16 citations · 25 across the 9 of their papers we have counts for
10 papers
LoWAgent: A Low-Resource Multilingual Benchmark for Web Agents
Ocean Monjur, Daud Ahmad Nisar, Shahriar Kabir Nahin +4
Web agents are typically evaluated on English-language interfaces, leaving their ability to operate across the world's multilingual websites largely unexplored. This gap is especia…
Observability and State Estimation for Smooth and Nonsmooth Differential Algebraic Equation Systems
Hesham Abdelfattah, Sameh A. Eisa, Peter Stechlinski
In this work, we extend the sensitivity-based rank condition (SERC) test for local observability to another class of systems, namely smooth and nonsmooth differential-algebraic equ…
Extremum Seeking with High-Order Lie Bracket Approximations: Achieving Exponential Decay Rate
Victoria Grushkovskaya, Sameh A. Eisa
This paper focuses on the further development of the Lie bracket approximation approach for extremum seeking systems. Classical results in this area provide extremum seeking algori…
A New Nonsmooth Optimal Control Framework for Wind Turbine Power Systems
Hesham Abdelfattah, Sameh A. Eisa, Peter Stechlinski
Optimal control theory extending from the calculus of variations has not been used to study the wind turbine power system (WTPS) control problem, which aims at achieving two target…
Identifiability and Observability of Nonsmooth Systems via Taylor-like Approximations
Peter Stechlinski, Sameh Eisa, Hesham Abdelfattah
New sensitivity-based methods are developed for determining identifiability and observability of nonsmooth input-output systems. More specifically, lexicographic calculus is used t…
Model-Free Source Seeking by a Novel Single-Integrator with Attenuating Oscillations and Better Convergence Rate: Robotic Experiments
Shivam Bajpai, Ahmed A. Elgohary, Sameh A. Eisa
In this paper we validate, including experimentally, the effectiveness of a recent theoretical developments made by our group on control-affine Extremum Seeking Control (ESC) syste…
Higher-order Lie bracket approximation and averaging of control-affine systems with application to extremum seeking
Sameer Pokhrel, Sameh A. Eisa
This paper provides a rigorous derivation for what is known in the literature as the Lie bracket approximation of control-affine systems in a more general and sequential framework…
Analyzing and Mimicking the Optimized Flight Physics of Soaring Birds: A Differential Geometric Control and Extremum Seeking System Approach with Real Time Implementation
Sameh A. Eisa, Sameer Pokhrel
For centuries, soaring birds -- such as albatrosses and eagles -- have been mysterious and intriguing for biologists, physicists, aeronautical/control engineers, and applied mathem…
A novel hypothesis for how albatrosses optimize their flight physics in real-time: an extremum seeking model and control for dynamic soaring
Sameer Pokhrel, Sameh A. Eisa
The albatross optimized flight maneuver -- known as dynamic soaring -- is nothing but a wonder of biology, physics, and engineering. By utilizing dynamic soaring, the bird can trav…
Control-Affine Extremum Seeking Control with Attenuating Oscillations: A Lie Bracket Estimation Approach
Sameer Pokhrel, Sameh A. Eisa
Control-affine Extremum Seeking Control (ESC) systems have been increasingly studied and applied in the last decade. In a recent effort, many control-affine ESC structures have bee…