Synergy in Spreading Processes: From Exploitative to Explorative Foraging Strategies

被引：42

作者：

Perez-Reche, Francisco J. ^{[1
,2
]}

Ludlam, Jonathan J. ^{[3
]}

Taraskin, Sergei N. ^{[1
,4
]}

Gilligan, Christopher A. ^{[5
]}

机构：

[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

[2] Univ Abertay, SIMBIOS Ctr, Dundee, Scotland

[3] Univ Cambridge Churchhill Coll, Cambridge CB3 0DS, England

[4] Univ Cambridge St Catharines Coll, Cambridge CB2 1RL, England

[5] Univ Cambridge, Dept Plant Sci, Cambridge CB2 1EW, England

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 21期

基金：

英国生物技术与生命科学研究理事会;

关键词：

PERCOLATION; EPIDEMIC; INVASION; DYNAMICS; THRESHOLDS; BEHAVIOR;

D O I：

10.1103/PhysRevLett.106.218701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An epidemiological model which incorporates synergistic effects that allow the infectivity and/or susceptibility of hosts to be dependent on the number of infected neighbors is proposed. Constructive synergy induces an exploitative behavior which results in a rapid invasion that infects a large number of hosts. Interfering synergy leads to a slower and sparser explorative foraging strategy that traverses larger distances by infecting fewer hosts. The model can be mapped to a dynamical bond percolation with spatial correlations that affect the mechanism of spread but do not influence the critical behavior of epidemics.

引用

页数：4

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