LOD Cloud Analysis

The amount of data within the LOD Cloud is steadily increasing and resembles a rich source of information. Since context-aware services (CAS) are based on the correlation of heterogeneous data sources for deriving the contextual situation of a target, it makes sense to leverage that enormous amount of data already present in the LOD Cloud to enhance the quality of these services.

In [von Hoffen et al., 2014], we have investigated the applicability of the LOD Cloud as a context provider for enriching CAS. One requirement for achieving this is the availability of context information reachable through endpoints.

Live Availability Check

A live availability check is performed once a day for each data provider. Up-to-date information of all datasets and endpoints is retrieved from datahub.io on a daily basis.

Availability of LOD Datasets

Number of LOD SPARQL Endpoints