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2005
IEEE

Version Management and Historical Queries in Digital Libraries

12 years 5 months ago
Version Management and Historical Queries in Digital Libraries
Historical information can be effectively preserved using XML and searched through powerful historical queries written in XQuery. Indeed, by storing the successive versions of a document in an incremental fashion, XML repositories and data warehouses can achieve (i) the efficient preservation of critical information, (ii) its representation using a temporally grouped data model and (iii) the ability of supporting historical queries on the evolution of documents and their contents using XQuery. The proposed approach can be applied uniformly to (a) XML document archives and (b) transaction-time databases published in XML and queried in XQuery. Our case studies include the UCLA course catalog, W3C Xlink standards, and the CIA WorldFact Book, besides relational databases. The experience described here and in [15, 16] suggests that current standards provide reasonable support for temporal applications at the logical level, whereas many challenges remain at the physical level.
Fusheng Wang, Carlo Zaniolo, Xin Zhou, Hyun J. Moo
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where TIME
Authors Fusheng Wang, Carlo Zaniolo, Xin Zhou, Hyun J. Moon
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