Title :
A novel kernel method for clustering
Author :
Camastra, Francesco ; Verri, Alessandro
Author_Institution :
INFM-DISI, Genova Univ., Italy
fDate :
5/1/2005 12:00:00 AM
Abstract :
Kernel methods are algorithms that, by replacing the inner product with an appropriate positive definite function, implicitly perform a nonlinear mapping of the input data into a high-dimensional feature space. In this paper, we present a kernel method for clustering inspired by the classical k-means algorithm in which each cluster is iteratively refined using a one-class support vector machine. Our method, which can be easily implemented, compares favorably with respect to popular clustering algorithms, like k-means, neural gas, and self-organizing maps, on a synthetic data set and three UCI real data benchmarks (IRIS data, Wisconsin breast cancer database, Spam database).
Keywords :
pattern clustering; support vector machines; clustering algorithm; high-dimensional feature space; k-means algorithm; kernel clustering method; neural gas; nonlinear mapping; positive definite function; self-organizing maps; support vector machine; Breast cancer; Clustering algorithms; Iris; Iterative algorithms; Kernel; Quantization; Self organizing feature maps; Spatial databases; Support vector machine classification; Support vector machines; EM algorithm; Index Terms- Kernel methods; K-Means.; clustering algorithms; one class SVM; Algorithms; Artificial Intelligence; Breast Neoplasms; Cluster Analysis; Computer Simulation; Diagnosis, Computer-Assisted; Humans; Information Storage and Retrieval; Models, Biological; Models, Statistical; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.2005.88