| Boosting in the presence of noise |
| Full text |
Pdf
(273 KB)
|
| Source
|
Annual ACM Symposium on Theory of Computing
archive
Proceedings of the thirty-fifth annual ACM symposium on Theory of computing
table of contents
San Diego, CA, USA
SESSION: Session 4B
table of contents
Pages: 195 - 205
Year of Publication: 2003
ISBN:1-58113-674-9
|
|
Authors
|
|
| Sponsors |
|
| Publisher |
|
| Bibliometrics |
Downloads (6 Weeks): 4, Downloads (12 Months): 30, Citation Count: 4
|
|
|
ABSTRACT
Boosting algorithms are procedures that "boost" low accuracy weak learning algorithms to achieve arbitrarily high accuracy. Over the past decade boosting has been widely used in practice and has become a major research topic in computational learning theory. In this paper we study boosting in the presence of random classification noise, giving both positive and negative results.We show that a modified version of a boosting algorithm due to Mansour and McAllester [14] can achieve accuracy arbitrarily close to the noise rate. We also give a matching lower bound by showing that no efficient black-box boosting algorithm can boost accuracy beyond the noise rate (assuming that one-way functions exist). Finally, we consider a variant of the standard scenario for boosting in which the "weak learner" satisfies a slightly stronger condition than the usual weak learning guarantee. We give an efficient algorithm in this framework which can boost to arbitrarily high accuracy in the presence of classification noise.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
| |
1
|
|
| |
2
|
A. Blum, A. Frieze, R. Kannan, and S. Vempala. A polynomial time algorithm for learning noisy linear threshold functions. Algorithmica, 22(1/2):35--52, 1997.
|
| |
3
|
|
| |
4
|
J. Friedman, T. Hastie, and R. Tibshirani. Additive logistic regression: A statistical view of boosting. The Annals of Statistics, 28:337 -- 374, 2000.
|
| |
5
|
|
| |
6
|
|
 |
7
|
|
| |
8
|
|
| |
9
|
A. Kalai and R. Servedio. On the boosting ability of oblivious decision graphs. Unpublished manuscript, 2003.
|
 |
10
|
|
| |
11
|
|
 |
12
|
|
| |
13
|
|
| |
14
|
Y. Mansour and D. McAllester. Boosting using branching programs. Journal of Computer and System Sciences, 64(1):103--112, 2002.
|
| |
15
|
|
| |
16
|
|
CITED BY 4
|
|
Alina Beygelzimer , Varsha Dani , Tom Hayes , John Langford , Bianca Zadrozny, Error limiting reductions between classification tasks, Proceedings of the 22nd international conference on Machine learning, p.49-56, August 07-11, 2005, Bonn, Germany
|
|
|
|
|
|
|
|
|
|
|