ReCAP: A distributed CAPTCHA service at the edge of the network to handle server overload

2017 ◽  
Vol 29 (4) ◽  
pp. e3187 ◽  
Author(s):  
Ahmad T. Al-Hammouri ◽  
Zaid Al-Ali ◽  
Basheer Al-Duwairi
Keyword(s):  
Server Overload

scholarly journals The Communication in Distributed Client - Server Systems Used for Management of Flexible Manufacturing Systems

2011 ◽  
Vol 6 (2) ◽  
pp. 297
Author(s):  
Valeriu Lupu ◽  
Doru E. Tiliute
Keyword(s):  
Neural Networks ◽  
Flexible Manufacturing ◽  
Manufacturing Systems ◽  
Labour Productivity ◽  
Necessary Condition ◽  
Client Server ◽  
Labour Productivity Growth ◽  
Economic Progress ◽  
The Neural Networks ◽  
Server Overload

<p>Labour productivity growth is a necessary condition for social and economic progress, in general, and to overcome the economic crisis facing most of the world, in special. <br />Applying innovative solutions, based on the ITC, is one of the straight ways for achieving that objective, both important and necessary. This paper presents a software solution applicable to industrial production based on numerically controlled machines. It involves a distributed client - server communication system, combined with MLP neural networks for the recognition of the 2D industrial objects, viewed from any angle. The information on prismatic and rotational parts to be processed by numerically controlled machine, are stored on a database server together with the corresponding processing programs. The client applications run on the numerically controlled machines and on the robots serving groups of machines. While the machines are fixed, the robots are mobile and can move from a machine to another. As a novelty of the proposed solution, in some well defined situations, the clients are allowed to change messages among them, in order to avoid the server overload. The neural networks are used to help robots to recognize the parts before and during manipulation.</p>

scholarly journals Balanceamento de Tráfego entre Servidores de Vídeo MPEG-DASH em Redes Definidas por Software

2019 ◽  
Author(s):  
Edenilson Jônatas dos Passos ◽  
Adriano Fiorese
Keyword(s):  
Quality Of Experience ◽  
Optimal Choice ◽  
Network Congestion ◽  
End User ◽  
Video Distribution ◽  
Ip Network ◽  
Bandwidth Limitation ◽  
Streaming Service ◽  
Server Overload

With popularization of video streaming service in recent years, new video distribution technologies have been created. Currently, one of the most promising ones is the Moving Picture Expert Group Dynamic Adaptive Streaming over HTTP or MPEG-DASH. However, with the limitation of the TCP/IP network structure, the end user quality of experience may be affected. This is due to several factors such as network congestion, bandwidth limitation, non-optimal choice of a content provider server and server overload. This article presents a load-balancing solution between MPEG-DASH video servers based on Software Defined Networks, using as a balancing metric the throughput of the content server.

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