Referring expression refers to an entity that has been expli citly evoked John owns a car.

Example of referring expression. -The person who stole my bag is my. Referring expressions REFERRING EXPRESSION- any expression used in an utterance to refer to something or someone used with a particular referent in mind Fredin Fred hit me but not in Theres no Fred at this address. Can involve Synonymy Hyponymy Meronymy or other form of inference eg I bought an iPad today.

Theres no Fred at this address the speaker would not have a particular person in mind Fred is not a referring expression. Therefore in example 20 you will mark two referring expressions. The simplest type of referring expressions are pronoun such as he and it.

-Some apples are bought by my grandmother. Indefinite noun phrases can be referring expressions. RE is any expression used in an utterance to refer to something or someone or a clearly delimited collection of things or people ie.

A REFERRING EXPRESSION is any expression used in an utterance to refer to something or someone or a clearly delimited collection of things or people ie. In Theres no Fred at this address. The green boxes are ground truth andthe blue boxes are.

-Five boys are playing guitar Definite Noun Phrase uses proper name personal pronoun and longer descriptive expression. The first row are twoexamples of referring expression generation. A referring expression is a piece of language a noun phrase that is used in an utterance and is linked to something outside language.

They are so cool. Kent cigarette and Kent cigarette filters Sometimes these rules lead you to mark rather large portions of text as referring expressions with multiple nesting referring expressions only the largest referring expression has. The linguistics and natural language processing communities have developed various models for predicting anaphor referents such as centering theory and ideally referring-expression generation would be based on such models.