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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