scholarly journals Russian section of GGOS: Network status and progress

2017 ◽  
Vol 8 (2) ◽  
pp. 90-95
Author(s):  
A. Ipatov ◽  
I. Gayazov ◽  
S. Donchenko ◽  
S. Karutin ◽  
V. Shargorodsky
2020 ◽  
pp. 1-11
Author(s):  
Zhang Yingying

Public art communication in colleges and universities needs to be launched with the support of artificial intelligence systems. According to the current situation of public art communication in colleges and universities, this paper builds a smart cloud platform for public art communication in colleges and universities with the support of artificial intelligence algorithms. Moreover, this paper introduces the bandwidth offset coefficient to judge the change of network throughput, introduces the slice download rate difference to first judge the consistency change trend of bandwidth, and then further proposes the calculation method of bandwidth prediction value by situation. In addition, this paper proposes a flexible transmission mechanism based on smart collaborative networks. Through in-depth perception of network status and component behavior, this mechanism implements the selection of the optimal path in the network according to the current network status and user service requirements to complete the transmission of service resources. If the current transmission path fails, the mechanism should ensure the continuity and reliability of the service. The research results show that the system constructed in this paper has good performance and can be applied to practice.


Author(s):  
Shanshan Yu ◽  
Jicheng Zhang ◽  
Ju Liu ◽  
Xiaoqing Zhang ◽  
Yafeng Li ◽  
...  

AbstractIn order to solve the problem of distributed denial of service (DDoS) attack detection in software-defined network, we proposed a cooperative DDoS attack detection scheme based on entropy and ensemble learning. This method sets up a coarse-grained preliminary detection module based on entropy in the edge switch to monitor the network status in real time and report to the controller if any abnormality is found. Simultaneously, a fine-grained precise attack detection module is designed in the controller, and a ensemble learning-based algorithm is utilized to further identify abnormal traffic accurately. In this framework, the idle computing capability of edge switches is fully utilized with the design idea of edge computing to offload part of the detection task from the control plane to the data plane innovatively. Simulation results of two common DDoS attack methods, ICMP and SYN, show that the system can effectively detect DDoS attacks and greatly reduce the southbound communication overhead and the burden of the controller as well as the detection delay of the attacks.


2013 ◽  
Vol 318 ◽  
pp. 572-575
Author(s):  
Li Li Yu ◽  
Yu Hong Li ◽  
Ai Feng Wang

In this paper a quality monitoring system for seismic while drilling (SWD) that integrates the whole process of data acquisition was developed. The acquisition equipment, network status and signals of accelerometer and geophone were monitored real-time. With fast signal analysis and quality evaluation, the acquisition parameters and drilling engineering parameters can be adjusted timely. The application of the system can improve the quality of data acquisition and provide subsequent processing and interpretation with high qualified reliable data.


2021 ◽  
Vol 21 (4) ◽  
pp. 1-23
Author(s):  
Bin Yuan ◽  
Chen Lin ◽  
Deqing Zou ◽  
Laurence Tianruo Yang ◽  
Hai Jin

The rapid development of the Internet of Things has led to demand for high-speed data transformation. Serving this purpose is the Tactile Internet, which facilitates data transfer in extra-low latency. In particular, a Tactile Internet based on software-defined networking (SDN) has been broadly deployed because of the proven benefits of SDN in flexible and programmable network management. However, the vulnerabilities of SDN also threaten the security of the Tactile Internet. Specifically, an SDN controller relies on the network status (provided by the underlying switches) to make network decisions, e.g., calculating a routing path to deliver data in the Tactile Internet. Hence, the attackers can compromise the switches to jeopardize the SDN and further attack Tactile Internet systems. For example, an attacker can compromise switches to launch distributed denial-of-service attacks to overwhelm the SDN controller, which will disrupt all the applications in the Tactile Internet. In pursuit of a more secure Tactile Internet, the problem of abnormal SDN switches in the Tactile Internet is analyzed in this article, including the cause of abnormal switches and their influences on different network layers. Then we propose an approach that leverages the messages sent by all switches to identify abnormal switches, which adopts a linear structure to store historical messages at a relatively low cost. By mapping each flow message to the flow establishment model, our method can effectively identify malicious SDN switches in the Tactile Internet and thus enhance its security.


2010 ◽  
Vol 44 (6) ◽  
pp. 122-132 ◽  
Author(s):  
Jack Harlan ◽  
Eric Terrill ◽  
Lisa Hazard ◽  
Carolyn Keen ◽  
Donald Barrick ◽  
...  

AbstractA national high-frequency radar network has been created over the past 20 years or so that provides hourly 2-D ocean surface current velocity fields in near real time from a few kilometers offshore out to approximately 200 km. This preoperational network is made up of more than 100 radars from 30 different institutions. The Integrated Ocean Observing System efforts have supported the standards-based ingest and delivery of these velocity fields to a number of applications such as coastal search and rescue, oil spill response, water quality monitoring, and safe and efficient marine navigation. Thus, regardless of the operating institution or location of the radar systems, emergency response managers, and other users, can rely on a common source and means of obtaining and using the data. Details of the history, the physics, and the application of high-frequency radar are discussed with successes of the integrated network highlighted.


