383 citations · 773 across the 39 of their papers we have counts for
6 papers · 1 filter
Estimating Color-Concept Associations from Image Statistics
Ragini Rathore, Zachary Leggon, Laurent Lessard +1
To interpret the meanings of colors in visualizations of categorical information, people must determine how distinct colors correspond to different concepts. This process is easier…
Analysis and Design of First-Order Distributed Optimization Algorithms over Time-Varying Graphs
Akhil Sundararajan, Bryan Van Scoy, Laurent Lessard
This work concerns the analysis and design of distributed first-order optimization algorithms over time-varying graphs. The goal of such algorithms is to optimize a global function…
Explicit Agent-Level Optimal Cooperative Controllers for Dynamically Decoupled Systems with Output Feedback
Mruganka Kashyap, Laurent Lessard
We consider a dynamically decoupled network of agents each with a local output-feedback controller. We assume each agent is a node in a directed acyclic graph and the controllers s…
A Distributed Optimization Algorithm over Time-Varying Graphs with Efficient Gradient Evaluations
Bryan Van Scoy, Laurent Lessard
We propose an algorithm for distributed optimization over time-varying communication networks. Our algorithm uses an optimized ratio between the number of rounds of communication a…
Direct Synthesis of Iterative Algorithms With Bounds on Achievable Worst-Case Convergence Rate
Laurent Lessard, Peter Seiler
Iterative first-order methods such as gradient descent and its variants are widely used for solving optimization and machine learning problems. There has been recent interest in an…
Integral Quadratic Constraints: Exact Convergence Rates and Worst-Case Trajectories
Bryan Van Scoy, Laurent Lessard
We consider a linear time-invariant system in discrete time where the state and input signals satisfy a set of integral quadratic constraints (IQCs). Analogous to the autonomous li…