@article{258,
  author = {Dalibor Mitrovic, Matthias Zeppelzauer, Horst Eidenberger},
  title = {Analysis of the Data Quality of Audio Descriptions of Environmental Sounds},
  journal = {Journal of Digital Information Management},
  year = {2007},
  volume = {5},
  number = {2},
  doi = {},
  url = {http://www.dirf.org/jdim/v5n2a1.asp},
  abstract = {In this paper we perform statistical data analysis of a broad set of state-of-the-art audio features and low-level MPEG-7 audio descriptors. The investigation comprises data analysis to reveal redundancies between state-of-the-art audio features and MPEG-7 audio descriptors. We introduce a novel measure to evaluate the information content of a descriptor in terms of variance. Statistical data analysis reveals the amount of variance contained in a feature. It enables identification of independent and redundant features. This approach assists in efficient selection of orthogonal features for content-based retrieval. We believe that a good feature should provide descriptions with high variance for the underlying data. Combinations of features should consist of decorrelated features in order to increase expressiveness of the descriptions. Although MPEG-7 is a popular and widely used standard for multimedia description, only few investigations do exist that address analysis of the data quality of low-level MPEG-7 descriptions.},
}