"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS DO MAL"

Matematicas preuniversitarias,fisica preuniversitaria,algebra,geometria,trigonometria
mathematics,physics,geometry,Математика,College,Pre-College,vestibular universidades,olimpiadas de matematicas,Mathematical Olympiad,Algebra Problems,Geometry Problems,High School Geometry,Trigonometry Problems,Descriptive Geometry,Problems In Calculus Of One Variable,ECUACIONES DIFERENCIALES,problemas de fisica,Problems On Physics,Linear Algebra,Problems In Elementary Mathematics,Inequalities,Mathematics for high school students,EXAMENS DE ADMISION ALGEBRA.
   

https://picasion.com/
https://picasion.com/

BLOG DO ENG. ARMANDO CAVERO MIRANDA -BRASIL


quarta-feira, 27 de maio de 2020

Algebra at mathematics admissions examinations to MSU-Moscow State University G. Falin, A. Falin.-EXAMENS DE ADMISION ALGEBRA









ENLACE ORIGINAL :https://obuchalka.org/20200416120320/algebra-na-vstupitelnih-ekzamenah-po-matematike-v-mgu-falin-g-i-falin-a-i-2020.html

LINK DOWNLOAD:http://www.mediafire.com/file/ituymxuc9yx00ay/ALGEBRA_EXAMENES_UNIVERSIDAD_MOSCU.pdf/file

Linear Algebra And Multi Dimensional Geometry – Efimov, Rozendorn


About the book This book was conceived as a text combining the course of linear algebra and analytic geometry. It originated as a course of lectures delivered by N. V. Efimov at Moscow State University (mechanics and mathematics department) in 1964-1966. However, the material of these lectures has been completely reworked and substantially expanded. We have tried to bear in mind the requi­rements of other mathematical disciplines and also of mechanics and physics. We hope that all parts of the text will be useful.

ORIGINAL LINKS EN LA WEB
https://mirtitles.org/2020/02/13/4129/

https://archive.org/details/linearalgebraandmultidimensionalgeometry/

FILE  PDF: https://archive.org/download/linearalgebraandmultidimensionalgeometry/Efimov%2C%20Rozendorn%20-%20Linear%20Algebra%20and%20Multi-Dimensional%20Geometry%20-%20Mir%20d.pdf

domingo, 24 de maio de 2020

PRACTICA CALIFICADA DE MATEMATICAS I -MA-113-FACULTAD DE INGENIERIA ELECTRICA Y ELECTRONICA-UNIVERSIDAD NACIONAL DE INGENIERIA-LIMA PERU

PUBLICOU UMA COLABORAÇÃO DO ENGENHEIRO PERUANO Ivan Eduardo Castillo Castilla DO GRUPO DE FACEBOOK LIBROS BOLETINES Y SEPARATAS DE ANTAÑO DE MEU CARO COLEGA ENG. ALDO JUAN GIL CRISOSTOMO.

terça-feira, 14 de abril de 2020

Vilenkin N.Ya., Bohan K.A., Maron I.A., Matveev I.V., Smolyansky M.L., Tsvetkov A.T. Task book on the course of mathematical analysis. Part II M .: Education, 1971



LINK ORIGINAL: http://ikfia.ysn.ru/wp-content/uploads/2018/01/Vilenkin_ch2_1971ru.pdf

Deep Learning for Medical Imaging: COVID-19 Detection-MATLAB-MATHWORKS- Dr. Barath Narayanan


Barath Narayanan


Posted by Johanna Pingel, March 18, 2020

I'm pleased to publish another post from Barath Narayanan, University of Dayton Research Institute (UDRI), LinkedIn Profile. Co-author: Dr. Russell C. Hardie, University of Dayton (UD) Dr. Barath Narayanan graduated with MS and Ph.D. degree in Electrical Engineering from the University of Dayton (UD) in 2013 and 2017 respectively. He currently holds a joint appointment as a Research Scientist at UDRI's Software Systems Group and as an Adjunct Faculty for the ECE department at UD. His research interests include deep learning, machine learning, computer vision, and pattern recognition. In this blog, we are applying a Deep Learning (DL) based technique for detecting COVID-19 on Chest Radiographs using MATLAB.

 Background

 Coronavirus disease (COVID-19) is a new strain of disease in humans discovered in 2019 that has never been identified in the past. Coronavirus is a large family of viruses that causes illness in patients ranging from common cold to advanced respiratory syndromes such as Middle East Respiratory Syndrome (MERS-COV) and Severe Acute Respiratory Syndrome (SARS-COV). Many people are currently affected and are being treated across the world causing a global pandemic. In the United States alone, 160 million to 214 million people could be infected over the course of the COVID-19 epidemic (https://www.nytimes.com/2020/03/13/us/coronavirus-deaths-estimate.html). Several countries have declared a national emergency and have quarantined millions of people. Here is a detailed article on how coronavirus affects people: https://www.nytimes.com/article/coronavirus-body-symptoms.html

Detection and diagnosis tools offer a valuable second opinion to the doctors and assist them in the screening process. This type of mechanism would also assist in providing results to the doctors quickly. In this blog, we are applying a Deep Learning (DL) based technique for detecting COVID-19 on Chest Radiographs using MATLAB.

The COVID-19 dataset utilized in this blog was curated by Dr. Joseph Cohen, a postdoctoral fellow at the University of Montreal. Thanks to the article by Dr. Adrian Rosebrock for making this chest radiograph dataset reachable to researchers across the globe and for presenting the initial work using DL. Note that we solely utilize the x-ray images. You should be able to download the images from the article directly. After downloading the ZIP files from the website and extracting them to a folder called "Covid 19", we have one sub-folder per class in "dataset". Label "Covid" indicates the presence of COVID-19 in the patient and "normal" otherwise. Since, we have equal distribution (25 images) of both classes, there is no class imbalance issue here.

K-fold Validation

As you already know that there is a limited set of images available in this dataset, we split the dataset into 10-folds for analysis i.e. 10 different algorithms would be trained using different set of images from the dataset. This type of validation study would provide us a better estimate of our performance in comparison to typical hold-out validation method.

 We adopt ResNet-50 architecture in this blog as it has proven to be highly effective for various medical imaging applications [1,2].



 LINK