Section-Wise similarities for classification of subjective-data on time series

Authors:
Isaac Martín de Diego;Oscar S. Siordia;Cristina Conde;Enrique Cabello
Affiliations:
Face Recognition and Artificial Vision Group, Universidad Rey Juan Carlos, Móstoles, España;Face Recognition and Artificial Vision Group, Universidad Rey Juan Carlos, Móstoles, España;Face Recognition and Artificial Vision Group, Universidad Rey Juan Carlos, Móstoles, España;Face Recognition and Artificial Vision Group, Universidad Rey Juan Carlos, Móstoles, España
Venue:
CIARP'11 Proceedings of the 16th Iberoamerican Congress conference on Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications
Year:
2011

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Abstract

The aim of this paper is to present a novelty methodology to develop similarity measures for classification of time series. First, a linear segmentation algorithm to obtain a section-wise representation of the series is presented. Then, two similarity measures are defined from the differences between the behavior of the series and the level of the series, respectively. The method is applied to subjective-data on time series generated through the evaluations of the driving risk from a group of traffic safety experts. These series are classified using the proposed similarities as kernels for the training of a Support Vector Machine. The results are compared with other classifiers using our similarities, their linear combination and the raw data. The proposed methodology has been successfully evaluated on several databases.