Ontology as an important representation model of semantic web has valuable application. A new ontology model on the basis of Computer Graphics (CG) knowledge is proposed, called CG ontology model. The protégé is used to build this ontology model conveniently. The Jena API is applied to store CG owl documents in MySQL, set inference rule and achieve search queries on the ontology database. Final...

The Langrangian of QCD is known to have a U(3)L SU(3)tt chiral symmetry when the three lightest quark masses are set to zero. This symmetry is believed to be spontaneously broken to its vector U(3)L+R subgroup via nonvanishing quark vacuum expectation values (qq)0. The nonet of (pseudoscalar) Goldstone bosons associated with the spontaneous breaking of the symmetry can be conveniently parametri...

With the move towards UML becoming a family of modelling languages, there is a need to view the Object Constraint Language in the same light. The aim of this paper is to identify a meta-modelling facility that encompasses the specification of the semantics of a family of object constraint languages. This facility defines a common set of model concepts, semantic domain concepts and semantic mapp...

In the previous lecture the detection of deterministic signals was dealt with. In this lecture, the focus will be on deciding between signals that are known except for a set of unknown random parameters. For this situation the hypothesis testing problem can be conveniently written as, (1) where Θ is an unknown parameter taking values from a parameter set Λ. Density of Θ is ω j under the hypothe...