Similarity search in multimedia time series data using amplitude-level features

  • Authors:
  • Johannes Aßfalg;Hans-Peter Kriegel;Peer Kröger;Peter Kunath;Alexey Pryakhin;Matthias Renz

  • Affiliations:
  • Institute for Informatics, Ludwig-Maximilians-Universität München, Germany;Institute for Informatics, Ludwig-Maximilians-Universität München, Germany;Institute for Informatics, Ludwig-Maximilians-Universität München, Germany;Institute for Informatics, Ludwig-Maximilians-Universität München, Germany;Institute for Informatics, Ludwig-Maximilians-Universität München, Germany;Institute for Informatics, Ludwig-Maximilians-Universität München, Germany

  • Venue:
  • MMM'08 Proceedings of the 14th international conference on Advances in multimedia modeling
  • Year:
  • 2008

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Abstract

Effective similarity search in multi-media time series such as video or audio sequences is important for content-based multi-media retrieval applications. We propose a framework that extracts a sequence of local features from large multi-media time series that reflect the characteristics of the complex structured time series more accurately than global features. In addition, we propose a set of suitable local features that can be derived by our framework. These features are scanned from a time series amplitude-levelwise and are called amplitude-level features. Our experimental evaluation shows that our method models the intuitive similarity of multi-media time series better than existing techniques.