Extending object-oriented databases for fuzzy information modeling

M., Z.; Zhang, W. J.; Y., W.

doi:10.1016/s0306-4379(03)00038-3

Cited by 82 publications

(53 citation statements)

References 23 publications

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“…Ma et al (2004) proposed an extended object-oriented database model to handle imperfect as well as complex objects in the real world based on possibility distribution and the semantic measure of fuzzy data. In their model, some major notions in object-oriented databases such as objects, classes, objects-classes relationships, subclass/superclass, and multiple inheritances were extended under fuzzy information environment.…”

Section: Related Workmentioning

confidence: 99%

A structure to support queries in object-oriented database using fuzzy XML tags

Fahimian¹,

Harounabadi²

2014

10.5267/j.msl

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Every day, we deal with the information, which are under uncertainty and managing this type of information with classical database systems brings a disadvantageous loss of data semantics along. Therefore, advanced database modeling techniques are necessary. Entrance of object orienting concept in databases helps relational database gradually use object oriented database in various fields. With the advances in this field, simple objects alone are not able to include complex data types and complex objects are necessary. On the other hand, for solving the problem of fuzzy data, several methods have been presented. One of these methods for modeling databases is an approach, which couples object-oriented database modeling with fuzzy logic. In this research, we observe the compilation of XML and fuzzy to represent a suitable approach for queries in object-oriented databases. In this paper, by combining sql and fuzzy XML tags, a language and independent database for storing and retrieving queries is prepared. We study database queries in two forms of simple and complex. In the form of complex, we use conjunctive queries.

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Section: Related Workmentioning

confidence: 99%

A structure to support queries in object-oriented database using fuzzy XML tags

Fahimian¹,

Harounabadi²

2014

10.5267/j.msl

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“…Due to the fact that our mind acts in another way, in the beginning, we need to create new logics and multi-value innovations and fuzzy logic is one of them. Entering fuzzy logic in databases, especially object oriented database, opened a new horizon to database designers (Ma et al, 2004).…”

Section: Fuzzy Setsmentioning

confidence: 99%

“…Since object oriented database has not been able to support existing non-definite data for the real-world applications, fuzzy concepts have recently been also added to these databases to let us have a kind of contact with a set of fuzzy objects through object oriented fuzzy databases (Ma et al, 2004). …”

Section: Introductionmentioning

confidence: 99%

A new weighted fuzzy grammar on object oriented database queries

Pourbehzadi¹,

Haroonabadi²,

Sadeghzadeh³

2012

MSL

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The fuzzy object oriented database model is often used to handle the existing imprecise and complicated objects for many real-world applications. The main focus of this paper is on fuzzy queries and tries to analyze a complicated and complex query to get more meaningful and closer responses. The method permits the user to provide the possibility of allocating the weight to various parts of the query, which makes it easier to follow better goals and return the target objects.

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“…It is possible that it is unknown for certain if two class instances respectively belonging to the associated classes have the given association relationship, although this association relation ship must occur in these two classes [21].…”

Section: Fuzzy Associationmentioning

confidence: 99%