The objective of this work was to generate drift curves from pesticide applications on coffee plants and to compare them with two European drift‐prediction models. The used methodology is based on the ISO 22866 standard. The experimental design was a randomized complete block with ten replicates in a 2x20 split‐plot arrangement. The evaluated factors were: two types of nozzles (hollow cone with...

In lung stereotactic body radiotherapy (SBRT), variability of intrafractional target motion can negate the potential benefits of four-dimensional (4D) treatment planning that aims to account for the dosimetric impacts of organ motion. This study used tumor motion data obtained from CyberKnife SBRT treatments to quantify the reproducibility of probability motion function (pmf) of 37 lung tumors....

. The drift of MCPA downwind of an aerial application was measured using short air sampling intervals in an attempt to estimate “real-time” concentrations. Prior drift studies examined deposition patterns or measured air concentrations downwind of pesticide applications using long sampling intervals (1 to 24 hours). This preliminary study was designed to determine: 1) the Eeasibility of “real-t...

We consider the question of the stability of evolutionary algorithms to gradual changes,or drift, in the target concept. We define an algorithm to be resistant to drift if, forsome inverse polynomial drift rate in the target function, it converges to accuracy 1 − ǫwith polynomial resources, and then stays within that accuracy indefinitely, except withprobability ǫ at any one tim...

Do locomotor aftereffects depend specifically on visual feedback? In 7 experiments, 116 college students were tested, with closed eyes, at stationary running or at walking to a previewed target after adaptation, with closed eyes, to treadmill locomotion. Subjects showed faster inadvertent drift during stationary running and increased distance (overshoot) when walking to a target. Overshoot seem...

In the paper, we mainly study ergodicity of adaptive MCMC algorithms. Assume that under some regular conditions about target distributions, all the MCMC samplers in {Pγ : γ ∈ Y} simultaneously satisfy a group of drift conditions, and have the uniform small set C in the sense of the m-step transition such that each MCMC sampler converges to target at a polynomial rate. We say that the family {Pγ...

On-line learning in domains where the target concept depends on some hidden context poses serious problems. A changing context can induce changes in the target concepts, producing what is known as concept drift. We describe a family of learning algorithms that exibly react to concept drift and can take advantage of situations where contexts reappear. The general approach underlying all these al...

This paper is part of a work program concerning the modeling of object drift in near coastal ocean waters over a several week time period. The final target of this program is to develop methods to forecast the drift of things like containers, lost objects or oil spill over long periods of time in near coastal ocean areas. Such methods would be of interest for services in charge of maritime safe...