Calais (Reuters product) explained

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.

External links

• • Book: Case Study of Open Calais . E. . Curry . A. . Freitas . S. . O'Riáin . http://andrefreitas.org/papers/Community_Curated_Enterprise_preprint.pdf . Preprint . The Role of Community-Driven Data Curation for Enterprises . Linking Enterprise Data . D. . Wood . Boston, MA . Springer US . 2010 . 25–47 . 978-1441976642 . 10.1007/978-1-4419-7665-9 . 2010led..book.....W . 10983/14597 .

Notes and References

1. Web site: Calais Overview . 2008-10-24 . https://web.archive.org/web/20081024201531/http://www.opencalais.com/ . 2008-10-24 .
2. Web site: Reuters Wants The World To Be Tagged . 2008-04-12 . https://web.archive.org/web/20080411111826/http://www.readwriteweb.com/archives/reuters_calais.php . 2008-04-11 .
3. http://www.economist.com/displaystory.cfm?story_id=11002939 Start making sense
4. Web site: Intelligent Tagging . Refinitiv .
5. Web site: Calais API guide . 2008-10-24 . https://web.archive.org/web/20081023021111/http://opencalais.com/calaisAPI . 2008-10-23 .
6. Web site: ClearForest. 2012-11-27. https://web.archive.org/web/20130124003538/http://clearforest.com/. 2013-01-24.
7. Web site: WP Calais Auto Tagger . 2008-04-12 . 2008-04-13 . https://web.archive.org/web/20080413131221/http://www.dangrossman.info/wp-calais-auto-tagger/ . dead .
8. http://www.powerhousemuseum.com/dmsblog/index.php/2008/03/31/opac20-opencalais-meets-our-museum-collection-auto-tagging-and-semantic-parsing-of-collection-data/ OpenCalais meets our museum collection /auto-tagging and semantic parsing of collection data