To resolve class-ambiguity in real world problems, we previously presented two different ensemble approaches with support vector machines (SVMs): multiple decision templates (MuDTs) and dynamic ordering of one-vs.-all SVMs (DO-SVMs). MuDTs is a classifier fusion method, which models intra-class variations as subclass templates. On the other hand, DO-SVMs is an ensemble method that dynamically selects proper SVMs to classify an input sample based on its class probability. In this paper, we newly propose a hybrid scheme of those two approaches to utilize their complementary properties. The localized fusion approach of MuDTs increases variance of the classification models while the dynamic selection scheme of DO-SVMs reduces the unbiased-variance, which causes incorrect prediction. We show the complementary properties of MuDTs and DO-SVMs with several benchmark datasets and verify the performance of the proposed method. We also test how much our method could increase its baseline accuracy by comparing with other combinatorial ensemble approaches.
|Number of pages||12|
|Journal||Expert Systems with Applications|
|Publication status||Published - 2015 Jan|
Bibliographical noteFunding Information:
This work was supported by the Industrial Strategic Technology Development Program , 10044828 , Development of augmenting multisensory technology for enhancing significant effect on service industry, funded by the Ministry of Trade, Industry & Energy (MI, Korea).
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Artificial Intelligence