Applying Linked Data Principles to Linking Multilingual Wordnets

Wordnets are the most widely used lexical resources in natural language processing (NLP). There exist wordnets in more than 40 languages by now and all of these are connected to the original Princeton WordNet. The origins of linguistic linked data (LD) can thus in some sense be traced to the WordNet project. The implementation of the linking, however, has not relied on stable identifiers and has thus led to technical problems of reference when new versions of a wordnet are released. This chapter describes how linked data principles have been applied in the development of the Global WordNet Grid (GWG), an attempt to form a catalogue of interlingual contexts that extends beyond the Anglo-Saxon roots of the Princeton WordNet. We will describe in particular how LD technologies have been used in realizing a Collaborative Interlingual Index (CILI) that builds on standard LD vocabularies and the resource description framework (RDF) data model. We finally describe a method to link wordnets to external resources such as DBpedia/Wikipedia.

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