复旦大学：《网络科学导论 Introduction to Network Science》教学课件_11- Spreading on networks

Network science An English introductory course for undergraduate students Lecturer: Dr Cong Li eE a Fudan University Adaptive Networks and Control lab dL

Network Science Lecturer: Dr. Cong LI EE @ Fudan University —— An English introductory course for undergraduate students Adaptive Networks and Control Lab

Dynamic processes Spreading on networks What can spread on networks? virus t c马 gossip message email rumor

Dynamic processes ： Spreading on networks virus email message gossip rumor What can spread on networks?

Alarm: the Swine Flu(A-HIND: 人感染猪流感的途径和症状 2009/4/13 1 dead(Mexico) 被猪流感病毒 染猪流感 接履受感染的 唇染的环境 的人接触 一种由A型猪流盛病引起的 2009/5/2177 dead(Mexico 猪呼吸系统疾病,通常情况下 人很少感染,近年出现人感染 USA) 猪流魏病例 6 28 cases confirmed over 外交部提醒:中国公民注意预防墨西哥的猪流感疫 16 countries 数至4月25日在墨西哥32个州中,15个州未发现感染猪流感病例 3000+ cases over 30+ 王者会继发肺 炎和呼吸衰鲳 countries D圣路易斯波多西州 甚至死亡 P墨西哥州一 各国猪流感疫情 D西哥城 疫情集中地区

Alarm: the Swine Flu (A-H1N1)! 2009/4/13 1 dead (Mexico) …… 2009/5/2 177 dead (Mexico, USA) 628 cases confirmed over 16 countries, 3000+ cases over 30+ countries

黑务斷网易》新闻中心》热点新闻》正文 墨西哥疫区航班抵达上海200余名乘客顺利出关 2009-04-301154:03来源:中国新闻网(北京)跟贴1926条手机看新闻 2009/5/1 Hong Kong, 1 case confirmed, took the flight from Mexico to Shanghai then hK Isolate suspecting cases 網易闻网易>新词中心》甲型江流感来>正文 各国猪流感疫情 中国暂停接受墨西哥飞上海航班 2009-05-0204:52:48来源:新华网跟贴2733条手机看新闻 核心提示:中国政府决定,自5月2日起暂停接受墨西哥航空 班。何时恢复要视疫情的控制情况而定。对原定乘坐5月3日墨西哥堿 旅客,中国政府考虑派包机接回

• 2009/5/1 Hong Kong, 1 case confirmed, took the flight from Mexico to Shanghai then HK. • Isolate suspecting cases……

全球甲型HN1流感疫情 2009年4月24日 点密度 愿1点=1例 里

How do sars and alds spread on the human society? 上“oh June 20. 2003 Modeling the sars epidemic Transmission Dynamics and Control of sars

How do SARS and AIDS spread on the human society? , June 20, 2003: Modeling the SARS Epidemic Transmission Dynamics and Control of SARS

Social relationships S NAH 9L7 · Physical contacts e. k A l 9分 大(9 J9 79y ALf( 厶

• Social relationships • Physical contacts

Did you have an experience of being infected b y some diseases?

Did you have an experience of being infected by some diseases?

Did your computers have some computer viruses V experiences of being infected b 88 websites infected. 90% users infected 50 billion USd per year for defense

Did your computers have experiences of being infected by some computer viruses? 88% websites infected, 90% users infected…….. 50 billion USD per year for defense

Viruses prevalence on the Internet Have your computers recently been attacked by some viruses Internet The so-big worm (Aug 11, 2003) 星 The blaster worm Domain 2 Domain 1 The Slammer virus,...... a virus can affect the whole Internet in 30 seconds to minutes, if without any countermeasures

Viruses prevalence on the Internet • Have your computers recently been attacked by some viruses? The So-big worm (Aug. 11, 2003), The Blaster worm , The Slammer virus,…… • A virus can affect the whole Internet in 30 seconds to minutes, if without any countermeasures