نتایج جستجو برای: روش pca

تعداد نتایج: 392559  

Journal: : 2022

هدف: پژوهش حاضر با هدف بررسی مقایسه اثربخشی گروه درمانی شناختی – رفتاری و ذهن ­آگاهی مبتنی بر شناخت کاهش رفتارهای پرخطر در معتادان ترک افیونی صورت گرفت. روش: روش این شبه آزمایشی طرح پیش آزمون پس همراه کنترل است. جامعه­ی آماری شامل کلیه افراد وابسته به مواد مراجعه کننده مرکز اعتیاد شبکه بهداشت درمان شهرستان سرپل ذهاب نیمه اول سال 1396 بود، نمونه­ گیری دسترس تعداد 36 نفر تشخیص وابستگی اساس معیاره...

Journal: :IEEE Transactions on Information Theory 2012

2013
Ajay Kumar Bansal Pankaj Chawla

Face recognition has become a valuable and routine forensic tool used by criminal investigators. It is an important area of computer vision research and has gained significant interest in recent years. Efforts in improving security, such as automatic surveillance and the use of biometrics in identification, are partly responsible for this increased interest. However, several challenges remain i...

2008
Eduardo Fávero Pacheco da Luz José Carlos Becceneri Haroldo Fraga de Campos Velho

A new meta-heuristics is introduced here: the Multi-Particle Collision Algorithm (M-PCA). The M-PCA is based on the implementation of a function optimization algorithm driven for a collision process of multiple particles. A parallel version for the M-PCA is also described. The complexity for PCA, M-PCA, and a parallel implementation for the MPCA is developed. The efficiency for optimization for...

Journal: :International Journal of Artificial Intelligence & Applications 2012

Journal: :Information Sciences 2021

PCANet is an unsupervised Convolutional Neural Network (CNN), which uses Principal Component Analysis (PCA) to learn convolutional filters. One drawback of that linear PCA cannot capture nonlinear structures within data. To address this problem, a straightforward approach utilizing kernel methods by equipping the method in with function. However, practice leads network having cubic complexity r...

2011
Shinichi Nakajima Masashi Sugiyama S. Derin Babacan

In probabilistic PCA, the fully Bayesian estimation is computationally intractable. To cope with this problem, two types of approximation schemes were introduced: the partially Bayesian PCA (PB-PCA) where only the latent variables are integrated out, and the variational Bayesian PCA (VB-PCA) where the loading vectors are also integrated out. The VB-PCA was proposed as an improved variant of PB-...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید