Linked Data is a method of exposing, sharing and connecting data on the web via dereferenceable URIs. Linked Data aims to extend the Web with a data commons by publishing various open datasets as RDF on the Web and by setting RDF links between data items from different data sources. The Linked Data cloud currently consists of over 7.4 billion RDF triples, interlinked by 142+ million RDF links. A diagram of the linked data cloud, as of 2011, is shown below.
AlchemyAPI provides comprehensive support for RDF and Linked Data, enabling any content to be brought into the semantic web with relative ease. Linked data is available for entity extraction, concept tagging and relation extraction, and it allows an incredible amount of additional information to be analyzed.
For example, if Apple, Inc. is identified as an entity in your content, using Linked Data makes it possible to get the following information: number of Apple employees, number of worldwide Apple locations, or last year's Net Operating Income. If AlchemyAPI finds a member of Congress in the content, linked data can access his or her picture, birth date, party affiliation, alma Mater or successor. The possibilities are endless.
The Linked Data Cloud
The following linked data resources are used by AlchemyAPI. If linked data is enabled and an entry for an extracted entity or tagged concept exists in any of these resources, it will be returned as part of the response.
If an entity or concept has its own website, the link will be returned in the response as part of the linked data.
For entities and concepts that have a physical location, the latitude and longitude of the location will be included.