***** To join INSNA, visit http://www.insna.org ***** Scaling Theory For Information Networks , Interface Excerpt: Networks distribute energy, materials and information to the components of a variety of natural and human-engineered systems, including organisms, brains, the Internet and microprocessors. Distribution networks enable the integrated and coordinated functioning of these systems, and they also constrain their design. The similar hierarchical branching networks observed in organisms (...). Metabolic scaling theory (MST) shows that the rate at which networks deliver energy to an organism is proportional to its mass raised to the 3/4 power. We show that computational systems are also characterized by nonlinear network scaling and use MST principles to characterize how information networks scale. Scaling Theory For Information Networks, M. E. Moses , S. Forrest , A. L. Davis , M. A. Lodder , J. H. Brown, 2008/05/09, DOI: 10.1098/rsif.2008.0091, Interface http://journals.royalsociety.org/content/c7v0v823m44663t6/?p=2c60606a766846d7af4da7554a 1f99ff&pi=0 ------------------------------- Concept and Definition of Complexity , arXiv Abstract: The term complexity is used informally both as a quality and as a quantity. As a quality, complexity has something to do with our ability to understand a system or object -- we understand simple systems, but not complex ones. On another level, complexity is used as a quantity, when we talk about something being more complicated than another. In this chapter, we explore the formalisation of both meanings of complexity, which happened during the latter half of the twentieth century. *  Concept and Definition of Complexity, Russell K. Standish, 2008/05/06, DOI: 0805.0685, arXiv  http://uk.arXiv.org/abs/0805.0685 Barry Wellman _______________________________________________________________________ S.D. Clark Professor of Sociology, FRSC NetLab Director Department of Sociology University of Toronto 725 Spadina Avenue, Room 388 Toronto Canada M5S 2J4 http://www.chass.utoronto.ca/~wellman fax:+1-416-978-3963 Updating history: http://chass.utoronto.ca/oldnew/cybertimes.php Elvis wouldn't be singing "Return to Sender" these days **** PLEASE NOTE NEW ADDRESS AND FAX NUMBER **** _______________________________________________________________________ _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.