NIF Combinator: Combining NLP Tool Output
The NLP Interchange Format (NIF) is an RDF/OWL-based format that provides interoperability between Natural Language Processing (NLP) tools, language resources and annotations by allowing NLP tools to exchange annotations about text documents in RDF. Other than more centralized solutions such as UIMA and GATE, NIF enables the creation of heterogeneous, distributed and loosely coupled NLP applications, which use the Web as an integration platform. NIF wrappers have to be only created once for a particular tool and can subsequently interoperate with a potentially large number of other tools. We present (1) the currently implemented NIF wrappers, which are available as free web services and (2) a GUI called the NIF Combinator, which allows to combine the output of the implemented NIF web services.
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