A perspective from the Fuzzy Object Data Management Group (FODMG)

Cross, Valerie; Caluwe, Rita De; VanGyseghem, N.

doi:10.1109/fuzzy.1997.622800

Cited by 27 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, an object-oriented database modeling technique was proposed based on the level-2 fuzzy sets in de Tré and de Caluwe (2003), where the authors also discussed how the object Data Management Group (ODMG) data model can be generalized to handle fuzzy data in a more advantageous way. Also, the other efforts have been paid on the establishment of consistent framework for a fuzzy object-oriented database model based on the standard for the ODMG object data model (Cross et al 1997). More recently, how to manage fuzziness on conventional object-oriented platforms was introduced in Berzal et al (2007).…”

Section: Fuzzy Object-oriented Database Modelsmentioning

confidence: 99%

Fuzzy Sets and Fuzzy Database Models

Zhang

2013

Fuzzy XML Data Management

View full text Add to dashboard Cite

Information imprecision and uncertainty exist in many real-world applications, and for this reason fuzzy data modeling has been extensively investigated in various database models. In particular, Zadeh's fuzzy set theory has been identified as a successful technique for modeling imprecise and uncertain information in various database models. This has resulted in numerous contributions, mainly with respect to the popular fuzzy conceptual data models (fuzzy ER/ EER model, fuzzy UML data model, and etc.) and fuzzy logical database models (fuzzy relational database model, fuzzy object-oriented database model, and etc.). Also, it is shown that fuzzy set theory is very useful in Web-based business intelligence. Therefore, topics related to the modeling of fuzzy data are considered very interesting in XML since it is the current standard data representation and exchange format over the Web. In particular, to manage fuzzy XML data, it is necessary to integrate fuzzy XML and various fuzzy databases, and various fuzzy database models (fuzzy relational database model and fuzzy object-oriented database model) need to be used for mapping to and from the fuzzy XML models. Therefore, in this chapter, we mainly introduce several fuzzy database models, including fuzzy UML data model, fuzzy relational database model, and fuzzy object-oriented database model. Before that, we briefly introduce some notions of fuzzy set theory. IntroductionInformation is often imprecise and uncertain in many real-world applications, and many sources can contribute to the imprecision and uncertainty of data or information. Therefore, it has been pointed out that we need to learn how to manage data that is imprecise or uncertain (Dalvi and Suciu 2007).Unfortunately, the classical data management techniques such as databases and XML as introduced in Chap. 1 often suffer from their incapability of representing and manipulating imprecise and uncertain data information. On this basis, since

show abstract

Section: Fuzzy Object-oriented Database Modelsmentioning

confidence: 99%

Fuzzy Sets and Fuzzy Database Models

Zhang

2013

Fuzzy XML Data Management

View full text Add to dashboard Cite

show abstract

“…Recent efforts have been paid on the establishment of consistent framework for a fuzzy object-oriented model based on the standard for the object data management Ž . 25,26 group ODMG object data model. The design of fuzzy relational databases with the fuzzy ER model 2 has been investigated in Ref.…”

Section: Related Workmentioning

confidence: 99%

“…are extended. 5,16,23,25 However, less research has been done in modeling imprecision and uncertainty in the conceptual data model. It is particularly true in developing design methodologies for implementing the OODBs with imprecision and uncertainty.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design of fuzzy object-oriented databases using extended entity-relationship model

Zhang

et al. 2001

Int. J. Intell. Syst.

View full text Add to dashboard Cite

Entity-relationship ᎐extended entity-relationship models play a crucial role in the conceptual design of relational databases as well as object-oriented databases. Recently, several Ž . approaches have been proposed to enhance object-oriented databases OODBs using fuzzy set theory. In this paper, we introduce a fuzzy extended entity-relationship model to cope with imperfect as well as complex objects in the real world at a conceptual level. In particular, we provide the formal approach to mapping a fuzzy extended entity-relationship model to a fuzzy object-oriented database schema. ᮊ

show abstract

“…Yazici A. and Cinar [12] have introduced a conceptual data model by extending ExIFO to handle both complex and uncertain mainly, fuzzy objects and classes. Cross et al [13] have presented the initial research efforts to use ODMG-93 object data model standard as the basis for defining a fuzzy object data model since it is becoming a defacto standard and several object-oriented database vendors are currently releasing commercial products in compliance with this standard. Zadeh [14] has introduced …”

Section: Related Workmentioning

confidence: 99%

Object-Oriented Fuzzy Database Representation through UML

Kumar¹,

Dwivedi²

2016

IJCA

View full text Add to dashboard Cite

Due to the rapid use of various applications, the information is collected from these applications are vague and improper but the crisp information is an important part of any objectoriented database in the current scenario. As an uncertainty orvagueness in any database is represented through the fuzzy techniques, an object-oriented database is very efficient in handling that kind of fuzziness and complex database model. Therefore, the limited research work has done to designing and representing a fuzzy object-oriented database through UML, for that purpose, a domain of hospital has been taken for diagnosis the patient for various diseases with their uncertain input values (disease sign, symptoms, and pathology test result values). This will enhance the functioning of the developed software design on the present approach. A UML class & Sequence diagram are also designed for representing the complete process of registration and diagnosis of patients and design the fuzzy object-oriented database i.e. FOOD through the SQL server 2008.

show abstract

A perspective from the Fuzzy Object Data Management Group (FODMG)

Cited by 27 publications

References 11 publications

Fuzzy Sets and Fuzzy Database Models

Fuzzy Sets and Fuzzy Database Models

Conceptual design of fuzzy object-oriented databases using extended entity-relationship model

Object-Oriented Fuzzy Database Representation through UML

Contact Info

Product

Resources

About