| Full text | |
| Author(s): |
Giusti, Rafael
;
Silva, Diego F.
;
Batista, Gustavo E. A. P. A.
;
IEEE
Total Authors: 4
|
| Document type: | Journal article |
| Source: | 2016 15TH IEEE INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND APPLICATIONS (ICMLA 2016); v. N/A, p. 6-pg., 2016-01-01. |
| Abstract | |
Time series classification is an important task in data mining that has been traditionally addressed with the use of similarity-based classifiers. The 1-NN DTW is typically considered the most accurate model for temporal data. Nevertheless, some authors have recently proposed ingenious alternatives to the 1-NN DTW by using diversity of time series representation or by using DTW for feature extraction. In this paper, we explore diversity of time series representations and distance functions to obtain distance features, which in turn are used to train an SVM model. We argue that the scientific community has largely neglected a vast body of unconventional distance functions, and we present empirical evidence that distance features are better than the 1-NN DTW with respect to classification accuracy. (AU) | |
| FAPESP's process: | 13/26151-5 - Time series analysis by similarity in large scale |
| Grantee: | Diego Furtado Silva |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 12/08923-8 - Times Series Classification Using Different Data Representations and Ensembles |
| Grantee: | Rafael Giusti |
| Support Opportunities: | Scholarships in Brazil - Doctorate |