Book Chapter10.1007/3-540-36233-9_3
Adding Valid Time to XPath
Shuohao Zhang,Curtis E. Dyreson +1 more
- 16 Dec 2002
- pp 29-42
41
TL;DR: This paper extends the XPath data model and query language with an axis to access nodes in a valid-time view of the valid time for a node and can reuse nontemporal XPath to extract the desired information within avalid-time axis.
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Abstract: In this paper we extend the XPath data model and query language to include valid time. XPath is a language for specifying locations within an XML document. We extend XPath's data model by adding to each node a list of disjoint intervals or instants that represents the valid time. The valid time for a node is constrained to be a subset of the valid time for a node's parent. We extend the XPath query language with an axis to access nodes in a valid-time view of the valid time for a node. The view is a calendar-specific formatting of the valid time in XML. By rendering the time in XML, we can reuse nontemporal XPath to extract the desired information within a valid-time axis. The extension is fully backwards-compatible with XPath.
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Citations
•Journal Article
A data model for temporal XML documents
TL;DR: The proposed model extends the XPath data model, and is capable of representing change histories of XML documents, and various alternative approaches to the physical implementation of the model are presented.
99
•Journal Article
XBiT: An XML-based bitemporal data model
Fusheng Wang,Carlo Zaniolo +1 more
TL;DR: In this paper, the authors show that valid-time, transaction-time and bitemporal databases can be viewed in XML using temporally-grouped data models and that complex historical queries, that would be very difficult to express in SQL on relational tables, can now be easily expressed in standard XQuery on such XML-based representations.
50
XBiT: An XML-Based Bitemporal Data Model
Fusheng Wang,Carlo Zaniolo +1 more
- 08 Nov 2004
TL;DR: It is shown that valid-time, transaction- time, and bitemporal databases can be naturally viewed in XML using temporally-grouped data models and complex historical queries can now be easily expressed in standard XQuery on such XML-based representations.
48
ArchIS: an XML-based approach to transaction-time temporal database systems
Fusheng Wang,Carlo Zaniolo,Xin Zhou +2 more
- 01 Nov 2008
TL;DR: The ArchIS system is presented, which achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards, and provides critical support to emerging application areas such as RFID.
An Annotated Bibliography on Temporal and Evolution Aspects in the World Wide Web
Fabio Grandi
- 01 Jan 2003
TL;DR: The present bibliography reflects interest by collecting the references concerning the handling of time and evolution issues in World Wide Web research by following several fortunate bibliographies on time-varying information.
References
•Journal Article
Maintaining knowledge about temporal intervals
TL;DR: An interval-based temporal logic is introduced, together with a computationally effective reasoning algorithm based on constraint propagation, which is notable in offering a delicate balance between space and time.
7.9K
Maintaining knowledge about temporal intervals
TL;DR: In this paper, an interval-based temporal logic is introduced, together with a computationally effective reasoning algorithm based on constraint propagation, which is notable in offering a delicate balance between time and space.
The consensus glossary of temporal database concepts — February 1998 version
Christian S. Jensen,Curtis E. Dyreson,Michael H. Böhlen,James Clifford,Ramez Elmasri,Shashi K. Gadia,Fabio Grandi,Patrick J. Hayes,Sushil Jajodia,Wolfgang Käfer,Nick Kline,Nikos A. Lorentzos,Yannis Mitsopoulos,Angelo Montanari,Daniel Nonen,Elisa Peressi,Barbara Pernici,John F. Roddick,Nandlal L. Sarda,Maria Rita Scalas,Arie Segev,Richard T. Snodgrass,Michael D. Soo,Abdullah Uz Tansel,Paolo Tiberio,Gio Wiederhold +25 more
TL;DR: This document1 contains definitions of a wide range of concepts specific to and widely used within temporal databases, as well as discussions of the adopted names.
300
The Consensus Glossary of Temporal Database Concepts - February 1998 Version.
Christian S. Jensen,Curtis E. Dyreson,Michael H. Böhlen,James Clifford,Ramez Elmasri,Shashi K. Gadia,Fabio Grandi,Patrick J. Hayes,Sushil Jajodia,Wolfgang Käfer,Nick Kline,Nikos A. Lorentzos,Yannis Mitsopoulos,Angelo Montanari,Daniel Nonen,Elisa Peressi,Barbara Pernici,John F. Roddick,Nandlal L. Sarda,Maria Rita Scalas,Arie Segev,Richard T. Snodgrass,Michael D. Soo,Abdullah Uz Tansel,Paolo Tiberio,Gio Wiederhold +25 more
- 01 Jan 1997
TL;DR: In this article, a wide range of concepts specific to and widely used within temporal databases are defined, and explanations of concepts as well as discussions of the adopted names are provided. But the definitions of concepts are not discussed.
287
•Proceedings Article
Temporal Database Bibliography Update.
Vassilis J. Tsotras,Anil Kumar +1 more
- 01 Jan 1996
103
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