Ordering genes on a chromosome is similar to the traveling salesman problem (TSP), but with some exinformation. This extra information prompted us to investigate the genetic algorithms (GA) andâ€¦ (More)

In general, local stability does not imply global stability. We show that this is true even if one only considers population models. We show that a population model is globally stable if and only ifâ€¦ (More)

We consider learning tree patterns from queries extending our preceding work [Amoth, Cull, & Tadepalli, 1998]. The instances in this paper are unordered trees with nodes labeled by constantâ€¦ (More)

Some of the simplest models of population growth are one dimensional nonlinear difference equations. While such models can display wild behavior including chaos, the standard biological models haveâ€¦ (More)

A perfect one-error-correcting code on a graph is a subset of the vertices so that no two vertices in the subset are adjacent and each vertex not in the subset is adjacent to exactly one vertex inâ€¦ (More)

Tree patterns are natural candidates for representing rules and hypotheses in many tasks such as information extraction and symbolic mathematics. A tree pattern is a tree with labeled nodes whereâ€¦ (More)

The Towers of Hanoi is a simple puzzle in which N disks of different sizes are placed on one of three towers. The disks are transferred to another of the three towers by moving one disc at a time,â€¦ (More)