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With the rapid development of mobile Internet technology, mobile phones and other mobile terminal products have been widely popular. General public who are not the professional journalist produce more and more pictures, video and other media content anywhere and anytime so that the user-generated content plays an more important role in the news reporting, especially in emergencies. As not having a...
Real-time content delivery services such as live media streaming, news casting and real-time event subscription/publication systems have become popular in recent years. Unlike traditional content delivery applications, real-time content delivery requires live content to be processed and delivered to end users in a timely and efficient manner. Furthermore, as both content producers and consumers may...
NoSQL (Not only SQL) data stores become a vital component in many big data computing platforms due to its inherent horizontal scalability. HBase is an open-source distributed NoSQL store that is widely used by many Internet enterprises to handle their big data computing applications (e.g. Facebook handles millions of messages each day with HBase). Optimizations that can enhance the performance of...
How to reduce the transmission latency is a main concern in the context of Mobile Visual Search (MVS). Transmitting extremely compacted visual descriptor in a progressive manner is the start-of-art solution. In this paper, we present a novel MVS system following the client-server architecture. To reduce the transmission latency, the inquiry image is represented by a set of hash bits, which are then...
Cloud computing is a paradigm that harnesses massive resource capacity of data centers to support applications in a scalable, flexible, reliable and cost-effective manner. Despite its recent success and rapid adoption in the IT industry, recent literature has shown that effective workload management in cloud computing environments remains to be a difficult challenge. A key reason behind this difficulty...
Cloud computing has become a cost-effective model for deploying online services in recent years. To improve the Quality-of-Service (QoS) of the provisioned services, recently a number of proposals have advocated to provision both guaranteed server and network resources in the form of Virtual Data Centers (VDCs). However, existing VDC scheduling algorithms have not fully considered the reliability...
Large-scale online service providers have been increasingly relying on geographically distributed cloud infrastructures for service hosting and delivery. In this context, a key challenge faced by service providers is to determine the locations where service applications should be placed such that the hosting cost is minimized while key performance requirements (e.g., response time) are ensured. Furthermore,...
Large-scale online service providers have been increasingly relying on geographically distributed cloud infrastructures for service hosting and delivery. In this context, a key challenge faced by service providers is to determine the locations where service applications should be placed such that the hosting cost is minimized while key performance requirements (e.g. response time) are assured. Furthermore,...
This article put forward two different transfer strategies which centered with Web container to solve the design problems of B/S model industrial control system. To achieve this we use Java Web to design the Web server, use Tomcat as the container, write the programs for lower machine with VC++, and use IE6.0/7.0 as the Browser .Through the detailed discussion and the comparison, we get the useful...
In recent years, the agricultural information network construction has made a great progress in China. With the level of network openness improved, the probability of network attacked is increasing. So, it needs a higher demand for network stability and security. Through analyzing the status quo of agricultural information network security and network security defensive strategy architecture, this...
With the development of internet technology, the entire amount of data on the internet has shown the explosive growth. Some researchers have paid their attention to find an effective way to store and manage these data. In this paper, we introduce a load rebalancing algorithm to solve the load balancing problem among all chunk servers(compute nodes) in the distributed file system; it also ensures that...
In this paper, we propose a new approach for the development of load control policies in autonomic multitier systems. We control system load in a completely new way compared to existing policies: we leverage on the autocorrelation of service times and show that autocorrelation can be used to forecast future service requirements of requests and adaptively control system load. To the best of our knowledge,...
The scarcity of publicly available storage workload traces of production servers impairs characterization, modeling research, and development efforts across the storage industry. Twelve sets of storage traces from a diverse set of Microsoft Corporation production servers were captured using ETW (event tracing for windows) instrumentation. Windows server 2008 dramatically increases the breadth and...
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