计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2013年
7期
181-184
,共4页
自适应网络%病毒传播%传播模型%重连函数%风险意识%平均场理论
自適應網絡%病毒傳播%傳播模型%重連函數%風險意識%平均場理論
자괄응망락%병독전파%전파모형%중련함수%풍험의식%평균장이론
adaptive network%virus propagation%propagation model%rewiring function%risk awareness%mean field theory
当疾病在人群中爆发时，人们对病毒传播的风险意识和规避行为随着人群中感染密度等因素的变化而作自适应的调整。针对人群中不断变化的风险意识和规避行为，提出在 SIS 网络传播模型中，用时变重连概率函数描述该变化过程，研究自适应网络的动态传播过程。结果证明，网络中时变重连函数的稳定值大，则病毒传播规模小。时变重连概率函数增长速度快，则病毒传播速度慢。表明人们的风险意识高且规避措施全面时，病毒最终的传染规模也小，同时，能及早地认识病毒的危害并采取规避措施，有利于对病毒传播的抑制。
噹疾病在人群中爆髮時，人們對病毒傳播的風險意識和規避行為隨著人群中感染密度等因素的變化而作自適應的調整。針對人群中不斷變化的風險意識和規避行為，提齣在 SIS 網絡傳播模型中，用時變重連概率函數描述該變化過程，研究自適應網絡的動態傳播過程。結果證明，網絡中時變重連函數的穩定值大，則病毒傳播規模小。時變重連概率函數增長速度快，則病毒傳播速度慢。錶明人們的風險意識高且規避措施全麵時，病毒最終的傳染規模也小，同時，能及早地認識病毒的危害併採取規避措施，有利于對病毒傳播的抑製。
당질병재인군중폭발시，인문대병독전파적풍험의식화규피행위수착인군중감염밀도등인소적변화이작자괄응적조정。침대인군중불단변화적풍험의식화규피행위，제출재 SIS 망락전파모형중，용시변중련개솔함수묘술해변화과정，연구자괄응망락적동태전파과정。결과증명，망락중시변중련함수적은정치대，칙병독전파규모소。시변중련개솔함수증장속도쾌，칙병독전파속도만。표명인문적풍험의식고차규피조시전면시，병독최종적전염규모야소，동시，능급조지인식병독적위해병채취규피조시，유리우대병독전파적억제。
When a disease breaks out in the population, risk awareness and avoidance behavior on virus propagation make the adaptive adjustment as the infection density change in real networks. Considering the changing process of the risk awareness and avoidance behavior on virus propagation, the time-varying rewiring probability is used in the Susceptible-Infected-Susceptible(SIS) network propagation model. The dynamic propagation is focused on in adaptive networks. The results indicate that the faster time-varying rewiring probability increases, the slower virus spreads, and a bigger time-varying rewiring probability stable value results in a smaller propagation size. These findings suggest that in real world, the earlier rewiring strategy is applied, the more effectively it works on the inhibition of virus. The final infection scale decreases as the awareness of virus gets deeper, and avoidance behavior becomes more comprehensive.
