Entity Co-reference Engine

The Entity co-reference Engine performs co-reference resolution of Named Entities in a given text. The co-references will be noun phrases which refer to those Named Entities by having a minimal set of attributes which match contextual information (rdf:type of the entity and spatial and object function giving info) from entity repositories such as Dbpedia and Yago for that Named Entity.

We have the following text as an example : “Microsoft has posted its 2013 earnings. The software company did better than expected. ... The Redmond-based company will hire 500 new developers this year.” The enhancement engine will link “Microsoft” with “The software company” and “The Redmond-based company”.

(1) Configuring the Engine

TODO

(2) Running the Entity co-reference engine in Stanbol.

In order to run the engine you need to add it to a chain that also contains the following engine types:

• a language detection engine
• a sentence detection engine (like opennlp-sentence)
• a token detection engine (like opennlp-token)
• a NER detection engine (like opennlp-ner)
• a noun phrase detection engine (like pos-chunker)

The default data bundle which contains dbpedia and yago data with which the coreferencing is done is the entity-coref-dbpedia data bundle. You can find the bundle in data/sites/entity-coref-dbpedia. Install this bundle into Stanbol. You can create your own data bundle but be sure to input the correct attributes when configuring the engine(see point no 1).