The OpenCalais Web Service automatically creates rich semantic metadata for content – in well under a second. Using natural language processing (NLP), machine learning and other methods, Calais analyzes documents and finds the entities within it. But, Calais goes well beyond classic entity identification and returns the facts and events hidden within your text as well. For more information about Calais, visit their Web site.
To enable OpenCalais metadata enrichment for all files, you have to request an OpenCalais API key at containing text, enter your OpenCalais API Key here. You can request an API key at:
You can add the key to the server configuration by adding the following line to config.properties.txt: