Results 1 to 10 of about 1,240,449 (188)

Breakdown Point of Robust Support Vector Machines [PDF]

open access: yesEntropy, 2017
Support vector machine (SVM) is one of the most successful learning methods for solving classification problems. Despite its popularity, SVM has the serious drawback that it is sensitive to outliers in training samples. The penalty on misclassification is defined by a convex loss called the hinge loss, and the unboundedness of the convex loss causes the ...
Takafumi Kanamori, Shuhei Fujiwara
exaly   +5 more sources

Breakdown Point — Examples and Counterexamples

open access: yesRevstat Statistical Journal, 2007
The breakdown point plays an important though at times controversial role in statistics. In situations in which it has proved most successful there is a group of transformations which act on the sample space and which give rise to an equivariance structure.
Davies, P.L., Gather, U.
openaire   +4 more sources

Breakdown of conformal invariance at strongly random critical points [PDF]

open access: yesPhysical Review B, 2001
We consider the breakdown of conformal and scale invariance in random systems with strongly random critical points. Extending previous results on one-dimensional systems, we provide an example of a three-dimensional system which has a strongly random critical point.
Hastings, M. B., Sondhi, S. L.
core   +6 more sources

ASSESSING ROBUSTNESS OF CLASSIFICATION USING ANGULAR BREAKDOWN POINT. [PDF]

open access: yesAnn Stat, 2018
Robustness is a desirable property for many statistical techniques. As an important measure of robustness, breakdown point has been widely used for regression problems and many other settings. Despite the existing development, we observe that the standard breakdown point criterion is not directly applicable for many classification problems.
Zhao J, Yu G, Liu Y.
europepmc   +6 more sources

The finite sample breakdown point of PCS [PDF]

open access: yesStatistics and Probability Letters, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eric Schmitt
exaly   +3 more sources

The Masking Breakdown Point of Multivariate Outlier Identification Rules [PDF]

open access: yesJournal of the American Statistical Association, 1999
In this paper, we consider one-step outlier identifiation rules for multivariate data, generalizing the concept of so-called alpha outlier identifiers, as presented in Davies and Gather (1993) for the case of univariate samples. We investigate, how the finite-sample breakdown points of estimators used in these identification rules influence the masking
Claudia Becker, Ursula Gather
exaly   +7 more sources

Thermopower as a fingerprint of the Kondo breakdown quantum critical point [PDF]

open access: yesPhysical Review B, 2011
We propose that the thermoelectric power distinguishes two competing scenarios for quantum phase transitions in heavy fermions : the spin-density-wave (SDW) theory and breakdown of the Kondo effect. In the Kondo breakdown scenario, the Seebeck coefficient turns out to collapse from the temperature scale $E^{*}$, associated with quantum fluctuations of ...
Kim, K. -S., Pepin, C.
openaire   +3 more sources

Breakdown of Weak-Field Magnetotransport at a Metallic Quantum Critical Point [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, 3 figures RevTeX ...
Fenton, J., Schofield, A. J.
openaire   +4 more sources

Some Results on the Spatial Breakdown Point of Robust Point Estimates of the Variogram

open access: yesMathematical Geosciences, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R M Lark
exaly   +2 more sources

Finite sample breakdown point of Tukey’s halfspace median [PDF]

open access: yesScience China Mathematics, 2017
Tukey's halfspace median ($\HM$), servicing as the {multivariate} counterpart of the univariate median, has been introduced and extensively studied in the literature. It is supposed and expected to preserve robustness property (the most outstanding property) of the univariate median.
Yijun Zuo, Qihua Wang
exaly   +4 more sources

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