نتایج جستجو برای: Kernel Functions

تعداد نتایج: 534716  

Machine-learning solutions to classification, clustering and matching problems critically depend on the adopted metric, which in the past was selected heuristically. In the last decade, it has been demonstrated that an appropriate metric can be learnt from data, resulting in superior performance as compared with traditional metrics. This has recently stimulated a considerable interest in the to...

Journal: :Transactions of the Japanese Society for Artificial Intelligence 2008

Bai, Lesaja, Mansouri, Roos, Zangiabadi,

 Many efficient interior-point methods (IPMs) are based on the use of a self-concordant barrier function for the domain of the problem that has to be solved. Recently, a wide class of new barrier functions has been introduced in which the functions are not self-concordant, but despite this fact give rise to efficient IPMs. Here, we introduce the notion of locally self-concordant barrier functio...

Journal: :journal of mining and environment 2016
m. sakizadeh r. mirzaei

the aim of this work is to examine the feasibilities of the support vector machines (svms) and k-nearest neighbor (k-nn) classifier methods for the classification of an aquifer in the khuzestan province, iran. for this purpose, 17 groundwater quality variables including ec, tds, turbidity, ph, total hardness, ca, mg, total alkalinity, sulfate, nitrate, nitrite, fluoride, phosphate, fe, mn, cu, ...

M. Araghi, M. Khatibinia,

Flow number of asphalt–aggregate mixtures as an explanatory factor has been proposed in order to assess the rutting potential of asphalt mixtures. This study proposes a multiple–kernel based support vector machine (MK–SVM) approach for modeling of flow number of asphalt mixtures. The MK–SVM approach consists of weighted least squares–support vector machine (WLS–SVM) integrating two kernel funct...

ژورنال: اندیشه آماری 2014

Classical methods in discrimination such as linear and quadratic do not have good efficiency in the case of nongaussian or nonlinear time series data. In nonparametric kernel discrimination in which the kernel estimators of likelihood functions are used instead of their real values has been shown to have good performance. The misclassification rate of kernel discrimination is usually less than ...

Journal: :Neurocomputing 2013

Journal: :Mathematical Problems in Engineering 2015

Journal: :iranian journal of oil & gas science and technology 2015
mohammad ali sebtosheikh reza motafakkerfard mohammad ali riahi siyamak moradi

the prediction of lithology is necessary in all areas of petroleum engineering. this means that todesign a project in any branch of petroleum engineering, the lithology must be well known. supportvector machines (svm’s) use an analytical approach to classification based on statistical learningtheory, the principles of structural risk minimization, and empirical risk minimization. in thisresearc...

Journal: :international journal of nonlinear analysis and applications 0
john venetis school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece emilios sideridis school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece.

in the present paper, we shall attempt to make a contribution to approximate analytical evaluation of the harmonic decomposition of an arbitrary continuous function. the basic assumption is that the class of functions that we investigate here, except the verification of dirichlet's principles, is concurrently able to be expanded in taylor's representation, over a particular interval o...

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