نتایج جستجو برای: الگوریتم ica

تعداد نتایج: 31011  

پایان نامه :موسسه آموزش عالی روزبهان ساری - دانشکده مهندسی کامپیوتر 1393

زمانبندی تولید کارگاهی یک زمانبندی برنامه ریزی شده برای سیستمهای کم حجم با پراکندگی زیاد در مجموعه نیازمندی ها است در محیط مسئله زمان بندی تولید کارگاهی j کار برای پردازش برروی m ماشین با یک تابع هدف معین برای یافتن کوتاه ترین زمان پردازش وجود دارد مسئله زمان بندی تولید کارگاهی با j کار برای پردازش برروی بیش از دو ماشین در حوضه مسائل ترکیبی دسته بندی می شود. مسئله زمانبندی کار کارگاهی از رده ...

Journal: :Journal of Vascular Surgery 2023

Modified eversion carotid endarterectomy (meCEA) is an alternative to classical patch angioplasty or eversion. An meCEA involves everting the plaque through a longitudinal incision over common artery without transecting internal (ICA). Those who advocate cite propensity of luminal narrowing from procedure restenosis as reason avoid primary repair. We seek objectively quantify outcome after repa...

2003
Önsen TOYGAR Adnan ACAN

In this paper, the performances of appearance-based statistical methods such as Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and Independent Component Analysis (ICA) are tested and compared for the recognition of colored face images. Three sets of experiments are conducted for relative performance evaluations. In the first set of experiments, the recognition performanc...

2009
L. Albera A. Kachenoura A. Karfoul P. Comon L. Senhadji

This communication aims at giving some insights into the use of Independent Component Analysis (ICA) for solving biomedical problems. First the concept of ICA is reviewed and different classes of ICA methods are described. Next a survey on most encountered biomedical problems solved using ICA is detailed. Finally a comparative performance study of thirteen ICA algorithms is performed on biomedical

Journal: :Neurologia medico-chirurgica 2010
Toru Masuoka Nakamasa Hayashi Emiko Hori Naoya Kuwayama Osamu Ohtani Shunro Endo

The intracranial internal carotid artery (ICA) is a muscular artery and lacks external elastic lamina (EEL). Stenosis of the intracranial ICA is relatively uncommon, but the most common site is the cavernous portion. The characteristics of the arterial wall structures were examined using serial 3-mm sections of 32 intracranial ICAs obtained from 50 cadavers to identify where the EEL disappeared...

Journal: :NeuroImage 2014
Yaqub Jonmohamadi Govinda R. Poudel Carrie R. H. Innes Richard D. Jones

We propose source-space independent component analysis (ICA) for separation, tomography, and time-course reconstruction of EEG and MEG source signals. Source-space ICA is based on the application of singular value decomposition and ICA on the neuroelectrical signals from all brain voxels obtained post minimum-variance beamforming of sensor-space EEG or MEG. We describe the theoretical backgroun...

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2013
Yibo Wang Bin Lv Jinxing Chen Yu Zhang Fang Luo Na Lu Kai Sun Zhihui Hou Huili Cao Irfan Zeb Matthew Budoff Rutai Hui

OBJECTIVE The clinical significance of an intramural course (or bridging) of the coronary artery remains controversial. We investigated the relationship between intramural coronary arteries (ICAs) and coronary stenosis and prognosis of subjects with ICA. METHODS AND RESULTS ICA and coronary stenosis were assessed by multidetector computed tomography coronary angiography. ICAs in the left ante...

2010
Vahid Khorani Farzad Razavi Ahsan Ghoncheh

In this paper a new method is proposed based on the combination of ICA (Imperial Competitive Algorithm) and GA (Genetic Algorithm) which improves the convergence speed and accuracy of the optimization results. The new algorithm, which is named R-ICA-GA (RecursiveICA-GA), runs ICA and GA consecutively. It is shown that a fast decrease occurs while the proposed algorithm switches from ICA to GA. ...

Journal: :IEEE open journal of the Communications Society 2021

Full-duplex communications systems that transmit and receive simultaneously suffer self-interference due to the mixing of transmitted signal weaker received at same node. The problem becomes compounded in Multi-Input Multi-Output (MIMO) systems, where considerable overhead is dedicated training. In this article, we discuss using blind source separation techniques, namely Independent Component A...

Journal: :Inf. Sci. 2007
Qiu-Hua Lin Yong-Rui Zheng Fuliang Yin Hualou Liang Vince D. Calhoun

Independent component analysis (ICA) aims to recover a set of unknown mutually independent source signals from their observed mixtures without knowledge of the mixing coefficients. In some applications, it is preferable to extract only one desired source signal instead of all source signals, and this can be achieved by a one-unit ICA technique. ICA with reference (ICA-R) is a one-unit ICA algor...

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