WHERE DO PITCHER-LEAFED ASH TREES GROW?

Where Do We Grow From Here?

Conditioned Galton–Watson trees do not grow

A conditioned Galton–Watson tree is a random rooted tree that is (or has the same distribution as) the family tree of a Galton–Watson process with some given offspring distribution, conditioned on the total number of vertices. We let ξ be a random variable with the given offspring distribution; i.e., the number of offspring of each individual in the Galton–Watson process is a copy of ξ. We let ...

Universal Grammar and Chaos/Complexity Theory: Where Do They Meet And Where Do They Cross?

  Abstract The present study begins by sketching "Chaos/Complexity Theory" (C/CT) and its applica-tion to the nature of language and language acquisition. Then, the theory of "Universal Grammar" (UG) is explicated with an eye to C/CT. Firstly, it is revealed that CCT may or may not be allied with a theory of language acquisition that takes UG as the initial state of language acquisition for ...

Where Do Se-trees Perform? (part I)

As a classiier, a Set Enumeration (SE) tree can be viewed as a generalization of decision trees. We empirically characterize domains in which SE-trees are particularly advantageous relative to decision trees. Speciically, we show that: 1. SE-trees excel in domains in which relatively few examples are available; and 2. SE-trees excel in noisy domains. In noisy domains, we discover that SE-trees ...

Growing Trees Where Trees Grow Best: Short-term Research Sheds Light on Long-term Productivity

In 1999, the Fall River Long-Term Site Productivity study began in coastal Washington to investigate how intensive management practices affect soil processes and forest productivity. By comparing conventional harvests to more intensive wood removal treatments, researchers are answering long-standing questions about how residual organic matter influences future growth. Also, by using herbicides ...