| Paper ID | SPTM-7.3 |
| Paper Title |
AUTOMATIC ORDER SELECTION IN AUTOREGRESSIVE MODELING WITH APPLICATION IN EEG SLEEP-STAGE CLASSIFICATION |
| Authors |
Farah Nassif, Soosan Beheshti, Ryerson University, Canada |
| Session | SPTM-7: Estimation Theory and Methods 1 |
| Location | Gather.Town |
| Session Time: | Wednesday, 09 June, 13:00 - 13:45 |
| Presentation Time: | Wednesday, 09 June, 13:00 - 13:45 |
| Presentation |
Poster
|
| Topic |
Signal Processing Theory and Methods: [SSP] Statistical Signal Processing |
| IEEE Xplore Open Preview |
Click here to view in IEEE Xplore |
| Virtual Presentation |
Click here to watch in the Virtual Conference |
| Abstract |
This paper investigates the order selection problem for autoregressive models from a new perspective. It is known that the modeling error is a decreasing function of the model complexity and cannot directly be used for order selection. In the proposed approach, denoted by minimum mismatch modeling error (3ME), the modeling error is used to estimate the 3ME which is the true representation of the optimum order. The proposed approach provides probabilistic upperbounds on the mismatch modeling error using a statistical learning approach. Simulation results on generated synthetic data shows advantages of the 3ME method compared to existing order selection methods such as AIC and BIC as it avoids model overparametrizing or underparametrizing and improves the accuracy. 3ME can automate AR order selection which is a valuable feature. As shown in the simulation results for sleep-stage classification, the automated estimated order can be used as an additional feature in the classification process to increase accuracy. |
