New model description standards to facilitate multi-scale modeling

Scale-space filtering: A new approach to multi-scale description

The extrema in a signal and its first few derivatives provide a useful general purpose qualitative description for many kinds of signals. A fundamental problem in computing such descriptions is scale: a derivative must be taken over some neighborhood, but there is seldom a principled basis for choosing its size. Scale-space filtering is a method that describes signals qualitatively, managing th...

Multi-scale process model description by generalized hierarchical CPN models

In this paper we show how to extend coloured Petri nets (CPNs) with a hierarchy concept. The basic idea behind using hierarchical CPNs is to allow the modeller to construct a large model by using a number of small CPNs which are related to each other in a well-defined way. We discuss seven different ways to relate submodels to each other, and they are illustrated by examples. The hierarchy cons...

Adapting Standards to Facilitate the Transition from Situational Model to Reference Model

Reference Models comprise information on best or common practices for reuse. However, they commonly originate from individual projects. Yet, project models are usually situational and often inconsistent due to a lack of expertise of the employees or the sheer complexity of the specification. Consequently, the transfer of these models into universal reference models is problematic at best. Stand...

Towards Model-Based Brain Imaging with Multi-Scale Modeling

Design of a Software Framework Based on Geospatial Standards to Facilitate Environmental Modeling Workflows

Environmental modelling workflows are often tedious due to heterogeneity of data sources, types and formats. This paper discusses how a software framework based on Open Geospatial Consortium (OGC) standards may facilitate the workflow steps and improve their flexibility by supporting data access, processing, and decision-making. The software framework is designed based on OGC standards, which c...