Title of article :
A new approach to qualitative learning in time series
Author/Authors :
Gonzalez-Abril، نويسنده , , L. and Velasco، نويسنده , , F. and Ortega، نويسنده , , J.A. and Cuberos، نويسنده , , F.J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
In this paper the k-nearest-neighbours (KNN) based method is presented for the classification of time series which use qualitative learning to identify similarities using kernels. To this end, time series are transformed into symbol strings by means of several discretization methods and a distance based on a kernel between symbols in ordinal scale is used to calculate the similarity between time series. Hence, the idea proposed is the consideration of the simultaneous use of symbolic representation together with a kernel based approach for classification of time series. The methodology has been tested and compared with quantitative learning from a television-viewing shared data set and has yielded a high success identification ratio.
Keywords :
k-nearest-neighbours , KERNEL , Similarity , discretization
Journal title :
Expert Systems with Applications
Journal title :
Expert Systems with Applications