Title :
Large margin AR model for time series classification
Author :
Venkataramana, K.B. ; Sekhar, C. Chandra
Author_Institution :
Honeywell Technol. Solutions Lab., Bangalore
Abstract :
In this paper we propose a new method for time series pattern classification. It is based on the generative modeling using Autoregressive(AR) model and optimizing the boundaries between these models using the large margin concepts. The developed model captures the correlations in the time series data. Multi-class classification can be performed directly without performing binary classification. The optimization is performed using genetic algorithm for obtaining global optimal parameters. The developed method is applied on simulated and ECG data and found to perform better than the methods which utilize the AR coefficients as the features for the classification.
Keywords :
autoregressive processes; electrocardiography; genetic algorithms; medical signal processing; pattern classification; signal classification; time series; ECG; autoregressive model; genetic algorithm; large margin AR model; multiclass classification; optimization; time series pattern classification; Computer science; Electrocardiography; Genetic algorithms; Pattern classification; Pattern recognition; Predictive models; Probability distribution; Signal analysis; Speech recognition; Training data;
Conference_Titel :
Pattern Recognition, 2008. ICPR 2008. 19th International Conference on
Conference_Location :
Tampa, FL
Print_ISBN :
978-1-4244-2174-9
Electronic_ISBN :
1051-4651
DOI :
10.1109/ICPR.2008.4761719