Qualitative Comparison of Temporal Series. QSI

  • Authors:
  • Juan A. Ortega;F. J. Cuberos;Rafael M. Gasca;Miguel Toro;J. Torres

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • CCIA '02 Proceedings of the 5th Catalonian Conference on AI: Topics in Artificial Intelligence
  • Year:
  • 2002

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Abstract

In this paper, the study of systems that evolve in time by means of the comparison of time series is proposed. An improvement in the form to compare temporal series with the incorporation of qualitative knowledge by means of qualitative labels is carried out. Each label represents a rank of values that, from a qualitative perspective, may be considered similar. The selection of labels of a single character allows the application of algorithms of string comparison. Finally, an index of similarity of time series based on the similarity of the obtained strings is defined.