By Min Zhu, Ming Guo, YuJin Dai, LiTing Wang (auth.), Gang Shen, Xiong Huang (eds.)
The two-volume set CCIS 143 and CCIS one hundred forty four constitutes the refereed complaints of the foreign convention on digital trade, internet program, and communique, ECWAC 2011, held in Guangzhou, China, in April 2011. The 148 revised complete papers provided in either volumes have been rigorously reviewed and chosen from plenty of submissions. offering a discussion board for engineers, scientists, researchers in digital trade, internet software, and communique fields, the convention will placed distinct concentration additionally on facets reminiscent of e-business, e-learning, and e-security, clever info purposes, database and method safeguard, snapshot and video sign processing, trend reputation, details technological know-how, commercial automation, procedure keep watch over, user/machine platforms, protection, integrity, and safety, in addition to cellular and multimedia communications.
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Extra resources for Advanced Research on Electronic Commerce, Web Application, and Communication: International Conference, ECWAC 2011, Guangzhou, China, April 16-17, 2011. Proceedings, Part II
And unfortunately, digital literature is very fragile and need to data backup may be lost to compensate for their losses. As we explore the DTD (disk to disk backup) and DTT (disk to tape backup), we should understand what data to back up in digital libraries. , and all the data to carry out Internet-based resource services, in addition to backup the full-text database, the need to backup server, which the backup server to be involved in SUN Solaris, LINUX, Windows NT, Windows 2000 and other operating system platforms, and multiple machines running Microsoft SQL Server 2000 database and ORICAL.
Agate, K. R. Subramanian and C. Suneup belong to this kind. Former five researchers of them adopted hierarchical volume data structure to reorder 3D regular volume data field. Then the empty voxels which made no difference to display result are jumped over. C. Suneup defined a valuation which indicated the distance between empty voxels and non-empty voxels. Empty voxels are overleaped in the process of volume rendering by the valuation. This kind of algorithms reduces computational complexity in different extent, and improves rendering speed on the premise of maintaining image quality.
It can not accommodate a large number of data for long-term retention. Most of the digital library data needs long-term preservation, which will result, practical and technical personnel will force the library will eventually move the backup data transferred to the medium. In addition, starting from the security of data from viruses, hackers, security threats and natural disasters, also needs to be considered. File system is easy to be attacked, but the tape is a no-file system format, it determine born with immunity.
Advanced Research on Electronic Commerce, Web Application, and Communication: International Conference, ECWAC 2011, Guangzhou, China, April 16-17, 2011. Proceedings, Part II by Min Zhu, Ming Guo, YuJin Dai, LiTing Wang (auth.), Gang Shen, Xiong Huang (eds.)