In this paper we argue that an attractive and potentially very general way of achieving generalized arc consistency (GAC) on a constraint is by using unit propagation (UP) over a C...
Dual Consistency (DC) is a property of Constraint Networks (CNs) which is equivalent, in its unrestricted form, to Path Consistency (PC). The principle is to perform successive sin...
We present Explorative Debugging as a novel debugging paradigm for rule based languages. Explorative Debugging allows truly declarative debugging of rules and is well suited to sup...
Contemporary software systems are composed of many components, which, in general, undergo phased and incremental development. In order to facilitate the corresponding construction ...
Being a successful technique in software practice, Object Orientation (OO) is a hot topic in academic research fields. Among many formalisms, rCOS, a refinement calculus of obje...
Liang Zhao, Xiangpeng Zhao, Quan Long, Zongyan Qiu