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Data Model
Liberman and Bird8.3 claim that all types of annotations as described above
may technically be represented in form of a directed, acyclic graph
where the nodes of the graph may (but do not need to) represent points in time while the arcs
between the nodes represent labels or tags. This data model is very useful
if you intend to write your own annotation software. At the
LDC8.4 you will
find a number of publicly available software tools and libraries
(Annotation Graph Tool Kit, AGTK) that
might be used for that purpose and that are all based on the data model
of Liberman and Bird. Since the internal data model is independent of
the file format, you may use these tools and libraries for all kinds of
processing tools that deal with the input, output or transformation of
annotation data. Please refer to the documentation on the
above-mentioned web-site as well as to [1].
BITS Projekt-Account
2004-06-01