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...t meaning for designers. Fig. 1 illustrates the SLN modeling technique. The SLN metamodel adopts the MOF as the basic metamodeling language to describe the core semantic elements in the SLN matamodel =-=[1, 6, 8]-=-. Just as the UseCase model in requirement modeling, the SLN metamodel demarcates the basic boundary of the SLN modeling. The UML profile for SLN describes the syntax of the SLN [2, 10]. The modeling ...

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...A metamodel outlines the abstract syntax of a modeling language. It can be used to specify several specific syntaxes. The UML profile is eligible to define a specific syntax that is widely acceptable =-=[5]-=-. In the MOF metamodeling architecture, each model layer employs the same syntax style to provide a coherent meaning for designers. Fig. 1 illustrates the SLN modeling technique. The SLN metamodel ado...

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... from small and simple into large and rich. The Unified Modeling Language (UML) is a collection of diagram notations for software modeling. Although accurate definition of its semantics is impossible =-=[12]-=-, its syntax is well-known and its meaning is well-understood in software community. Using UML to explain the SLN enables users in the software community to understand the SLN. This paper proposes a S...

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...ociate with the MVC viewers and reply specific requests from the UI module in the run time. The SLN browser adopts visualization technologies such as Degree-Of-Interest tree (DOI) and hyperbolic tree =-=[2, 16]-=-. The following algorithm constructs a tree structure used by DOI and hyperbolic tree layout according to the depth first order. 5. APPLICATION Fig. 6. The architecture of the SLN browser. The SLN mod...

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...LN matamodel [1, 6, 8]. Just as the UseCase model in requirement modeling, the SLN metamodel demarcates the basic boundary of the SLN modeling. The UML profile for SLN describes the syntax of the SLN =-=[2, 10]-=-. The modeling tool implementing the modeling language facilitates the SLN model design. The transformation mechanism from the SLNs to the XML schemata enables the SLN browser to understand the UML pr...

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...t meaning for designers. Fig. 1 illustrates the SLN modeling technique. The SLN metamodel adopts the MOF as the basic metamodeling language to describe the core semantic elements in the SLN matamodel =-=[1, 6, 8]-=-. Just as the UseCase model in requirement modeling, the SLN metamodel demarcates the basic boundary of the SLN modeling. The UML profile for SLN describes the syntax of the SLN [2, 10]. The modeling ...

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...LN matamodel [1, 6, 8]. Just as the UseCase model in requirement modeling, the SLN metamodel demarcates the basic boundary of the SLN modeling. The UML profile for SLN describes the syntax of the SLN =-=[2, 10]-=-. The modeling tool implementing the modeling language facilitates the SLN model design. The transformation mechanism from the SLNs to the XML schemata enables the SLN browser to understand the UML pr...

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... and B⎯β→C in the semantic link set, and there exists a semantic link rule X⎯α→Y, Y⎯β→Z ⇒ X⎯γ→Z (denoted as α⋅β=γ in simple) in the SLNRules, then A ⎯γ→C can be derived out and added to SemanticLinks =-=[20]-=-. Two semantic link networks can be merged into one by common nodes or by adding semantic links between nodes of different networks. The Semantic Link Network can be extended by including richer rules...

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... registered in the server. For large-scale applications, the central resource lists can be distributed onto several servers. Moreover, the SLN servers can be organized in a fully decentralized manner =-=[25]-=-. 15sTechnical Report of Knowledge Grid Research Center, KGRC-2007-03, June, 2007, www.knowledgegrid.net/TR With the upload and download behaviors, the global and local SLNs become richer and richer. ...

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...sion module. The core module consists of a set of semantic nodes, the semantic links between nodes, and the linking rules (SLN Rules). It can be extended by adding more reasoning and mapping features =-=[24]-=-. (2) Compatibility. The SLN metamodel should comply with an existing metamodel specification like the MOF (Meta-Object Facility) to ensure the interoperability between the SLN and the other relevant ...

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...e SLN are its simplicity and the nature of semantic self-organization: any node can link to any semantic relevant node. It supports the implementation of an autonomous and self-organized Semantic Web =-=[19, 22]-=-. Pons applies the semantic link technique to improve Web page prefetching [21, 22]. He proposes a prefetcher utilizing this semantic link information associated with the current Web page’s hyperlink ...

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...tion. The node and the semantic link information can be edited by users. Nodes can be labeled with concepts in domain ontology. If different ontologies are used, mapping between ontologies are needed =-=[15]-=-. After the definition of the SLNs, users can upload them onto a SLN server to share with others. Fig.9. The SLN resource sharing infrastructure. 16sTechnical Report of Knowledge Grid Research Center,...

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...e SLN are its simplicity and the nature of semantic self-organization: any node can link to any semantic relevant node. It supports the implementation of an autonomous and self-organized Semantic Web =-=[19, 22]-=-. Pons applies the semantic link technique to improve Web page prefetching [21, 22]. He proposes a prefetcher utilizing this semantic link information associated with the current Web page’s hyperlink ...

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... link to any semantic relevant node. It supports the implementation of an autonomous and self-organized Semantic Web [19, 22]. Pons applies the semantic link technique to improve Web page prefetching =-=[21, 22]-=-. He proposes a prefetcher utilizing this semantic link information associated with the current Web page’s hyperlink set to predict which Web objects to prefetch during the limited view time interval ...

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...ity to support relation reasoning because it does not contain any semantics. The Semantic Web is to upgrade the Web to support intelligent applications by establishing machineunderstandable semantics =-=[3]-=-. Much research has been done toward this goal by developing semantic richer markup languages and domain ontologies. XML is to reflect the structural information of documents (www.w3.org/XML). Resourc...

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...t meaning for designers. Fig. 1 illustrates the SLN modeling technique. The SLN metamodel adopts the MOF as the basic metamodeling language to describe the core semantic elements in the SLN matamodel =-=[1, 6, 8]-=-. Just as the UseCase model in requirement modeling, the SLN metamodel demarcates the basic boundary of the SLN modeling. The UML profile for SLN describes the syntax of the SLN [2, 10]. The modeling ...

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...ing some particular modeling problem and facilitating modeling constructs in a domain. The UML profile for SLN employs stereotype and tagged value to annotate SLN semantics in the SLN modeling syntax =-=[7, 14]-=-. Table 1 indicates the mapping between SLN features, UML features, and UML Profile features. Table 1. The mapping between SLN features, UML profile features, and UML Profile features. SLN UML UML Pro...

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...dels like the SLN metamodel, while the latter can be used for a “lightweight” extension by attaching stereotypes or tags to UML model structure and introducing semantics for specific modeling purpose =-=[17]-=-. A metamodel outlines the abstract syntax of a modeling language. It can be used to specify several specific syntaxes. The UML profile is eligible to define a specific syntax that is widely acceptabl...

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...rrent efforts towards the Semantic Web. Can we develop a Semantic Web by inheriting the successful features of the Web? Research on the Semantic Link Network (SLN) model is increasing in recent years =-=[18, 19-24]-=-. The model is the extension of the current hyperlink Web by attaching semantics to hyperlinks. It is a simple way to realize the Semantic Web by establishing a semantic linking overlay on Web resourc...