A synthetic step change

A step change in speed HARDWARE ACCELERATION IN FINANCIAL MARKETS A step change in speed

Managing change in general practice: a step by step guide.

B.J 1992;304:231-4 Over the past five years general practitioners have been challenged by proposals from both the government and the Royal College of General Practitioners to fundamentally change the administrative structure and day to day running of general practice.`'Changes range from individual practice based innovations, such as developing structured surveillance for chronic disorders and ...

Estimating the Time of a Step Change in Gamma Regression Profiles Using MLE Approach

Sometimes the quality of a process or product is described by a functional relationship between a response variable and one or more explanatory variables referred to as profile. In most researches in this area the response variable is assumed to be normally distributed; however, occasionally in certain applications, the normality assumption is violated. In these cases the Generalized Linear Mod...

Identifying the time of a step change in AR(1) auto-correlated simple linear profiles

Assuming a first-order auto-regressive model for the auto-correlation structure between observations, in this paper, a transformation method is first employed to eliminate the effect of auto-correlation. Then, a maximum likelihood estimator (MLE) of a step change in the parameters of the transformed model is derived and three separate EWMA control charts are used to monitor the parameters of th...

Defining a step change of aircraft noise in residential areas

Aircraft noise is characterized by intermittent noise events which vary in number and level from day to day, from one season to another, and usually show a gradual increase of the number of flights and a gradual decrease of the LAeq from year to year. Since a real or expected step change in aircraft noise often causes strong change reactions in residential areas, which cannot be predicted by st...