The problem of predicting the rth ordered observation Xr in a sample of n from an exponential distribution, based on the observed values of the first k ordered observations from the sample (k < r ≤ n) ...

In this paper we consider optimal stopping problems for a general class of reward functions under matrix-exponential jump-diffusion processes. Given an American call-type reward function in this class ...

For example, although deforestation is still happening on a worrying scale, it was much worse for most of the 20th century — and in many rich countries, the forests are returning.

A major principle of Kurzweil's controversial idea is based on exponential growth in technology. Computers are getting more powerful and cheaper, for example, and doing so at an ever-increasing rate.