Jack knifing for semivariogram validation

Semivariogram Modeling

A Semivariogram is one of the significant functions to indicate spatial correlation in observations measured at sample locations. It is commonly represented as a graph that shows the difference in measure with distance between all pairs of sampled locations. Such a graph is helpful to build a mathematical model that describes the variability of the measure with location. Modeling of relationshi...

Model Averaging for Semivariogram Model Parameters

Hybrid Estimation of Semivariogram Parameters1

Two widely used methods of semivariogram estimation are weighted least squares estimation and maximum likelihood estimation. The former have certain computational advantages, whereas the latter are more statistically efficient. We introduce and study a “hybrid” semivariogram estimation procedure that combines weighted least squares estimation of the range parameter with maximum likelihood estim...

JACK - A Tool for Validation of Security and Behaviour of Java Applications

We describe the main features of JACK (Java Applet Correctness Kit), a tool for the validation of Java applications, annotated with JML specifications. JACK has been especially designed to improve the quality of trusted personal device applications. JACK is fully integrated with the IDE Eclipse, and provides an easily accessible user interface. In particular, it allows to inspect the generated ...

Dextrous Haptic Interface for Jack

This paper presents a simulation system which integrates a realtime hand sensing and force-feedback interface (the Rutgers Master II) with a full body modeling software (JACK ). The RM– II system and the Polhemus Fastrak 3D magnetic tracker were initially integrated with “JACK" full-body simulation software. The system performance (graphics update rates, sensor reading updates) is evaluated on ...