نتایج جستجو برای: orthogonal regression

تعداد نتایج: 362809  

Journal: :CoRR 2017
Lester W. Mackey Vasilis Syrgkanis Ilias Zadik

Double machine learning provides √ n-consistent estimates of parameters of interest even when highdimensional or nonparametric nuisance parameters are estimated at an n−1/4 rate. The key is to employ Neyman-orthogonal moment equations which are first-order insensitive to perturbations in the nuisance parameters. We show that the n−1/4 requirement can be improved to n−1/(2k+2) by employing a kth...

Journal: :Eng. Appl. of AI 2013
Lu Han Liyan Han Hongwei Zhao

The most commonly used techniques for credit scoring is logistic regression, and more recent research has proposed that the support vector machine is a more effective method. However, both logistic regression and support vector machine suffers from curse of dimension. In this paper, we introduce a new way to address this problem which is defined as orthogonal dimension reduction. We discuss the...

2003
Wiebke S. Diestelkamp Jay H. Beder

In this paper, we show that the projection of a regular orthogonal array of strength t onto more than t factors consists of replicates of either a fractional factorial or a full factorial design of strength t, depending on the number of factors retained in the projection.

Journal: :SIAM J. Imaging Sciences 2012
Massimo Fornasier Y. Kim Andreas Langer Carola-Bibiane Schönlieb

In this paper we show additional properties of the limit of the sequence produced by the subspace correction algorithm proposed by Fornasier and Schönlieb [24] for L2/TV -minimization problems. Inspired by the work of Vonesch and Unser [34], we adapt and specify this algorithm to the case of an orthogonal wavelet space decomposition and for deblurring problems.

1993
JAROSLAV KAUTSKY

It is shown that regularity of orthogonal wavelet matrices, i.e. vanishing of discrete moments of some of their rows, corresponds to maximizing the discrete moments of one of the rows. This leads to an algorithm for calculation of such wavelets by nding a vector which simultaneosly vanishes certain indeenite quadratic forms.

Journal: :Discrete Mathematics 2008
Sven Hartmann Uwe Leck Volker Leck

An orthogonal double cover (ODC) of the complete graph Kn by a graph G is a collection G of n spanning subgraphs of Kn, all isomorphic toG, such that any two members ofG share exactly one edge and every edge ofKn is contained in exactly two members of G. In the 1980s Hering posed the problem to decide the existence of an ODC for the case that G is an almost-Hamiltonian cycle, i.e. a cycle of le...

Journal: :international journal of advanced design and manufacturing technology 0
sina zanousi ms student of mechanical engineering babol noshiravani university of technology, iran ruzbeh shafaghat assist. prof., mech. eng., babolnoshiravani university of technology, babol, iran. qadir esmaili assist. prof., mech. eng., ayatollah amoli branch, islamic azad university, amol, iran.

in this study, flow characteristics through symmetric stenosis artery are investigated. the shape of eccentricity for stenotic flows is limited by circular-cross sections and plaques are usually assumed as to be oriented concentrically. thegoverningequationsaretheusualnavier-stokesequationsandare numericallysolved by using finite volumemethod in arbitrary orthogonal curvilinear coordinates. in ad...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده فنی 1392

کنترل پیش بین به عنوان روش کنترلی پیشرفته به دلیل مزایای فراوانی که نسبت به روش های کنترل کلاسیک دارد در صنعت و جوامع تحقیقاتی توجه بسیاری را به خود جلب کرده است. این روش همانند هر روش دیگر معایبی نیز دارد. در این روش به منظور بدست آوردن رابطه ی خطّی برحسب پارامترهای طراحی برای خروجی پیش بینی شده، رهیافت معمول بسط دادن سیگنال کنترلی آینده با استفاده از عملگرهای شیفت به جلو است. یکی از پیامدهای ا...

2009
PETER Z. G. QIAN JEFF WU

We propose an approach to constructing a new type of design, a sliced space-filling design, intended for computer experiments with qualitative and quantitative factors. The approach starts with constructing a Latin hypercube design based on a special orthogonal array for the quantitative factors and then partitions the design into groups corresponding to different level combinations of the qual...

2007
A. Aguglia

A simple orthogonal array OA(q2n−1, q2n−2, q, 2) is constructed by using the action of a large subgroup of PGL(n + 1, q2) on a set of non degenerate Hermitian varieties in PG(n, q2).

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