Browsing by Subject "Linked Data"
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Item Building a Mobile Applications Knowledge Base for the Linked Data Cloud(CEUR-WS, 2015-10-12) Pappachan, Primal; Yus, Roberto; Das, Prajit Kumar; Mehrotra, Sharad; Finin, Tim; Joshi, AnupamThe number of mobile applications (apps) in major app stores exceeded one million in 2013. While app stores provide a central point for storing app metadata, they often impose restrictions on the access to this information thus limiting the potential to develop tools to search, recommend, and analyze app information. A few projects have circumvented these limitations and managed to create a dataset with a substantial number of apps. However, accessing this information, especially for the purpose of an integrated view, is difficult as there is no common standard for publishing data. We present Mobipedia, an effort to gather this information from various sources and publish it as RDF Linked Data. We describe the status of Mobipedia, which currently has information on more than one million apps that has been extracted from a number of unstructured and semi-structured sources. This paper describes the ontology used to model information, the process for fact extraction, and an overview of applications facilitated by Mobipedia.Item owl:sameAs and Linked Data: An Empirical Study(2010-04-26) Ding, Li; Shinavier, Joshua; Finin, Tim; McGuinness, Deborah L.Linked Data is a steadily growing presence on the Web. In Linked Data, the description of resources can be obtained incrementally by dereferencing the URIs of resources via the HTTP protocol. The use of owl:sameAs further enriches the Linked Data space by declaratively supporting distributed semantic data integration at the instance level. When consuming Linked Data, users should be careful when handling owl:sameAs: in that URIs linked by owl:sameAs may not be appropriate for simple aggregation, and that recursively exploring owl:sameAs may lead to considerable network overhead. In this work, we discuss and conduct an empirical pilot study on the usage of owl:sameAs in the Linked Data community. The results include initial quantitative measures of the usage of owl:sameAs. Based on observations of these results, we further discuss several strategies for dealing with owl:sameAs in Linked Data applications.