We present a new CuSum chart for monitoring shifts in the mean of autocorrelated data. The monitoring statistic is the plain cumulative sum of differences between the observations and the target value, and the control limits are a function of the asymptotic variance constant and target in-control average run length. Our method uses a variety of non-parametric techniques that are popular in the ...

In this paper we present some new solutions for design space exploration of parameterized systems. The approaches use multi-objective optimisation techniques based on the concept of Pareto-optimality to determine the power/performance trade-off front for a highly parametric system-on-a-chip for digital camera applications. The approaches used are purely heuristic, genetic algorithm-based and a ...

A new contact bond model based on the Mohr-Coulomb failure criterion has been implemented in PFC2D to reproduce the behaviour of frictional cohesive (c, φ) geomaterials. According to this model, the bond strength can be clearly divided into two distinct micromechanical contributions: an intergranular friction angle and a cohesive bond force. A parametric analysis has been run to validate the pr...

In a language with non-parametric or ad-hoc polymorphism, it is possible to determine the identity of a type variable at run time. With this facility, we can write a function to convert a term from one abstract type to another, if the two hidden types are identical. However, the naive implementation of this function requires that the term be destructed and rebuilt. In this paper, we show how to...

We describe our experiments for the shot boundary detection, high-level feature extraction and search. In the shot boundary detection task, we employ our proven method based on the calculation of distances between colour histograms of frames over a range of timescales. For the search task, we tested a different system. This year, content based search is complemented with a new relevance feedbac...

This paper investigates how managerial capacity aspects influence efficiency of dairy farms in Sweden. Based on non-parametric methods, Tobit and logistic regressions, several managerial capacity aspects are found to influence long and short run input efficiency scores, but to influence output efficiency less. Examples of important aspects are: internal locus of control, positive profitability ...

Linear-time convex hull algorithms are known to exist for polygons and planar objects bounded by piecewise algebraic curves. Most of the existing algorithms laboriously trace out the so-called “pockets” formed by the concave portions of an object’s boundary. Objects bounded by general parametric curves have been excluded from the previous study partly because the nature of computation is seemin...

We examine a new general class of hazard rate models for duration data, containing parametric and nonparametric component. Both can be mix time effect possibly time-dependent covariate effects. A number well-known are special cases. In counting process framework, profile likelihood estimator is developed the component model shown to asymptotically normal efficient. Finite sample properties inve...

The virtual class 15] construct was rst introduced in the language Beta to provide added expressiveness when used with inheritance. Unfortunately, the virtual class construct in Beta is not statically type-safe. In this paper we show how a generalization of the semantics of object-oriented languages with a MyType construct leads to a variant of virtual classes which needs no run-time checks. Th...

We consider lossy counter machines, i.e. counter machines with counters whose contents can spontaneously decrease at any time. They are not Turing-powerful, since reachability is decidable for them, but they still have interesting undecidable properties: For a lossy counter machine it is undecidable if there exists an initial connguration s.t. there is an innnite run. Lossy counter machines can...