نتایج جستجو برای: wise

تعداد نتایج: 25497  

Journal: :NeuroImage 2005
Dimitrios Pantazis Thomas E Nichols Sylvain Baillet Richard M Leahy

We describe the use of random field and permutation methods to detect activation in cortically constrained maps of current density computed from MEG data. The methods are applicable to any inverse imaging method that maps event-related MEG to a coregistered cortical surface. These approaches also extend directly to images computed from event-related EEG data. We determine statistical thresholds...

2008
Hongmei Jiang R.W. Doerge

Whole genome microarray investigations (e.g. differential expression, differential methylation, ChIP-Chip) provide opportunities to test millions of features in a genome. Traditional multiple comparison procedures such as familywise error rate (FWER) controlling procedures are too conservative. Although false discovery rate (FDR) procedures have been suggested as having greater power, the contr...

Journal: :journal of ai and data mining 2015
v. abolghasemi s. ferdowsi s. sanei

the focus of this paper is to consider the compressed sensing problem. it is stated that the compressed sensing theory, under certain conditions, helps relax the nyquist sampling theory and takes smaller samples. one of the important tasks in this theory is to carefully design measurement matrix (sampling operator). most existing methods in the literature attempt to optimize a randomly initiali...

2014
Hidekazu Oiwa Ryohei Fujimaki

Region-specific linear models are widely used in practical applications because of their non-linear but highly interpretable model representations. One of the key challenges in their use is non-convexity in simultaneous optimization of regions and region-specific models. This paper proposes novel convex region-specific linear models, which we refer to as partition-wise linear models. Our key id...

2013
Vilen Jumutc Johan A. K. Suykens

Pegasos is a popular and reliable machine learning algorithm for making linear Support Vector Machines solvable at the larger scale. It benefits from the strongly convex optimization objective, faster convergence rates and lower computational and memory costs. In this paper we devise a new weighted formulation of the Pegasos algorithm which favors from the different coordinate-wise λi regulariz...

2001
Michael D. Hurd

This paper utilizes the Asset and Health Dynamics of the Oldest Old (AHEAD) Panel to test for the absence of causal links from socio-economic status (SES) to innovations in health or mortality, and from health conditions to innovations in wealth. We conclude that there is no causal link from SES to mortality or to incidence of sudden onset health conditions (accidents and, probably, acute condi...

2007
Laurent Hascoët Stefka Fidanova Christophe Held

The reverse or adjoint mode of Automatic Diierentiation is a software engineering technique that permits eecient computation of gradients. However, this technique requires a lot of temporary memory storage. In this paper, we present iteration-wise adjoining, a reenement that reduces memory consumption in the case of parallel loops, and we give a proof of its correctness, based on properties of ...

Journal: :international journal of reproductive biomedicine 0
somaye khosravi farsani reza mahmoudi mir abbas abdolvahhabi mehdi abbasi fateme malek aligholi sobhani

background   objective:   materials and methods   results   conclusion   key words:   . vitrification, viability, in vitro maturation, gvbd, oocyte, mouse : these results suggest that step-wise vitrification of gvbd oocytes as compared to single step vitrification was better in the rate of survival and in vitro maturation of oocytes. : all non-vitrified oocytes were viable after 24 hr; however,...

Journal: :The Electronic Journal of Combinatorics 2000

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