Titlebook: On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops; OTM Confederated Int Robert Meersman,Zahir Tari,Pilar Herrero Conferen

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Collaborative Data Synchronization in an Instance-Mapped P2P Data Sharing Systemreated relational database. We assume that data-level mappings are used to resolve data heterogeneity between two peers. According to the strategy, peers resolve update execution conflicts during data synchronization in a collaborative fashion.

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Translating XPath Queries into SPARQL Queriesrives from its basic concept, the path expression, with which the user can hierarchically address the nodes of the XML data. The user of XPath may not only use simple relationships like parent-child, but also more complex relationships like the descendant relationship, which is the transitive closur

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Implementing OCL as a Database Query Languageramming tools. The key expectation behind MDA is achieving a productivity gain through the automating software construction based on models. In this paper we focus on one of possible model application, namely executable models.

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Improving Scalability in Pub-Sub Knowledge-Based Networking by Semantic Clusteringation of push/pull message delivery. Knowledge-based Networks (KBN) extends content-based networks by allowing subscriptions to be matched not only on the contents of messages, but also on some semantics of the message contents [1,2,3]. This creates a fuller, richer and more meaningful system whereb

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Capturing Ontology Evolution Processes by Repeated Sampling of Large Document Collectionsscribes an explicit, data-driven approach to capture and visualize ontology evolution by semi-automatically extending small seed ontologies. This process captures ontology changes reflected in large document collections. The visualization of these changes helps characterize the evolution process, an

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Automatic Annotation in Data Integration Systemsg targeted to textual data sources like most of the traditional WSD algorithms, CWSD can exploit knowledge from the structure of data sources together with the lexical knowledge associated with schema elements (terms in the following)..We integrated CWSD in the MOMIS system (Mediator EnvirOment forM

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Volunteer Computing, an Interesting Option for Grid Computing: Extremadura as Case Studys) in order to deploy an infrastructure for distributed computing over Secondary School computing resources at Extremadura (Spain). To achieve the highest levels of performance, some tests have been developed. From small proofs of concepts with a few dozens of computers to large deployments devoted