1993 ◽  
Vol 18 (4) ◽  
Author(s):  
Paul W. Taylor

Abstract: The growth of the CanWest Global System as a third service in the Canadian Broadcasting System is examined with particular attention to its national infrastructure and non-network status. Through the internalization of international joint ventures and co-productions, CanWest Global might set a trend for Canadian broadcasters in a global, post-network, deregulated environment. Résumé: La croissance du Système Global CanWest en tant que troisième service dans le système de radiodiffusion canadien est éxaminée avec une attention particulière envers son infrastructure nationale et son statut de non-réseau. A travers l'internalisation des Entreprises Internationales Jointes et des co-productions, ça peut être un modèle pour les radiodiffuseurs canadiens dans un environnement mondial, dérégulé, et post-réseau.


2015 ◽  
Vol 6 (1) ◽  
pp. 119
Author(s):  
S.N.M.P. Simamora

ABSTRAK Mobile Ad-hoc Network (MANET) sebagai wireless local area network yang bersifat dinamis dalam hal pergerakan node berperan untuk mengkondisikan setiap terminal client sebagai backwarding/fowarding-devices. Dengan demikian kondisi topologi jaringan akan berubah seiring dengan perubahan posisi pada node-client. Hal ini tentu saja akan memberikan keuntungan yang baik pada client dalam segi fleksibilitas tempat, mengurangi biaya instalasi, reduksi penyediaan infrastruktur dan sifat temporary instalasi sesuai dengan kebutuhan yang diinginkan. Pada penelitian ini telah dilakukan pemodelan dan simulasi untuk menunjukkan algoritma routing-network, status node yang terlibat dalam MANET, dan perhitungan nilai QoS dari komunikasi-data yang dibangun antar node yang saling bertetangga. Hasilnya menunjukkan perubahan topologi jaringan mengalami perubahan seiring dengan perubahan skenario yang dibangkitkan secara random dan stokastik; dan perubahan topologi jaringan ini merepresentasikan perubahan posisi node dalam MANET saat membangun komunikasi-data dari node-sender ke node-receiver. Metode pengujian menggunakan teknik kuantitatif serta kondisi random direpresentasikan dengan pembangkitan bilangan random yang bekerja berdasar Distribusi Normal/Gauss. Algoritma SNetS yang digunakan telah dapat mengakomodir jumlah N-node, sehingga kondisi node-terminal, bagaimana status node, serta QoS yang didapatkan mendekati kondisi real. Kata kunci: mobile ad-hoc network, backwarding/fowarding-devices, model, topologi dinamis, random, algoritma SNetS.


10.33287/1195 ◽  
2019 ◽  
pp. 49-57
Author(s):  
Ю. І. Коломоєць

Russian political emigration from the beginning of its birth in the first half of the nineteenth century was constantly in search of forms and methods of struggle with royal power in the homeland. Detachment from Russia, the feeling of isolation that was inherent in emigration to the early twentieth century, were an important factor in the ongoing conflicts that took place in its environment. We note the conflicts between the «old» and the «young» emigration in the late 1860’s, between the Marxists and the populists of the 1880’s, between the revolutionary Marxists and the «economists» at the end of the 1890’s. All of these, as a rule, were due to excessive the ambitions of some leaders, the attempt to become the «rulers of ideas» for revolutionary youth, due to significant financial problems. In the list of these and similar conflicts there are events of 1870, when in the environment of political emigration there are two serious confrontations between the leader of anarchists M. Bakunin on the one hand and S. Nechaev or «Russian section of the First International» - on the other. These conflicts significantly influenced the situation in emigration, disorganized it, weakened the ability to fight the tsarist regime. They were accompanied by sharp accusations, searches for compromising materials, attempts to get support from leaders of the world revolutionary movement. The ambitions of young revolutionaries such as S. Nechaev or M. Utin were also connected with the attempt to take the main place among the emigrants, moving to the background of former leaders M. Bakunin, M. Ogarev, P. Lavrov. All this led to split in emigrant colonies, which consisted mainly of student youth. Violent discussions, accusations, boycotts became a hallmark of emigrant life. Basically, all these events took place in Switzerland, which at that time already became the center of not only Russian, but also international political emigration. Conflicts were directed at the political annihilation of the opponents, which subsequently resulted in the arrest and extradition to the Russian government of S. Nechaev in 1872, the cessation of the activities of the Russian Section of the First International and the return of M. Utin to Russia and the cessation of revolutionary activity in general. The positive side of these conflicts was the rallying of emigrants around their leaders, better information on the state of affairs in their environment, the development of new forms and methods of interaction and the strengthening of the role of revolutionaries from Russia itself.


Author(s):  
B.N Venu ◽  
K. B. Umesh ◽  
T. M. Gujanana

A livelihood comprises the capabilities, assets (social and material resources) and activities used by households for means of living. A livelihood index has been developed for agricultural labour households, based on the primary data. Six different sub-indices obtained are indicators of Economic, Food, Health, Education, Habitat and Social network Status for the rainfed regions of Bijapur district. Finally, a composite livelihood security index has been developed which indicates the livelihood status of migration and non-migration labour households in the study area. It is found that, migration households were moderately secured in terms of food security, economic security, education security and social network security. It was poor in case of health and habitat security. The composite livelihood security index (0.791) indicated that migration households were moderately secured in terms of livelihood. Non-migration labour households, the composite livelihood security index (0.645) indicated that households were less secured. In terms of food security and economic security, moderately secured and highly secured in education. In terms of health, habitat, social networks security non-migration labour households were less secured.


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