For the problem of sequential detection of changes, we adopt the probability maximizing approach in place of the classical minimization of the average detection delay and propose modified versions of the Shiryaev, Lorden, and Pollak performance measures. For these alternative formulations, we demonstrate that the optimum sequential detection scheme is the simple Shewhart rule. Interestingly, we...

This paper will examine two ‘ecologies of thought’, which encompass architectural theory, history, pedagogy, and practice. A lineage of ‘scientific’ diagramming originates from scientific management and the Bauhaus-inspired curriculum introduced to Harvard by Walter Gropius; it incorporates diagrams into a problem-solving methodology, and is exemplified by the ‘bubble diagram’. This scientific ...

The formal structure of evolutionary theory is based upon the dynamics of (populations of) “individuals.” It therefore assumes the entities whose existence it is supposed to explain. At the heart of the existence problem is determining how biological organizations arise in ontogeny and in phylogeny. The research theme we called Algorithmic Chemistry (AlChemy) was an attempt at constructing a fo...

Ajay Kalra • Mengze Shi • Kannan Srinivasan Graduate School of Industrial Administration, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 Rotman School of Management, University of Toronto, Toronto, Ontario, Canada M5S 3G4 Graduate School of Industrial Administration, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 [email protected] • [email protected] • kannans@a...

To the Editor: On July 27, 2011, I attended the casing of the colors of Walter Reed Army Medical Center in Washington, DC, and on August 27, the last patient was transferred from that closing facility to the National Naval Medical Center in Bethesda, Maryland. The new, integrated facility became known as the Walter Reed National Military Medical Center on September 15.1 As one who spent about o...