TY - GEN
T1 - On the Combination of Logistic Regression and Local Probability Estimates
AU - Osl, Melanie
AU - Baumgartner, C.
AU - Tilg, B.
AU - Dreiseitl, Stephan
PY - 2008
Y1 - 2008
N2 - Classifiers based on parametric or non-parametric learning methods have different advantages and disadvantages. To take advantage of the strengths of both methods, we propose an algorithm that combines a parametric model (logistic regression) with a non-parametric classification method (k-nearest neighbors). This combination is based on a measure of appropriateness that uses a heuristic to decide which of the two components should contribute more to the final classification output. We measure the performance of this combination method on two data sets (one from medical informatics, and one consisting of simulated data) in terms of areas under the ROC curves (AUCs). We are able to demonstrate that our method of combining classifiers exceeds the performance of both individual classifiers taken separately.
AB - Classifiers based on parametric or non-parametric learning methods have different advantages and disadvantages. To take advantage of the strengths of both methods, we propose an algorithm that combines a parametric model (logistic regression) with a non-parametric classification method (k-nearest neighbors). This combination is based on a measure of appropriateness that uses a heuristic to decide which of the two components should contribute more to the final classification output. We measure the performance of this combination method on two data sets (one from medical informatics, and one consisting of simulated data) in terms of areas under the ROC curves (AUCs). We are able to demonstrate that our method of combining classifiers exceeds the performance of both individual classifiers taken separately.
UR - http://www.scopus.com/inward/record.url?scp=67549101339&partnerID=8YFLogxK
U2 - 10.1109/BROADCOM.2008.59
DO - 10.1109/BROADCOM.2008.59
M3 - Conference contribution
SN - 9780769534534
T3 - Proceedings - 3rd International Conference on Broadband Communications, Informatics and Biomedical Applications, BroadCom 2008
SP - 124
EP - 128
BT - Proceedings - 3rd International Conference on Broadband Communications, Informatics and Biomedical Applications, BroadCom 2008
T2 - Broadcom 2008 - International Conference on Broadband Communications, Information Technology and Biomedical Applications
Y2 - 3 November 2008 through 6 November 2008
ER -