GRaSP: A Multilayered Annotation Scheme for Perspectives

Chantal van Son, Tommaso Caselli, Antske Fokkens, Isa Maks, Roser Morante, Lora Aroyo, Piek Vossen


Abstract
This paper presents a framework and methodology for the annotation of perspectives in text. In the last decade, different aspects of linguistic encoding of perspectives have been targeted as separated phenomena through different annotation initiatives. We propose an annotation scheme that integrates these different phenomena. We use a multilayered annotation approach, splitting the annotation of different aspects of perspectives into small subsequent subtasks in order to reduce the complexity of the task and to better monitor interactions between layers. Currently, we have included four layers of perspective annotation: events, attribution, factuality and opinion. The annotations are integrated in a formal model called GRaSP, which provides the means to represent instances (e.g. events, entities) and propositions in the (real or assumed) world in relation to their mentions in text. Then, the relation between the source and target of a perspective is characterized by means of perspective annotations. This enables us to place alternative perspectives on the same entity, event or proposition next to each other.
Anthology ID:
L16-1187
Volume:
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)
Month:
May
Year:
2016
Address:
Portorož, Slovenia
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
1177–1184
Language:
URL:
https://aclanthology.org/L16-1187
DOI:
Bibkey:
Cite (ACL):
Chantal van Son, Tommaso Caselli, Antske Fokkens, Isa Maks, Roser Morante, Lora Aroyo, and Piek Vossen. 2016. GRaSP: A Multilayered Annotation Scheme for Perspectives. In Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16), pages 1177–1184, Portorož, Slovenia. European Language Resources Association (ELRA).
Cite (Informal):
GRaSP: A Multilayered Annotation Scheme for Perspectives (van Son et al., LREC 2016)
Copy Citation:
PDF:
https://aclanthology.org/L16-1187.pdf
Data
MPQA Opinion Corpus