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Hybrid metapopulation agent-based epidemiological models for efficient insight on the individual scale: A contribution to green computing

Authors: Bicker, Julia; Schmieding, Rene; Meyer-Hermann, Michael; Kühn, Martin Joachim;

Hybrid metapopulation agent-based epidemiological models for efficient insight on the individual scale: A contribution to green computing

Abstract

Emerging infectious diseases and climate change are two of the major challenges in 21st century. Although over the past decades, highly-resolved mathematical models have contributed in understanding dynamics of infectious diseases and are of great aid when it comes to finding suitable intervention measures, they may need substantial computational effort and produce significant CO2 emissions. Two popular modeling approaches for mitigating infectious disease dynamics are agent-based and population-based models. Agent-based models (ABMs) offer a microscopic view and are thus able to capture heterogeneous human contact behavior and mobility patterns. However, insights on individual-level dynamics come with high computational effort that scales with the number of agents. On the other hand, population-based models using e.g. ordinary differential equations (ODEs) are computationally efficient even for large populations due to their complexity being independent of the population size. Yet, population-based models are restricted in their granularity as they assume a (to some extent) homogeneous and well-mixed population. To manage the trade-off between computational complexity and level of detail, we propose spatial- and temporal-hybrid models that use ABMs only in an area or time frame of interest. To account for relevant influences to disease dynamics, e.g., from outside, due to commuting activities, we use population-based models, only adding moderate computational costs. Our hybridization approach demonstrates significant reduction in computational effort by up to 98% -- without losing the required depth in information in the focus frame. Concluding, hybrid epidemiological models can provide insights on the individual scale where necessary, using aggregated models where possible, thereby making a contribution to green computing.

Keywords

Computational Efficiency, Metapopulation Model, Infectious disease dynamics, Infectious Disease Dynamics, Populations and Evolution (q-bio.PE), Agent-based Modeling, Hybrid Modeling, Infectious and parasitic diseases, RC109-216, I.6.5; G.4; J.3, Agent-based Model, Metapopulation model, Article, Hybrid modeling, Computational efficiency, Energy reduction, Populations and Evolution, Agent-based modeling, FOS: Biological sciences, 65Y05, 65Y20, 3404, 60J70, Infectious Disease Modeling

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Top 10%
Average
Average
Green
gold