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- 70 creator boris-motik.
- 70 type InProceedings.
- 70 label "Representing and Querying Validity Time in RDF and OWL: A Logic-Based Approach".
- 70 sameAs 70.
- 70 abstract "RDF(S) and OWL 2 currently support only static ontologies. In practice, however, the truth of statements often changes with time, and Semantic Web applications often need to represent such changes and reason about them. In this paper we present a logic-based approach for representing validity time in RDF and OWL. Unlike the existing proposals, our approach is applicable to entailment relations that are not deterministic, such as the Direct Semantics or the RDF-Based Semantics of OWL 2.We also extend SPARQL to temporal RDF graphs and present a query evaluation algorithm. Finally, we present an optimization of our algorithm that is applicable to entailment relations characterized by a set of deterministic rules, such RDF(S) and OWL 2 RL/RDF entailment.".
- 70 hasAuthorList authorList.
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- 70 keyword "semantic web".
- 70 title "Representing and Querying Validity Time in RDF and OWL: A Logic-Based Approach".
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- 83 creator christophe-gueret.
- 83 creator frank-van-harmelen.
- 83 creator paul-groth.
- 83 creator stefan-schlobach.
- 83 type InProceedings.
- 83 label "Finding the Achilles Heel of the Web of Data: using network analysis for link-recommendation".
- 83 sameAs 83.
- 83 abstract "The Web of Data is increasingly becoming an important infrastructure for such diverse sectors as entertainment, government, e-commerce and science. As a result, the robustness of this Web of Data is now crucial. Prior studies show that the Web of Data is strongly dependent on a small number of central hubs, making it highly vulnerable to single points of failure. In this paper, we present concepts and algorithms to analyse and repair the brittleness of the Web of Data. We apply these on a substantial subset of it, the 2010 Billion Triple Challenge dataset. We first distinguish the physical structure of the Web of Data from its semantic structure. For both of these structures, we then calculate their robustness, taking betweenness centrality as a robustness-measure. To the best of our knowledge, this is the first time that such robustness-indicators have been calculated for the Web of Data. Finally, we determine which links should be added to the Web of Data in order to improve its robustness most effectively. We are able to determine such links by interpreting the question as a very large optimisation problem and deploying an evolutionary algorithm to solve this problem. We believe that with this work, we offer an effective method to analyse and improve the most important structure that the Semantic Web community has constructed to date.".
- 83 hasAuthorList authorList.
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- 83 keyword "semantic web".
- 83 title "Finding the Achilles Heel of the Web of Data: using network analysis for link-recommendation".
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- item-1 hasContent christophe-gueret.
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- item-3 hasContent frank-van-harmelen.
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- 84 creator adam-marcus.
- 84 creator david-karger.
- 84 creator edward-benson.
- 84 creator fabian-howahl.
- 84 type InProceedings.
- 84 label "Talking about Data: Sharing Richly Structured Information through Blogs and Wikis".
- 84 sameAs 84.
- 84 abstract "Several projects have brought rich data semantics to collaborative wikis, but blogging platforms remain primarily limited to text. As blogs comprise a significant portion of the web's content, engagement of the blogging community is crucial to the development of the semantic web. We provide a study of blog content to show a latent need for better data publishing and visualization support in blogging software. We then present DataPress, an extension to the WordPress blogging platform that enables users to publish, share, aggregate, and visualize structured information using the same workflow that they already apply to text-based content. In particular, we aim to preserve those attributes that make blogs such a successful publication medium: one-click access to the information, one-click publishing of it, natural authoring interfaces, and easy copy and paste of information (and visualizations) from other sources. We reflect on how our designs make progress toward these goals with a study of how users who installed DataPress made use of various features.".
- 84 hasAuthorList authorList.
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- 84 keyword "semantic web".
- 84 title "Talking about Data: Sharing Richly Structured Information through Blogs and Wikis".
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- item-1 hasContent edward-benson.
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- item-2 hasContent adam-marcus.
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- 900 creator austin-haugen.
- 900 type InProceedings.
- 900 label "The Open Graph Protocol Design Decisions".
- 900 sameAs 900.
- 900 abstract "The Open Graph protocol enables any web page to become a rich object in a social graph. It was created by Facebook but designed to be generally useful to anyone. While many different technologies and schemas exist and could be combined together, there is not a single technology which provides enough information to richly represent any web page within the social graph. The Open Graph protocol builds on these existing technologies and gives developers one thing to implement. Developer simplicity is a key goal of the Open Graph protocol which has informed many of the technical design decisions. This talk will explore the motivation of the Open Graph protocol and the design decisions which went into creating it.".
- 900 hasAuthorList authorList.
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- 900 keyword "semantic web".
- 900 title "The Open Graph Protocol Design Decisions".
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- item-1 hasContent austin-haugen.
- 901 creator jing-he.
- 901 creator xiaoming-li.
- 901 type InProceedings.