Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.


Durham Research Online
You are in:

Bandwidth selection for mean-shift based unsupervised learning techniques : a unified approach via self-coverage.

Einbeck, Jochen (2011) 'Bandwidth selection for mean-shift based unsupervised learning techniques : a unified approach via self-coverage.', Journal of pattern recognition research., 6 (2). pp. 175-192.

Abstract

The mean shift is a simple but powerful tool emerging from the computer science literature which shifts a point to the local center of mass around this point. It has been used as a building block for several nonparametric unsupervised learning techniques, such as density mode estimation, clustering, and the estimation of principal curves. Due to the localized way of averaging, it requires the specification of a window size in form of a bandwidth (matrix). This paper proposes to use a so-called self-coverage measure as a general device for bandwidth selection in this context. In short, a bandwidth h will be favorable if a high proportion of data points falls within circles or ``hypertubes"; of radius h centered at the fitted object. The method is illustrated through real data examples in the light of several unsupervised estimation problems.

Item Type:Article
Full text:PDF - Published Version (574Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.13176/11.288
Record Created:20 Oct 2011 15:35
Last Modified:04 Sep 2013 14:52

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitterExport: EndNote, Zotero | BibTex
Usage statisticsLook up in GoogleScholar | Find in a UK Library