[Draft] Management of Conversation-Oriented Languages for Semantic Web Services through Marked Petri Nets

This draft paper is written as part of a master course in Semantic Web, collecting key issues around composition of semantic web services, from the point of view of the representation of formal execution semantics and conceptual models based on marked Petri nets.

Special thanks to José Emilio Labra Gayo, and Juan Miguel Gómez Berbis for their support.

Abstract

This paper reviews the needs of a collaborative web environment to model visual interactive marked Petri nets, focusing on the issues around the definition of semantic web services interaction languages and modeling of instance conversations derived from them. So that, we start describing the traditional requirements for those languages and discussing the background of graph visualization and interaction concerns. Once reviewed all key issues among those broad areas we present our suggested approach, describing briefly a proof of concept prototype and introducing our future work around graph structured semantic information related with conversation-oriented languages for semantic web services composition and mediation.

Full paper

[PDF] Management of Conversation-Oriented Languages for Semantic Web Services through Marked Petri Nets

[Draft] Visualization, Navigation and Edition of Graph Structured Semantic Information

This draft paper is written as part of a master course in Semantic Web, collecting key issues around graph visualization and interaction, from the point of view of the representation of semantic information based on RDF and OWL.

Special thanks to José Emilio Labra Gayo for such great references, like the graph survey by Herman et al. and the article by M.C. Schraefel and A. Karger.

Abstract

This paper focuses on the concepts related to the visualization, navigation and edition of semantic data which can be represented in graph structured formats, widely used in the Semantic Web; like RDF and other extensions as RDFS or OWL. First of all, a background introduction presents concepts like size, planarity, predictability and time complexity related to graph visualization. Later on we offer an overview of available layout algorithms and interaction key issues. And finally, we describe briefly a proof of concept prototype and introduce our future work around graph structured semantic information tools.

Full paper

[PDF] Visualization, Navigation and Edition of Graph Structured Semantic Information