Managing Linked Data on the Web: the LinkedMDB showcase

The Linking Open Data community project is extending the Web by encouraging the creation of interlinks (RDF links between data items from different datasets identified using dereferenceable URIs). This emerging web of linked data is closely intertwined with the existing web, since structured data items can be embedded into web documents (e.g., RDFa or microformat encoded data), and RDF links can reference classic web pages. Abundant linked data justifies extending the capabilities of web browsers and search engines, and enables new usage scenarios, novel applications and sophisticated mashups. This promising direction for publishing data on the web brings forward a number of challenges. While existing data management techniques can be leveraged to address the challenges, there are unique aspects to managing web scale interlinking. In this presentation, we describe two specific challenges; achieving and managing dense interlinking, and describing data, metadata, and interlinking within and among linked web datasets. Approaches to solve these challenges are showcased in the context of LinkedMDB, the first open linked dataset for movies. LinkedMDB has a large number of interlinks (over a quarter of a million) to other open linked datasets, as well as RDF links to movie-related webpages.