Lateral diffusion

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Lateral diffusion is the process whereby information can be spread from one node in a social network to another, often in a selective way, and can rapidly traverse an entire population, but preferentially to those nodes likely to be interested, or needing to know.

This is similar to how rumours, gossip, jokes, diseases etc. rapidly spread. But note that each sender-on can be selective: a sender wouldn't necessarily tell a superior a joke he might not approve of. Senders also tend to pass on information to those who they know from personal experience would be interested or need to know.

In this way it has been shown that typically no more than 6 intermediaries are likely to link the most extreme chain of lateral diffusion - see six degrees of separation even worldwide.

[edit] See also

• Lateral communication
• Information Routing Group
• Tacit knowledge

[edit] References

1a. Many of the references listed below are on: http://lateralaccessnetworks.wikispaces.com/

1. "Beyond Mass Media" Brian Martin. Science, Technology and Society University of Wollongong, NSW 2522, Australia. General discussion of the IRG concept(http://www.uow.edu.au/arts/sts/bmartin/pubs/95metro.html).

2. The Power Of Open Participatory Media And Why Mass Media Must Be Abandoned. Brian Martin, March 20, 2006. General discussion of the IRG concept http://www.masternewmedia.org/news/2006/03/20/the_power_of_open_participatory.htm

3. The IRG Solution - Hierarchical Incompetence and how to overcome it. David Andrews. Souvenir Press, London, 1984. Pages 200 - 220. ISBN 0-285-62662-0. Detailed description of the proposal.

4. The Hidden Manager Communication technology and information networks in business organizations. Taylor Graham Cambridge / Los Angeles,1986. David Andrews and John Kent. Much tighter description of IRG concept and its application to business management. ISBN 0-947568-15-8, 198 6 http://www.taylorgraham.com/books/hidmancon.html

4a. Mogens Niss Professor of Mathematics and Mathematics Education IMFUFA, Roskilde University, Denmark "Om folkeskolelaereruddanelsen i det vigtige fag matematik" in Peter Bollerslev (ed.): "Den ny matematik i Danmark - en essaysamling", Copenhagen, Gyldendal, 1979, pp107-122. The relevance paradox is defined on p. 111.

5. Niss, M. (1994) Mathematics in Society. In Biehler, R., Scholz, R. W., Straesser, R., Winkelmann, B. Eds. (1994) The Didactics of Mathematics as a Scientific Discipline. Dordrecht: Kluwer, 367-378. Relevance paradox

6. Energy Research Group, Open University. Communication Within the Agriculture, Water, Waste and Energy Industries. Discussed examples of how the industries mentioned can be integrated to a greater or lesser degree, leading to lower pollution and energy use. Discussed the need for IRGs and how they might be organized. Emphasizes problem is lack of co-ordination and lateral communication between organisations. Describes interlock research in detail, the relevance paradox and the Bilharzia/schistosomiasis issue, central media, lateral diffusion, tacit knowledge, and Lateral Access Networks, later renamed Information Routing Groups, development of private languages as a barrier to inter communication, also describes how computers can be used to speed up lateral communication, and lateral referral . DC Andrews. ERG 033. Open University, Walton Hall, Milton Keynes, England 1980.

6. "The Importance of Knowing the Right People" (Article based on ERG 033 on Lateral Access Networks - the forerunner of Information Routing Groups). Printed in the Guardian Newspaper, London (The National Newspaper) March 20th 1980. Discussed Bilharzia / schistosomiasis relevance paradox.

8. Energy Research Group, Open University . Information Routing Groups. DC Andrews. ERG 037. Generalisation of ERG 033, advocated development of software and automatic phone answering modem to link up private PCs effectively creating an Internet. Open University, Walton Hall, Milton Keynes, England 1980. David Andrews

8a Library Association Record to a seminar run jointly by IEE and the LA on 'Biblionic man', held at the IEE on 26 November 1980. Covered same ground as ERG 033 and ERG 037.

8b. Andrews, D. (1986) Information routeing groups – Towards the global superbrain: or how to find out what you need to know rather than what you think you need to know, Journal of Information Technology, 1, 1, Feb, 22-35. details of lateral referral, diffusion.

9. Yewlett, J . L . Town Planning, Wales, Institute. of Science & Technology . "Networks : Developments in theory & practice" . The paper reviews developments in the U .S .A. & U .K . in recent years, progressing beyond network analysis to explore the structure & use of networks. The paper seeks to address questions of how to construct multi-actor policy structures, & build networks for particular purposes. Contributory concepts explored included the 'Reticulist', the 'Leader/Co- ordinator', the 'Segmented Polycephalous Network' & the 'Information Routing Group' in CONNECTIONS Sunbelt Social Network Conference World Congress of Sociology American Sociological Association VOLUME IX NUMBERS 2-3 Winter, 1986 http://www.insna.org/Connections-Web/Volume09/connections1986_IX-2-3.pdf

10. ( see Charnock, Anne (1980) Taking Bilharziasis out of the irrigation equation. New Civil Engineer, 7 August) Bilharzia caused by poor civil engineering design.

11. Social Networks Meet News Aggregation And Filtering: Information Routing Groups http://www.masternewmedia.org/news/2006/10/02/social_networks_meet_news_aggregation.htm