(J.I.) Porter Ed. Constructions of the Classical Body. Ann Arbor: U. of Michigan P., 2001. Pp. viii + 397, illus. £42.50. 0472087797. - (L.) Brisson Sexual Ambivalence. Androgyny and Hermaphroditism in Graeco-Roman Antiquity, trans, from the French by Janet Lloyd. Berkeley and Los Angeles: U. of California P., 2002. Pp. 195. $29.95. 0520223918.

2004 ◽  
Vol 124 ◽  
pp. 204-205
Author(s):  
Ian Ruffell
Author(s):  
Kenneth De Jong

I continue to be surprised and pleased by the dramatic growth of interest in and applications of genetic algorithms (GAs) in recent years. This growth, in turn, has placed a certain amount of healthy "stress" on the field as current understanding and traditional approaches are stretched to the limit by challenging new problems and new areas of application. At the same time, other forms of evolutionary computation such as evolution strategies [50] and evolutionary programming [22], continue to mature and provide alternative views on how the process of evolution might be captured in an efficient and useful computational framework. I don't think there can be much disagreement about the fact that Holland's initial ideas for adaptive system design have played a fundamental role in the progress we have made in the past thirty years [23, 46]. So, an occasion like this is an opportunity to reflect on where the field is now, how it got there, and where it is headed. In the following sections, I will attempt to summarize the progress that has been made, and to identify critical issues that need to be addressed for continued progress in the field. The widespread availability of inexpensive digital computers in the 1960s gave rise to their increased use as a modeling and simulation tool by the scientific community. Several groups around the world including Rechenberg and Schwefel at the Technical University of Berlin [49], Fogel et al. at the University of California at Los Angeles [22], and Holland at the University of Michigan in Ann Arbor [35] were captivated by the potential of taking early simulation models of evolution a step further and harnessing these evolutionary processes in computational forms that could be used for complex computer-based problem solving. In Holland's case, the motivation was the design and implementation of robust adaptive systems, capable of dealing with an uncertain and changing environment. His view emphasized the need for systems which self-adapt over time as a function of feedback obtained from interacting with the environment in which they operate. This led to an initial family of "reproductive plans" which formed the basis for what we call "simple genetic algorithms" today, as outlined in figure 1.


Urban History ◽  
2009 ◽  
Vol 36 (02) ◽  
pp. 195-201 ◽  
Author(s):  
JANICE L. REIFF ◽  
PHILIP J. ETHINGTON

The idea for this special issue, exploring the history of cities and urbanism within the emerging transnational paradigm, originated in a discussion among the members of the North American Editorial Board ofUrban Historyabout what it means for cities to be global. Veering in many directions, spanning multiple centuries and stretching into much of the world, the conversation touched on the movement of people and ideas, the relationship of urban areas with their hinterlands and with each other, the importance of given technologies and industries for particular forms of urban development, the critical role of politics – at all levels – in that development and the ongoing and evolving role of global capital on those cities. Using the global Internet, members of the North American Editorial Board located in Montreal (Michèle Dagenais), Rochester (Victoria Wolcott), Irvine (Jeffrey Wasserstrom), Philadelphia (Lynn Hollen Lees), Miami (Robin Bachin), Mexico City (Hira de Gortari Rabiela), Hamilton (Richard Harris), Los Angeles (Philip Ethington and Janice Reiff), Amherst (Max Page) and Ann Arbor (Matthew Lassiter) generated a plan to issue a global call for papers for the IXth International Conference of the European Association for Urban History in Lyon, France in August of 2008. Nine scholars from Canada, the United States, France and Mexico pre-circulated their papers for a special bilingual double-long session, co-chaired by Michèle Dagenais and Phil Ethington.


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