cyber-Physical Systems and Internet of Things and Ming Hsieh Institute Seminar Series
Wed, Apr 17, 2019 @ 10:30 AM - 11:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Chi Wang, Founder and CEO of TerraQuanta
Talk Title: Algorithm Development on Planetary Scale Dataset
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: Developing algorithms on satellite data and extracting information useful for industrial applications sounds straightforward, but when the dataset becomes multiple petabytes, life becomes hard in every aspect. In this talk, we will share our experiences in 1) How we deal with large remote sensing datasets with limited infrastructure, 2) How machine learning approach combines with HPC helps with algorithm development, 3) Our application cases, e.g. predicting total planted areas of soybeans to predict soybean futures price. The talk will be tailored for general audience with engineering backgrounds, and will not go deep into technical/mathematical details.
Biography: Chi Wang obtained his B.S. degree in Electrical and Computer Engineering from Shanghai Jiao Tong University in 2011, and later obtained his Ph.D. in electrical engineering from University of Southern California in 2016. After graduation, he founded TerraQuanta in China, a startup company developing AI platform to analyze multi-PB remote sensing data. TerraQuanta provides data engine of our physical earth with a particular focus on global agriculture. Dr. Wang has successfully raised several million USD from prestigious investors in China, also he is listed "30 under "30 by Forbes China and "30 under "30 by Hurun Report.
Host: Edmond A Jonckheere
Location: Hughes Aircraft Electrical Engineering Center (EEB) - RTH 109
Audiences: Everyone Is Invited
Contact: Talyia White
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Center for Cyber-Physical Systems and Internet of Things and Ming Hsieh Institute Seminar Series
Wed, Apr 17, 2019 @ 03:00 PM - 04:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Professor Suman Chakravorty , Aerospace Engineering, Texas A&M University
Talk Title: A Decoupling Principle in Stochastic Optimal Control and Its Implications
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: The problem of Stochastic Optimal Control is ubiquitous in Robotics and Control since it is the fundamental formulation for decision-making under uncertainty. The answer to the problem can be computed by solving an associated Dynamic Programming (DP) problem. Unfortunately, the DP paradigm is also synonymous with the infamous "Curse of Dimensionality (COD)", a phrase coined by the discoverer of the Dynamic Programming paradigm, Richard Bellman, nearly 60 years ago, to capture the fact that the computational complexity of solving a DP problem grows exponentially in the dimension of the state space of the problem.
In this talk, we will introduce a newly discovered paradigm in stochastic optimal control, called Decoupling, that allows us to separate the design of the open and closed loops of a stochastic optimal control problem with continuous control space. This "Decoupled" solution allows us to break the COD inherent in DP problems, while remaining near-optimal, to third order, to the true stochastic control. The implications of the Decoupled design are examined in the context of Model Predictive Control (MPC) and Reinforcement Learning (RL). We shall introduce two algorithms, called the Trajectory Optimized Perturbation Feedback Control (T-PFC), and the Decoupled Data based Control(D2C), for the MPC and RL problems respectively. We shall also examine the consequences of the decoupling principle in partially observed/ belief space planning problems and present the Trajectory optimized Linear Quadratic Gaussian (T-LQG) algorithm.
Biography: Suman Chakravorty obtained his B.Tech in Mechanical Engineering in 1997 from the Indian Institute of Technology, Madras and his PhD in Aerospace Engineering from the University of Michigan, Ann Arbor in 2004. From August 2004- August 2010, he was an Assistant Professor with the Aerospace Engineering Department at Texas A&M University, College Station and since August 2010, he has been an Associate Professor in the department. Dr. Chakravorty's broad research interests lie in the estimation and control of stochastic dynamical systems with application to autonomous, distributed robotic mapping and planning, and situational awareness problems. He is a member of AIAA, ASME and IEEE. He is an Associate Editor for the ASME Journal on Dynamical Systems, Measurement and Control and the IEEE Robotics and Automation Letters.
Host: Mihailo Jovanovic
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Talyia White
