Dynamic Feature Selection in Incremental Hierarchical Clustering
ECML '00 Proceedings of the 11th European Conference on Machine Learning
Machine Learning
A Survey of Outlier Detection Methodologies
Artificial Intelligence Review
Toward Integrating Feature Selection Algorithms for Classification and Clustering
IEEE Transactions on Knowledge and Data Engineering
Feature Selection for Medical Data Mining: Comparisons of Expert Judgment and Automatic Approaches
CBMS '06 Proceedings of the 19th IEEE Symposium on Computer-Based Medical Systems
The Journal of Machine Learning Research
Principal component analysis in ECG signal processing
EURASIP Journal on Applied Signal Processing
Principal component analysis for data containing outliers and missing elements
Computational Statistics & Data Analysis
Medical data mining by fuzzy modeling with selected features
Artificial Intelligence in Medicine
A General Framework for Increasing the Robustness of PCA-Based Correlation Clustering Algorithms
SSDBM '08 Proceedings of the 20th international conference on Scientific and Statistical Database Management
Diagnosis of Breast Cancer Tumor Based on PCA and Fuzzy Support Vector Machine Classifier
ICNC '08 Proceedings of the 2008 Fourth International Conference on Natural Computation - Volume 04
An effective gene selection method based on relevance analysis and discernibility matrix
PAKDD'07 Proceedings of the 11th Pacific-Asia conference on Advances in knowledge discovery and data mining
Computer Methods and Programs in Biomedicine
Multistage approach for clustering and classification of ECG data
Computer Methods and Programs in Biomedicine
Computer Methods and Programs in Biomedicine
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The computer-assisted analysis of biomedical records has become an essential tool in clinical settings. However, current devices provide a growing amount of data that often exceeds the processing capacity of normal computers. As this amount of information rises, new demands for more efficient data extracting methods appear. This paper addresses the task of data mining in physiological records using a feature selection scheme. An unsupervised method based on relevance analysis is described. This scheme uses a least-squares optimization of the input feature matrix in a single iteration. The output of the algorithm is a feature weighting vector. The performance of the method was assessed using a heartbeat clustering test on real ECG records. The quantitative cluster validity measures yielded a correctly classified heartbeat rate of 98.69% (specificity), 85.88% (sensitivity) and 95.04% (general clustering performance), which is even higher than the performance achieved by other similar ECG clustering studies. The number of features was reduced on average from 100 to 18, and the temporal cost was a 43% lower than in previous ECG clustering schemes.