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2008 Eighth International Conference on Intelligent Systems Design and Applications
A Fuzzy Temporal Model and Query Language for FTER Databases
November 26-November 28
ISBN: 978-0-7695-3382-7
| ASCII Text | x | ||
| Liguo Deng, Zhiheng Liang, Yong Zhang, "A Fuzzy Temporal Model and Query Language for FTER Databases," Intelligent Systems Design and Applications, International Conference on, vol. 3, pp. 77-82, 2008 Eighth International Conference on Intelligent Systems Design and Applications, 2008. | |||
| BibTex | x | ||
| @article{ 10.1109/ISDA.2008.50, author = {Liguo Deng and Zhiheng Liang and Yong Zhang}, title = {A Fuzzy Temporal Model and Query Language for FTER Databases}, journal ={Intelligent Systems Design and Applications, International Conference on}, volume = {3}, year = {2008}, isbn = {978-0-7695-3382-7}, pages = {77-82}, doi = {http://doi.ieeecomputersociety.org/10.1109/ISDA.2008.50}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - CONF JO - Intelligent Systems Design and Applications, International Conference on TI - A Fuzzy Temporal Model and Query Language for FTER Databases SN - 978-0-7695-3382-7 SP77 EP82 A1 - Liguo Deng, A1 - Zhiheng Liang, A1 - Yong Zhang, PY - 2008 KW - ER model KW - fuzzy numbers KW - fuzzy temporal query KW - fuzzy temporal selection VL - 3 JA - Intelligent Systems Design and Applications, International Conference on ER - | |||
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ISDA.2008.50
In this paper, we propose a temporal extension to an extended ERT model and extend database temporal models to handle the fuzzy numbers. The concept of lifespan for entities and relationships is incorporated in the FTER model. We specify a fuzzy temporal query and update temporal language which is an extension from the TQuel language. The concepts of fuzzy temporal expressions, fuzzy temporal selection, fuzzy temporal join and fuzzy temporal projection are introduced, and their use in the query language is illustrated. We also discuss reducibility of the semantics to the language when applied to a static database and define the semantics of update operations.
Index Terms:
ER model, fuzzy numbers, fuzzy temporal query, fuzzy temporal selection
Citation:
Liguo Deng, Zhiheng Liang, Yong Zhang, "A Fuzzy Temporal Model and Query Language for FTER Databases," isda, vol. 3, pp.77-82, 2008 Eighth International Conference on Intelligent Systems Design and Applications, 2008
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