{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:56:19Z","timestamp":1760151379803,"version":"build-2065373602"},"reference-count":74,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,3,11]],"date-time":"2022-03-11T00:00:00Z","timestamp":1646956800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Future Internet"],"abstract":"<jats:p>This paper presents an approach for the modeling and the simulation of the spreading of COVID-19 based on agent-based modeling and simulation (ABMS). Our goal is not only to support large-scale simulations but also to increase the simulation resolution. Moreover, we do not assume an underlying network of contacts, and the person-to-person contacts responsible for the spreading are modeled as a function of the geographical distance among the individuals. In particular, we defined a commuting mechanism combining radiation-based and gravity-based models and we exploited the commuting properties at different resolution levels (municipalities and provinces). Finally, we exploited the high-performance computing (HPC) facilities to simulate millions of concurrent agents, each mapping the individual\u2019s behavior. To do such simulations, we developed a spreading simulator and validated it through the simulation of the spreading in two of the most populated Italian regions: Lombardy and Emilia-Romagna. Our main achievement consists of the effective modeling of 10 million of concurrent agents, each one mapping an individual behavior with a high-resolution in terms of social contacts, mobility and contribution to the virus spreading. Moreover, we analyzed the forecasting ability of our framework to predict the number of infections being initialized with only a few days of real data. We validated our model with the statistical data coming from the serological analysis conducted in Lombardy, and our model makes a smaller error than other state of the art models with a final root mean squared error equal to 56,009 simulating the entire first pandemic wave in spring 2020. On the other hand, for the Emilia-Romagna region, we simulated the second pandemic wave during autumn 2020, and we reached a final RMSE equal to 10,730.11.<\/jats:p>","DOI":"10.3390\/fi14030083","type":"journal-article","created":{"date-parts":[[2022,3,11]],"date-time":"2022-03-11T12:58:36Z","timestamp":1647003516000},"page":"83","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["High-Performance Computing and ABMS for High-Resolution COVID-19 Spreading Simulation"],"prefix":"10.3390","volume":"14","author":[{"given":"Mattia","family":"Pellegrino","sequence":"first","affiliation":[{"name":"Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1808-4487","authenticated-orcid":false,"given":"Gianfranco","family":"Lombardo","sequence":"additional","affiliation":[{"name":"Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4669-512X","authenticated-orcid":false,"given":"Stefano","family":"Cagnoni","sequence":"additional","affiliation":[{"name":"Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3528-0260","authenticated-orcid":false,"given":"Agostino","family":"Poggi","sequence":"additional","affiliation":[{"name":"Department of Engineering and Architecture, University of Parma, 43124 Parma, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/0025-5564(95)92756-5","article-title":"Global stability for the SEIR model in epidemiology","volume":"125","author":"Li","year":"1995","journal-title":"Math. 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