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Re: noise in IEN

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Thu, 31 Oct 2002 12:19:34 -0500

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 ```***** To join INSNA, visit http://www.sfu.ca/~insna/ *****    If you look at the small world research, Milgram (20-30% will pass on a high-priority message, depending on race and other demographics) Russ Bernard and Nan Lin (to high status individuals), Keith David (11-20% will pass on a message to 3.3-6.9 people depending on the topic) you can get the empiricial research for transitivity. The precise model for the question is         Hn = L^n(Ho)         Ho = 1.0         L =1-a (fidelity is less than perfect by definition from Information Theory         a = dH/dT or the slope of the fidelity over time         therefore H--> 0.0, as n--> infinity The precise values of course depend on a number of demographic and message factors. -----Original Message----- From: Social Networks Discussion Forum [mailto:[log in to unmask]]On Behalf Of Valdis Sent: Thursday, October 31, 2002 11:35 AM To: [log in to unmask] Subject: Re: noise in IEN ***** To join INSNA, visit http://www.sfu.ca/~insna/ ***** Interesting question... I remember discussing this in my Org Comm classes [Prof. Vince Farace]. For human networks the numbers 50% through 80% were used -- for every re-transmission of a message only 50-80% of the original content is retained. Of course one re-transmission may retain 90% while the next one may retain only 20% depending on the particular node/link in the path. For A-->B-->C-->D ... at 80%: D only gets about 1/2 of the original content at 50%: D only gets 1/8 of the original content! And what about multiple paths from A to D that distort the original message differently? Makes 6 degree of separation quite a large world, eh? Valdis P.S. With computers/routers as nodes this is usually not a problem -- most of the transmission protocols have built-in error checking that makes sure what is being received is what was originally sent. Marko Pahor wrote: > > ***** To join INSNA, visit http://www.sfu.ca/~insna/ ***** > > Dear SocNet-ers, > > I have a question. I'm trying to think of a network of contacts that is > not an actual information exchange network in terms of a such. But I'm > afraid that I'll have a lot of noise. By noise I mean that when A gets > information from B and B gets information from C (A and C are not > connected), the information A gets from C (through B) will not be > correct. Think for example of gossip. Someone cuts his finger and after > a couple of steps the story will be that he cut off his hand - this is > what I mean by noise. > > Does anyone know about some research on noise in the information > exchange network? Maybe it's called differently, as I couldn't get > anything under this search (I got some information exchange network > concerning noise, noise emitters and stuff like that). > > Thank you for your help. > > Marko Pahor > > _____________________________________________________________________ > SOCNET is a service of INSNA, the professional association for social > network researchers (http://www.sfu.ca/~insna/). To unsubscribe, send > an email message to [log in to unmask] containing the line > UNSUBSCRIBE SOCNET in the body of the message. _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.sfu.ca/~insna/). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message. _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.sfu.ca/~insna/). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.```