Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43778
Title: Noise-benefit FRSDE for speedup of density estimation on large data
Authors: Wang, G
Choi, KS 
Deng, Z
Keywords: Core set
Fast reduced set density estimator
Minimal enclosing ball
NB-FRSDE
Noise-benefit
Issue Date: 2016
Publisher: IOS Press
Source: Journal of intelligent and fuzzy systems, 2016, v. 30, no. 1, p. 443-450 How to cite?
Journal: Journal of intelligent and fuzzy systems 
Abstract: Fast Reduced set density estimator (FRSDE) is an important technique to realize the fast kernel density estimation based on the fast minimal enclosing ball (MEB) approximation technique. However, its performance on the running time is severely affected by the approximation parameter ε used in this algorithm, where a smaller value will lead to more accurate approximation but heavy learning burden. In this study, we reveal that the random Gaussian white noise manually added to the data will speed up the learning and accordingly propose a speedup version of FRSDE, i.e., the noise-benefit FRSDE (NB-FRSDE). NB-FRSDE can realize such a speedup because a larger value of ε can be used on the noisy version of the original data to obtain the equivalent approximation performance, which only can be obtained by FRSDE on the original data with a smaller value of ε. The distinctive characteristics of NB-FRSDE exist in the following aspects: (1) its implementation is very simple because NB-FRSDE is the same as FRSDE except that there are Gaussian noises manually added to the original data in NB-FRSDE. (2) While most of the existing machine learning methods always try to remove the noise in order to overcome the influence of noise, NB-FRSDE benefits from the manually added noise in the sense of the average running time. The experimental studies on density estimation and its application to image segmentation demonstrate the above advantages.
URI: http://hdl.handle.net/10397/43778
ISSN: 1064-1246 (Print)
1875-8967 (online)
DOI: 10.3233/IFS-151768
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

31
Last Week
6
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.