Stanley milgram the harvard professor who in 1967 preformed a series of experiments How many acquaintances would it take to connect two randomly selected individuals in the USA? DISNEYLAND Milgram’ S Answer: IT'S J SMALL WORLD” 5.5(6)
How many acquaintances would it take to connect two randomly selected individuals in the USA? Milgram’s Answer: 5.5(6) Stanley Milgram the Harvard professor who in 1967 preformed a series of experiments:
Milgram's experiment in 1967 How to carry out 1. Who are the initial /start Participants (randomly chosen 2. Participants are told who is the target person 3b. If they do not know the 3a. If they know the target target person on a personal basis person on a personal basis, mail this folder to acquaintance mail this folder directly to who is more likely than you to him(or her) know the target person
Milgram’s experiment in 1967 How to carry out? 1. Who are the initial /start Participants？ （randomly chosen） 2. Participants are told who is the target person！ 3a. If they know the target person on a personal basis, mail this folder directly to him (or her). 3b. If they Do NOT know the target person on a personal basis, mail this folder to acquaintance who is more likely than you to know the target person
具理说现律的 密送车轻人 鸡毛信 Milgrams experiment in 1967 毛信 started from omaha and wichita Targets location: Sharon(Massachusetts); Boston Targets identity: wife of a divinity graduate student: stock broker Links: postcards and mails Supposed chain length: >100 (FBD) OMAHA 42/160 completed chains, MILGILAMS 300 0A CHMN LEYTERX average 5.5(312) ILLUSTRATE L DEGPeES SAUL WLLLD PEJBUEM
Milgram’s experiment in 1967 started from Omaha and Wichita • Targets location: Sharon (Massachusetts); Boston • Targets identity: wife of a divinity graduate student; stock broker • Links: postcards and mails • Supposed chain length: >100 (FBI) • 42/160 completed chains, average 5.5 (3~12)
Question If you are interested in finding such answers. how to design the experiment now?
Question • If you are interested in finding such answers, how to design the experiment now?
A 500th person to the riaht of A Your Friends Friends Friends Only have local information to reach ur Friends Friend the(global)target Your Friends Given the network is You reachable in a definite (not many) steps The shortest path
Only have local information to reach the (global) target! Given the network is reachable in a definite (not many) steps. The shortest path