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The emergence of large-scale dynamic sets in real applications creates stringent requirements for approximate set representation structures: 1) the capacity of the set representation structures should support flexibly extending or reducing to cope with dynamically changing of set size; 2) the set representation structures should support reliable delete operation. Existing techniques for approximate...
In order to relieve reliability problem caused by technology scaling, LDPC codes have been widely applied in flash memories to provide high error correction capability. However, LDPC read performance slowdown along with data retention largely weakens the access speed advantage of flash memories. This paper considers to apply the concept of refresh, that were used for flash lifetime improvement, to...
In the cloud environment, virtual machine monitor (VMM) enables multiple virtual machines (VM) running simultaneously to share the same physical resources, such as disk and its on-board disk write-cache. However, for the reasons of high reliability, some virtual machines need to adopt write-through policy for disk write-cache, which is a key component to improve system's I/O performance. This causes...
This paper mainly focuses on the technical factors of the website targeted at shopping mall websites in Korea and China. There are a total of six technical factors, and we conducted an empirical study on how those six factors are different based on the shopping mall websites of two different countries. Statistical data for an empirical study targeted at undergraduate students in Korea and China, and...
Server consolidation using virtualization technologies allow cloud-scale datacenters to improve resource utilization and energy efficiency. However, most existing consolidation strategies solely focused on balancing the tradeoff between service-level-agreements (SLAs) desired by cloud applications and energy costs consumed by hosting servers. With the presence of fluctuating workloads in datacenters,...
Peer-to-Peer SIP is proposed to leverage Peer-to-Peer computing to control multimedia sessions in a decentralized manner. A lot of companies can be benefited if conventional SIP environment does not require the configuration and maintenance of central servers. However, existing P2PSIP systems put too much emphasis on the decentralization of SIP elements and the briefness of distribution. To some extent,...
This paper provides a new data fusion mechanism based on regulation and reliability to solve the data conflict problems of multi-source heterogeneous data fusion in traffic information engineering. This mechanism evaluates each data source on historical reliability and data source QoS (Quality of Service), and then gives its reliability result. Userspsila reliability on the data source is calculated...
Virtualization technology (VT) being an re-emerging technology is becoming a hot topic for recently years. It is a decoupling technique that separating system software from hardware platform, while making applications to run pervasively. Many academic institutes and research lab from industries has devoted great research efforts in various aspects. In 2007, Chinese Ministry of Science and Technology...
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