A comparison of random forest with ECOC-based classifiers
Smith, RS, Bober, M and Windeatt, T (2011) A comparison of random forest with ECOC-based classifiers Lecture Notes in Computer Science: Multiple Classifier Systems, 6713 . 207 - 216.
|PDF - Accepted Version |
Available under License : See the attached licence file.
|Plain Text (licence)|
Official URL: http://dx.doi.org/10.1007/978-3-642-21557-5_23
We compare experimentally the performance of three approaches to ensemble-based classification on general multi-class datasets. These are the methods of random forest, error-correcting output codes (ECOC) and ECOC enhanced by the use of bootstrapping and class-separability weighting (ECOC-BW). These experiments suggest that ECOC-BW yields better generalisation performance than either random forest or unmodified ECOC. A bias-variance analysis indicates that ECOC benefits from reduced bias, when compared to random forest, and that ECOC-BW benefits additionally from reduced variance. One disadvantage of ECOC-based algorithms, however, when compared with random forest, is that they impose a greater computational demand leading to longer training times.
|Additional Information:||The original publication is available at http://www.springerlink.com|
|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing|
|Deposited By:||Symplectic Elements|
|Deposited On:||22 Mar 2012 10:41|
|Last Modified:||16 Feb 2013 16:36|
Repository Staff Only: item control page