@techreport{TR-IC-08-17,
  number = {IC-08-17},
  author = {Gilberto Zonta {Pastorello Jr} and
            Jaudete Daltio and
            Claudia Bauzer Medeiros},
  title = {An Annotation Propagation Mechanism for Multimedia Content},
  month = {August},
  year = {2008}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 31 pages.
    \par\selectlanguage{english}\textbf{Abstract}
       Scientific research is producing and consuming large volumes of
       multimedia data at an ever growing rate. Metadata -- data about
       data -- is the primary mechanism through which context is
       associated to content to enhance content management. It also makes
       it easier to interpret and share data and helps digital curation.
       However, raw data often needs to go through complex processing
       steps before it can be consumed. During these transformation
       processes, original metadata from the production phase is often
       discarded or ignored, since its usefulness is usually limited to
       the first transformation step. New metadata must be associated
       with the final product, a time consuming task often carried out
       manually. Systematically associating new metadata to the result
       of each data transformation step is know as metadata evolution
       or annotation propagation. This paper introduces techniques for
       semantically enhancing metadata and automatically transforming
       them along with the data transformation processes. This helps the
       construction of new annotated multimedia data sets, preserving
       contextual information. The solution is based on: (i) the notion
       of semantic annotations, which are metadata structures enriched
       with domain ontologies; (ii) a set of transformations rules,
       based on ontological relations; and, (iii) workflows, which steer
       the sequence of transformations.
  }
}