Title :
Information Theoretic Mean Shift Algorithm
Author :
Rao, Sudhir ; Liu, Weifeng ; Principe, Jose C. ; de Medeiros Martins, A.
Author_Institution :
Dept. of ECE, Florida Univ., Gainesville, FL
Abstract :
In this paper we introduce a new cost function called information theoretic mean shift algorithm to capture the "predominant structure" in the data. We formulate this problem with a cost function which minimizes the entropy of the data subject to the constraint that the Cauchy-Schwartz distance between the new and the original dataset is fixed to some constant value. We show that Gaussian mean shift and the Gaussian blurring mean shift are special cases of this generalized algorithm giving a whole new perspective to the idea of mean shift. Further this algorithm can also be used to capture the principal curve of the data making it ubiquitous for manifold learning.
Keywords :
Gaussian processes; data structures; entropy; Cauchy-Schwartz distance; Gaussian blurring mean shift; cost function; data entropy minimization; data predominant structure; information theory; manifold learning; mean shift algorithm; Application software; Clustering algorithms; Cost function; Entropy; Gaussian distribution; Iterative algorithms; Iterative methods; Kernel; Probability; Shape control;
Conference_Titel :
Machine Learning for Signal Processing, 2006. Proceedings of the 2006 16th IEEE Signal Processing Society Workshop on
Conference_Location :
Arlington, VA
Print_ISBN :
1-4244-0656-0
Electronic_ISBN :
1551-2541
DOI :
10.1109/MLSP.2006.275540