TOWARDS A UNIFIED DOMAIN FOR FUZZY TEMPORAL DATABASES
M. C. Garrido, N. Marín, O. Pons
2009
Abstract
Temporal Databases (TDB) have as a primary aim to offer a common framework to those DB applications that need to store or handle temporal data of different nature or source, since they allow to unify the concept of time from the point of view of its meaning, its representation and its manipulation. At first sight, it may seem that incorporation of time to a DB is a direct and even simple task, but, on the contrary, it is a quite complex aim because time may be provided by different sources, with different granularities and meaning. The situation gets more complex when the time specification is not made in precise but in fuzzy terms, where together with the inherent problems of the time domain, we have to consider the imprecision factor. To deal with this problem, the first task to perform is to unify as much as possible the representation of time in order to be able to define the range and the semantics of the necessary operators to handle data of this type.
References
- Barro, S., Marín, R., Mira, J., and Patón, A. R. (1994). A model and a language for the fuzzy representation and handling of time. Fuzzy Sets Syst., 61(2):153-175.
- Bettini, C., Wang, X. S., and Jajodia, S. (1998). A general framework for time granularity and its application to temporal reasoning. Annals of Mathematics and Artificial Intelligence, 22(1-2):29-58.
- Chountas, P. and Petrounias, I. (2000). Modelling and representation of uncertain temporal information. Requirements Eng., 5:144-156.
- Clifford, J. and Rao, A. (1987). A simple, general structure for temporal domains. In Temporal Aspects in Information Systems, pages 17-28.
- de Feriét, J. K. (1973). La theorie generaliseéde l'information et le mesure subjetive de l'information. In de Fèriet, K. and Picard., C., editors, Lecture notes in Math: Théories de l'information., volume 398, pages 1-28. Springer-Verlag.
- Dubois, D. and Prade, H. (1987). Fuzzy numbers: An overview. In Bezdek, J., editor, Analysis of Fuzzy Information, Vol.I: Mathematics and Logic, pages 3-39. CRC Press, Boca Raton, FL.
- Elmasri, R. and Wuu, G. T. J. (1990). A temporal model and query language for er databases. In Proceedings of the Sixth International Conference on Data Engineering, pages 76-83, Washington, DC, USA. IEEE Computer Society.
- Goguen, J. (1967). L-fuzzy sets. Journ. of Math. Anal. and Applications, 18:145-174.
- González, A., Pons, O., and Vila, M. A. (1999). Dealing with uncertainty and imprecision by means of fuzzy numbers. Int. J. Approx. Reasoning, 21(3):233-256.
- Medina, J. M., Pons, O., and Vila, M. A. (1994). Gefred: a generalized model of fuzzy relational databases. Inf. Sci. Inf. Comput. Sci., 76(1-2):87-109.
- Medina, J. M., Vila, M. A., Cubero, J. C., and Pons, O. (1995). Towards the implementation of a generalized fuzzy relational database model. Fuzzy Sets Syst., 75(3):273-289.
- Yager, R. (1981). Measurement of properties on fuzzy sets and possibility distributions. In Klement, E., editor, 3rd Intern. Seminar on Fuzzy Set Theory, pages 211- 222. Johannes Keplas Univ. Liuz.
Paper Citation
in Harvard Style
C. Garrido M., Marín N. and Pons O. (2009). TOWARDS A UNIFIED DOMAIN FOR FUZZY TEMPORAL DATABASES . In Proceedings of the 11th International Conference on Enterprise Information Systems - Volume 3: ICEIS, ISBN 978-989-8111-86-9, pages 355-358. DOI: 10.5220/0001982603550358
in Bibtex Style
@conference{iceis09,
author={M. C. Garrido and N. Marín and O. Pons},
title={TOWARDS A UNIFIED DOMAIN FOR FUZZY TEMPORAL DATABASES},
booktitle={Proceedings of the 11th International Conference on Enterprise Information Systems - Volume 3: ICEIS,},
year={2009},
pages={355-358},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001982603550358},
isbn={978-989-8111-86-9},
}
in EndNote Style
TY - CONF
JO - Proceedings of the 11th International Conference on Enterprise Information Systems - Volume 3: ICEIS,
TI - TOWARDS A UNIFIED DOMAIN FOR FUZZY TEMPORAL DATABASES
SN - 978-989-8111-86-9
AU - C. Garrido M.
AU - Marín N.
AU - Pons O.
PY - 2009
SP - 355
EP - 358
DO - 10.5220/0001982603550358