Metamodelling plays an important role in model-driven engineering as it can be used to define domain-specific modelling languages. During the modelling phase, software designers encode domain knowledge into models which may include both structural and behavioural aspects of a system. In this paper we propose a diagrammatic approach to aid the software designer to complete partial models and the...

With the proliferation of domain-specific languages, the generalization of OO patterns is a natural demand. Concepts and tools supporting pattern specification and execution for arbitrary domain-specific languages facilitate to meet these requirements. Our previous work introduced the Active Model Pattern Infrastructure and possible realizations for its static aspect. In this paper, we contribu...

The use of several view models to specify a complex system is a common practice to provide the most appropriate abstractions to model its diverse concerns. When several view models are used to specify a system, it is necessary to compose them to generate the application. When the view models are expressed in different Domain Specific Modeling Languages a problem arises because a heterogeneous c...

Automatic problematic situation recognition (PSR) is important for an online conversational system to constantly improve its performance. A PSR module is responsible of automatically identifying users’ un-satisfactions and then sending feedbacks to conversation managers. In this paper, we collect dialogues from a Chinese online chatbot, annotate the problematic situations and propose a framewor...

While agent-based models are widely used for the simulation of human-natural systems, it remains challenging for scientists to specify their models in a manner in which they can be understood and used by others. In this research project, we survey existing solutions that have emerged to cope with models specification issues. We then propose another approach: a domain specific modeling language ...

Alternative splicing patterns are regulated by factors that direct the activity of the spliceosome. In a recent issue of Molecular Cell, Warzecha et al. (2009) identify two new splicing regulators whose epithelial-specific expression induces several tissue-specific splicing events.

One of the factors which are usually difficult to be measured in mills is the grindability and distribution of feed under real situation and in a short time. In the condition of achieving a fast and convenient way to determine these parameters, the proper relationship between energy, hardness and particle size distribution can be obtained. Feed hardness is one of the most important factors in g...

A specific pathogen free (SPF) barrier colony of breeding marmosets (Callithrix jacchus) was established at the Barshop Institute for Longevity and Aging Studies. Rodent and other animal models maintained as SPF barrier colonies have demonstrated improved health and lengthened lifespans enhancing the quality and repeatability of aging research. The marmosets were screened for two viruses and se...