Page "Natural language processing" Paragraph 19

* Coreference resolution: Given a sentence or larger chunk of text, determine which words (" mentions ") refer to the same objects (" entities ").

Anaphora resolution is a specific example of this task, and is specifically concerned with matching up pronouns with the nouns or names that they refer to.

For example, in a sentence such as " He entered John's house through the front door ", " the front door " is a referring expression and the bridging relationship to be identified is the fact that the door being referred to is the front door of John's house ( rather than of some other structure that might also be referred to ).