{"pk":65569,"title":"Modeling Infectious Disease Spread: Comparison of the Agent-Based-Modeling and Differential-Equation Approaches","subtitle":null,"abstract":"In epidemiology, the SIR model is commonly used to describe the population dynamics ofinfectious diseases. It divides the population into three categories: Susceptible, Infected, and Recovered. We consider two approaches to describe its population dynamics. In the Ordinary Differential Equation (ODE) approach, we solve a set of differential equations that describe the rate of change of the fraction of each category. In the Agent-Based Model (ABM), we keep track of the state of each person and its position in a two-dimensional lattice. The ODE model has two model parameters, the infection strength b and the recovery rate k, whereas the ABM has three model parameters describing the diffusion, infection, and recovery rates. Our research aims to compare the two approaches and to establish a relationship between the ODE and ABM parameters. To find the optimal values of the b and k parameters that give matching results to the ABM simulation results, we employ two methods. In the first method, we determine the optimal b and k values by minimizing the differences between the curves generated by the ODE and ABM approaches. In the second method, we use an established relation between the end-state ratio of uninfected people and the contact number b/k. Our results show that these two estimation methods give consistent results and explain the fast-diffusion limit situation.","language":"en","license":null,"keywords":[{"word":"Agent-Based-Modeling"},{"word":"Ordinary Differential Equation"},{"word":"Infectious Disease Spread"},{"word":"Population-Level Prediction, Individual-Based Simulation"}],"section":"Research Posters","is_remote":true,"remote_url":"https://escholarship.org/uc/item/534309f9","frozenauthors":[{"first_name":"EunSang","middle_name":"","last_name":"Park","name_suffix":"","institution":"","department":""},{"first_name":"Changho","middle_name":"","last_name":"Kim","name_suffix":"","institution":"","department":""}],"date_submitted":"2024-12-06T22:54:20Z","date_accepted":"2024-12-06T22:54:20Z","date_published":"2024-12-13T08:00:00Z","render_galley":null,"galleys":[{"label":"","type":"pdf","path":"https://journalpub.escholarship.org/ucm_mwp_ucmurj/article/65569/galley/50198/download/"}]}