Calais (Reuters product)

Calais is a service created by Thomson Reuters that automatically extracts semantic information from web pages in a format that can be used on the semantic web.[1] Calais was launched in January 2008, and is free to use.[2][3] The technology is now available via the website of Refinitiv, a provider of financial market data and infrastructure founded in 2018, that is a subsidiary of London Stock Exchange Group.[4]

The Calais Web service reads unstructured text and returns Resource Description Framework formatted results identifying entities, facts and events within the text.[5] The service appears to be based on technology acquired when Reuters purchased ClearForest in 2007.[6]

The technology has also been used to automatically tag blog articles,[7] and organize museum collections.[8]

Calais uses natural language processing technologies delivered via a web service interface.

References
  1. "Calais Overview". Archived from the original on 2008-10-24. Retrieved 2008-10-24.
  2. "Reuters Wants The World To Be Tagged". Archived from the original on 2008-04-11. Retrieved 2008-04-12.
  3. Start making sense
  4. "Intelligent Tagging". Refinitiv.
  5. "Calais API guide". Archived from the original on 2008-10-23. Retrieved 2008-10-24.
  6. "ClearForest". Archived from the original on 2013-01-24. Retrieved 2012-11-27.
  7. WP Calais Auto Tagger
  8. OpenCalais meets our museum collection /auto-tagging and semantic parsing of collection data


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