Title
Online regularized learning with pairwise loss functions.
Abstract
Recently, there has been considerable work on analyzing learning algorithms with pairwise loss functions in the batch setting. There is relatively little theoretical work on analyzing their online algorithms, despite of their popularity in practice due to the scalability to big data. In this paper, we consider online learning algorithms with pairwise loss functions based on regularization schemes in reproducing kernel Hilbert spaces. In particular, we establish the convergence of the last iterate of the online algorithm under a very weak assumption on the step sizes and derive satisfactory convergence rates for polynomially decaying step sizes. Our technique uses Rademacher complexities which handle function classes associated with pairwise loss functions. Since pairwise learning involves pairs of examples, which are no longer i.i.d., standard techniques do not directly apply to such pairwise learning algorithms. Hence, our results are a non-trivial extension of those in the setting of univariate loss functions to the pairwise setting.
Year
DOI
Venue
2017
10.1007/s10444-016-9479-7
Adv. Comput. Math.
Keywords
Field
DocType
Pairwise learning,Online learning,Regularization,RKHS,68Q32,68T05,62J02,62L20
Kernel (linear algebra),Hilbert space,Convergence (routing),Pairwise comparison,Online algorithm,Mathematical optimization,Regularization (mathematics),Mathematics,Reproducing kernel Hilbert space,Scalability
Journal
Volume
Issue
ISSN
43
1
1019-7168
Citations 
PageRank 
References 
4
0.40
21
Authors
3
Name
Order
Citations
PageRank
Zheng-Chu Guo1262.66
Yiming Ying2100856.43
Ding-xuan Zhou395481.62