Thomson Reuters has revealed enterprise options for its Open Calais web service. Open Calais sends website content to the service, which scans it for keywords and patterns, and meta-tags it automatically. The service goes beyond simple entity identification, and offers semantic metadata by identifying facts and events in context. Open Calais was well received at its launch as a step forward for the semantic web, and Thomson Reuters started developing a commercial version. It can be typically applied in newspapers to automatically create tag clouds around different articles to provide a related article capability.

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