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Ïã¸ÛÁùºÏ²Ê¿ª½± 24617-8:2016 establishes the representation and annotation of local, "low-level" discourse relations between situations mentioned in discourse, where each relation is annotated independently of other relations in the same discourse.

Ïã¸ÛÁùºÏ²Ê¿ª½± 24617-8:2016 provides a basis for annotating discourse relations by specifying a set of core discourse relations, many of which have similar definitions in different frameworks. To the extent possible, this document provides mappings of the semantics across the different frameworks.

Ïã¸ÛÁùºÏ²Ê¿ª½± 24617-8:2016 is applicable to two different situations:

- for annotating discourse relations in natural language corpora;

- as a target representation of automatic methods for shallow discourse parsing, for summarization, and for other applications.

The objectives of this specification are to provide:

- a reference set of data categories that define a collection of discourse relation types with an explicit semantics;

- a pivot representation based on a framework for defining discourse relations that can facilitate mapping between different frameworks;

- a basis for developing guidelines for creating new resources that will be immediately interoperable with pre-existing resources.

With respect to discourse structure, the limitation of this document to specifications for annotating local, "low-level" discourse relations is based on the view that (a) the analysis at this level is what is well understood and can be clearly defined; (b) further extensions to represent higher-level, global discourse structure is possible where desired; and (c) that it allows for the resulting annotations to be compatible across frameworks, even when they are based on different theories of discourse structure.

As a part of the Ïã¸ÛÁùºÏ²Ê¿ª½± 24617 semantic annotation framework ("SemAF"), the present DR-core standard aims to be transparent in its relation to existing frameworks for discourse relation annotation, but also to be compatible with other Ïã¸ÛÁùºÏ²Ê¿ª½± 24617 parts. Some discourse relations are specific to interactive discourse, and give rise to an overlap with Ïã¸ÛÁùºÏ²Ê¿ª½± 24617 Part 2, the Ïã¸ÛÁùºÏ²Ê¿ª½± standard for dialogue act annotation. Other discourse relations relate to time, and their annotation forms part of Ïã¸ÛÁùºÏ²Ê¿ª½± 24617‑1 (time and events); still other discourse relations are very similar to certain predicate-argument relations ("semantic roles"), whose annotation is the subject matter of Ïã¸ÛÁùºÏ²Ê¿ª½± 24617‑4. Since the various parts are required to form a consistent whole, this document pays special attention to the interactions of discourse relation annotation and other semantic annotation schemes (see Clause 8).

Ïã¸ÛÁùºÏ²Ê¿ª½± 24617-8:2016 does not consider global, higher-level discourse structure representation which involves linking local discourse relations to form one or more composite global structures.

Ïã¸ÛÁùºÏ²Ê¿ª½± 24617-8:2016 is, moreover, restricted to strictly semantic relations, to the exclusion of, for example, presentational relations, which concern the way in which a text is presented to its readers or the way in which speakers structure their contributions in a spoken dialogue.