Tools | Bookmark & Share | Make MrWhy My Homepage
MrWhy.com
Go
MrWhy.com » Videos » Multiple Kernel Learning and the SMO Algorithm
Multiple Kernel Learning and the SMO Algorithm
Multiple Kernel Learning and the SMO Algorithm
Report
Multiple Kernel Learning and the SMO Algorithm
Our objective is to train p-norm Multiple Kernel Learning (MKL) and, more generally, linear MKL regularised by the Bregman divergence, using the Sequential Minimal Optimization (SMO) algorithm. The SMO algorithm is simple, easy to implement and adapt, and efficiently scales to large problems. As a result, it has gained widespread acceptance and SVMs are routinely trained using SMO in diverse real world applications. Training using SMO has been a long standing goa in MKL for the very same reasons. Unfortunately, the standard MKL dual is not differentiable, and therefore can not be optimised using SMO style co-ordinate ascent. In this paper, we demonstrate that linear MKL regularised with the p-norm squared, or with certain Bregma divergences, can indeed be trained using SMO. The resulting algorithm retains both simplicity and efficiency and is significantly faster than the state-of-the-art specialised p-norm MKL solvers. We show that we can train on a hundred thousand kernels in approximately seven minutes and on fifty thousand points in less than half an hour on a single core.
Channel: VideoLectures
Category: Educational
Video Length: 0
Date Found: March 26, 2011
Date Produced: March 25, 2011
View Count: 0
 
MrWhy.com Special Offers
1
2
3
4
5
 
About Us: About MrWhy.com | Advertise on MrWhy.com | Contact MrWhy.com | Privacy Policy | MrWhy.com Partners
Answers: Questions and Answers | Browse by Category
Comparison Shopping: Comparison Shopping | Browse by Category | Top Searches
Shop eBay: Shop eBay | Browse by Category
Shop Amazon: Shop Amazon | Browse by Category
Videos: Video Search | Browse by Category
Web Search: Web Search | Browse by Searches
Copyright © 2011 MrWhy.com. All rights reserved.