Christian Hying:
A Semantic Annotation Scheme for Spatial
Relations in Dialogue
Abstract
In this paper we present a two level annotation scheme for spatial relations,
in particular for the relative position relation. On the first level we annotate
lexical information comprising relation expression and its modifiers. On the
second level we annotate referential information. The referential information
comprises (i) links for each argument of the relation to a geometrical spatial
representation, (ii) a link to the representation of the entire spatial situation
which the relation applies to, and (iii) the logical structure, that indicates
whether the relation is embedded under coordination or negation. The link
to the entire spatial situation and the logical structure can not be determined
by looking at the isolated utterance alone. Therefore we describe annotation
principles that depend on speech act types and dialogue structure. For the
information of both annotation levels we provide a formal mapping onto semantic
representations in DRT (Kamp & Reyle 1993). The purpose of the annotation
is to provide a resource for testing various approaches for the semantics
of spatial descriptions in human-human conversation. The annotation scheme
has been applied in ongoing annotation work on 8 dialogues of the HCRC Map
Task corpus (Anderson et al. 1991) with the tool MMAX (Müller & Strube
2003) yielding 140 annotated relations.
|
