Availability Assessment of a Cloud Server System: Comparing Markov and Semi-Markov Models

Author(s):  
Oleg Ivanchenko ◽  
Vyacheslav Kharchenko ◽  
Boris Moroz ◽  
Yuriy Ponochovnyi ◽  
Larysa Degtyareva
2021 ◽  
Vol 1043 (2) ◽  
pp. 022021
Author(s):  
Haining Meng ◽  
Yuekai Shi ◽  
Yilin Qu ◽  
Junhuai Li ◽  
Jianjun Liu

2021 ◽  
Vol 1 (1) ◽  
pp. 39-44
Author(s):  
Ifvan Limalasa Mayendra ◽  
Herman Saputra ◽  
Uswatun Hasanah

Abstract: The file becomes an important thing in any case. Especially in the world of education which is something that can’t be avoided that students must be able to create and save files correctly, both assignments and reports. Files stored on a computer do not guarantee that the data will be forever stored, because every month a computer maintenance must be held in a computer laboratory. Local cloud server technology with Nextcloud that uses the CentOs 7 operating system is very suitable to be applied in the SRH Training Center laboratory as a means of storing files and managing files in a Local Area Network. In this study the local cloud server was built with apache web server and mysql database and also with several packages supporting the Nextcloud application. With the construction of a local cloud server system with Nextcloud, students and teaching staff can easily manage the required learning files. Keywords: CentOs 7, Local Area Network, Local Cloud Server, Nextcloud, Web Server.  Abstrak: File  menjadi  suatu  hal  yang  penting  dalam  hal  apapun.  Apalagi  di  dunia pendidikan yang menjadi suatu hal yang tidak bisa dihindari bahwa siswa harus mampu membuat dan menyimpan file dengan benar, baik itu tugas maupun laporan. File yang disimpan dalam komputer tidak menjamin data akan selamanya tersimpan, karena setiap bulan pasti diadakan maintenance komputer yang ada di laboratorium komputer. Teknologi local cloud server dengan Nextcloud yang menggunakan sistem operasi CentOs 7 sangat cocok  diterapkan  dalam  laboratorium SRH Training Center sebagai sarana penyimpanan file dan memanajemen file dalam satu jaringan Local  Area  Network.  Pada  penelitian  ini local cloud server dibangun dengan web server apache dan database mysql dan juga dengan beberapa paket pendukung aplikasi Nextcloud. Dengan dibangunnya sistem local cloud server dengan Nextcloud, maka siswa-siswi dan tenaga pengajar dapat mudah dalam memanejemen file pembelajaran yang dibutuhkan. Kata Kunci: CentOs 7, Local Area Network, Local Cloud Server, Nextcloud, Web Server.


1999 ◽  
Vol 28 (1) ◽  
pp. 165-176
Author(s):  
Sati Mazumdar ◽  
Kenneth Liu ◽  
Sang Ahnn ◽  
Patricia R. Houck ◽  
Charles F. Reynolds

2019 ◽  
Vol 16 (8) ◽  
pp. 663-664 ◽  
Author(s):  
Jasleen K. Grewal ◽  
Martin Krzywinski ◽  
Naomi Altman
Keyword(s):  

2015 ◽  
Vol 135 (12) ◽  
pp. 1517-1523 ◽  
Author(s):  
Yicheng Jin ◽  
Takuto Sakuma ◽  
Shohei Kato ◽  
Tsutomu Kunitachi

Author(s):  
M. Vidyasagar

This book explores important aspects of Markov and hidden Markov processes and the applications of these ideas to various problems in computational biology. It starts from first principles, so that no previous knowledge of probability is necessary. However, the work is rigorous and mathematical, making it useful to engineers and mathematicians, even those not interested in biological applications. A range of exercises is provided, including drills to familiarize the reader with concepts and more advanced problems that require deep thinking about the theory. Biological applications are taken from post-genomic biology, especially genomics and proteomics. The topics examined include standard material such as the Perron–Frobenius theorem, transient and recurrent states, hitting probabilities and hitting times, maximum likelihood estimation, the Viterbi algorithm, and the Baum–Welch algorithm. The book contains discussions of extremely useful topics not usually seen at the basic level, such as ergodicity of Markov processes, Markov Chain Monte Carlo (MCMC), information theory, and large deviation theory for both i.i.d and Markov processes. It also presents state-of-the-art realization theory for hidden Markov models. Among biological applications, it offers an in-depth look at the BLAST (Basic Local Alignment Search Technique) algorithm, including a comprehensive explanation of the underlying theory. Other applications such as profile hidden Markov models are also explored.


Author(s):  
P.Venu Gopala Rao ◽  
Eslavath Raja ◽  
Ramakrishna Gandi ◽  
G. Ravi Kumar

IoT (Internet of Things) has become most significant area of research to design an efficient data enabled services with the help of sensors. In this paper, a low-cost system design for e-healthcare service to process the sensitive health data is presented. Vital signs of the human body are measured from the patient location and shared with a registered medical professional for consultation. Temperature and heart rate are the major signals obtained from a patient for the initial build of the system. Data is sent to a cloud server where processing and analysis is provided for the medical professional to analyze. Secure transmission and dissemination of data through the cloud server is provided with an authentication system and the patient could be able to track his data through a smart phone on connecting to the cloud server. A prototype of the system along with its design parameters has been discussed.


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