In a model assessment framework different quality aspects can be examined. In our approach we consider consistency and perceived semantic quality. The former can be supported by constraints and the later by queries. Consistency can be checked automatically, while for the semantic quality the human judgement is necessary. For constraint and query definitions the utilisation of a query language w...

Weighted Constraint Satisfaction Problems (WCSP) are used to model and to solve some constraint optimization problems. WCSPs are often solved by complete or partial tree search strategies combined with filtering. For these methods, variable ordering heuristic (MinDom/FutDeg) and value ordering heuristic (MinAC) are considered to be the most efficient ones. In this paper, we propose a new value ...

Constraints are tightly coupled with data validation and data quality. The author investigates in this master thesis to what extent constraints can be used to build a data quality management framework that can be used by an application developer to control the data quality of an information system. The conceptual background regarding the definition of data quality and its multidimensional conce...

In this paper, a displacement-constrained volume-minimizing topology optimization model is present for two-dimensional continuum problems. The new model is a generalization of the displacement-constrained volume-minimizing model developed by Yi and Sui [1] in which the displacement is constrained in the loading point. In the original model the displacement constraint was formulated as an equali...

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