Efficient Multimedia Time Series Data Retrieval Under Uniform Scaling and Normalisation

  • Waiyawuth Euachongprasit
  • Chotirat Ann Ratanamahatana
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4956)


As the world has shifted towards manipulation of information and its technology, we have been increasingly overwhelmed by the amount of available multimedia data while having higher expectations to fully exploit these data at hands. One of the attempts is to develop content-based multimedia information retrieval systems, which greatly facilitate us to intuitively search by its contents; a classic example is a Query-by-Humming system. Nevertheless, typical content-based search for multimedia data usually requires a large amount of storages and is computationally intensive. Recently, time series representation has been successfully applied to a wide variety of research, including multimedia retrieval due to the great reduction in time and space complexity. Besides, an enhancement, Uniform Scaling, has been proposed and applied prior to distance calculation, as well as it has been demonstrated that Uniform Scaling can outperform Euclidean distance. These previous work on Uniform Scaling, nonetheless, overlook the importance and effects of normalisation, which make their frameworks impractical for real world data. Therefore, in this paper, we justify this importance of normalisation in multimedia data and propose an efficient solution for searching multimedia time series data under Uniform Scaling and normalisation.


Content-Based Multimedia Retrieval Time Series Uniform Scaling 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Waiyawuth Euachongprasit
    • 1
  • Chotirat Ann Ratanamahatana
    • 1
  1. 1.Department of Computer EngineeringChulalongkorn UniversityBangkokThailand

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