General metrics and contracting operations

Metrics for effort estimation on contracting maintenance service

A software vendor sometimes contracts the maintenance of a software product that other software vendors gave up maintaining due to costs etc. In such case, the vendor must estimate costs of maintenance before contracting. However, due to lack of an objective measure, an expert estimates the cost on the basis of his/her experience. We will propose some metrics for estimating maintenance effort. ...

Operations of General Surgery

on general relatively isotropic mean landsberg metrics

the general relatively isotropic mean landsberg metrics contain the general relativelyisotropic landsberg metrics. a class of finsler metrics is given, in which the mentioned two conceptsare equivalent. in this paper, an interpretation of general relatively isotropic mean landsberg metrics isfound by using c-conformal transformations. some necessary conditions for a general relativelyisotropic ...

Subtree Transfer Operations and their Induced Metrics on Evolutionary Trees

Leaf-labelled trees are widely used to describe evolutionary relationships, particularly in biology. In this setting, extant species label the leaves of the tree, while the internal vertices correspond to ancestral species. Various techniques exist for reconstructing these evolutionary trees from data, and an important problem is to determine how “far apart” two such reconstructed trees are fro...

Real-Time Safety Metrics and Risk-Based Operations

The hydrocarbon and chemical process industries have made enormous efforts in the past 15-20 years to improve safety performance. This has been driven by major accidents in Europe, the USA and elsewhere (e.g. vapor cloud explosions at Flixborough, Pasadena, and Kuwait; a AN explosion at Toulouse, toxic releases at Bhopal, Seveso, Texas City; environmental accidents at Sandoz and Alaska; and maj...