no code implementations • 19 Dec 2023 • Evan Johnson, Mark Lewis
However, two life history traits -- MPB's size-dependent fecundity and preference for large trees -- are responsible for 25% of the peak number of beetles.
no code implementations • 15 Jan 2022 • Xiunan Wang, Hao Wang, Pouria Ramazi, Kyeongah Nah, Mark Lewis
Recently, we created a method in forecasting the daily number of confirmed cases of infectious diseases by combining a mechanistic ordinary differential equation (ODE) model for infectious classes and a generalized boosting machine learning model (GBM) for predicting how public health policies and mobility data affect the transmission rate in the ODE model [WWR+].
no code implementations • 8 Dec 2021 • Xiunan Wang, Hao Wang, Pouria Ramazi, Kyeongah Nah, Mark Lewis
Typically, a hypothesis is made on the form of the transmission rate with respect to time.
no code implementations • 24 Jul 2021 • Amit Verma, Mark Lewis, Gary Kochenberger
Quadratic Unconstrained Binary Optimization (QUBO) is recognized as a unifying framework for modeling a wide range of problems.
no code implementations • 19 Jun 2021 • Amit Verma, Mark Lewis
Quadratic Unconstrained Binary Optimization (QUBO) is a general-purpose modeling framework for combinatorial optimization problems and is a requirement for quantum annealers.
no code implementations • 4 Apr 2021 • Amit Verma, Mark Lewis
The broad applicability of Quadratic Unconstrained Binary Optimization (QUBO) constitutes a general-purpose modeling framework for combinatorial optimization problems and are a required format for gate array and quantum annealing computers.
no code implementations • 24 Mar 2021 • Amit Verma, Mark Lewis
The Quadratic Unconstrained Binary Optimization (QUBO) modeling and solution framework is a requirement for quantum and digital annealers.
no code implementations • 21 Sep 2017 • Mark Lewis, Gary Kochenberger, John Metcalfe
In this paper we focus on the unconstrained binary quadratic optimization model, maximize x^t Qx, x binary, and consider the problem of identifying optimal solutions that are robust with respect to perturbations in the Q matrix.. We are motivated to find robust, or stable, solutions because of the uncertainty inherent in the big data origins of Q and limitations in computer numerical precision, particularly in a new class of quantum annealing computers.
1 code implementation • 27 May 2017 • Mark Lewis, Fred Glover
The Quadratic Unconstrained Binary Optimization problem (QUBO) has become a unifying model for representing a wide range of combinatorial optimization problems, and for linking a variety of disciplines that face these problems.
no code implementations • 26 May 2017 • Fred Glover, Mark Lewis, Gary Kochenberger
The quadratic unconstrained binary optimization (QUBO) problem arises in diverse optimization applications ranging from Ising spin problems to classical problems in graph theory and binary discrete optimization.