scholarly journals Representing the UMLS as an Object-oriented Database: Modeling Issues and Advantages

2000 ◽  
Vol 7 (1) ◽  
pp. 66-80 ◽  
Author(s):  
G. Huanying ◽  
P. Yehoshua ◽  
G. James ◽  
H. Michael ◽  
L. Li-min ◽  
...  
Keyword(s):  
Object Oriented ◽  
Database Modeling ◽  
Object Oriented Database

New SQL Standard in Database Modeling

2005 ◽  
pp. 2116-2121 ◽  
Author(s):  
Eric Pardede ◽  
J. Wenny Rahayu ◽  
David Taniar
Keyword(s):  
Relational Database ◽  
Real World ◽  
Complex Structure ◽  
Object Oriented ◽  
Structured Data ◽  
Database Applications ◽  
Database Modeling ◽  
Relational Data Model ◽  
Structured Objects ◽  
Object Oriented Database

Relational Database (RDB) is arguably the most widely used repository for database applications. Since the 1970s, we have witnessed the relational data model, from which the RDB is originated, evolving. The progress aims to answer the increasing requirement in database applications. One of them is the requirement to deal with complex structure of real world problems. Unlike its Object-Oriented Database (OODB) counterpart, the RDB, for example, does not have facilities to store large structured objects, semi-structured data, and so forth.

An Overview of Fuzzy Approaches to Flexible Database Querying

2009 ◽  
pp. 135-156 ◽  
Author(s):  
Slawomir Zadrozny ◽  
Guy de Tré ◽  
Rita de Caluwe ◽  
Janusz Kacprzyk
Keyword(s):  
Set Theory ◽  
Fuzzy Set ◽  
Fuzzy Set Theory ◽  
Object Oriented ◽  
Database Systems ◽  
Database Modeling ◽  
Database Querying ◽  
Object Oriented Database ◽  
Flexible Querying ◽  
Natural Way

In reality, a lot of information is available only in an imperfect form. This might be due to imprecision, vagueness, uncertainty, incompleteness, or ambiguities. Traditional database systems can only adequately cope with perfect data. Among others, fuzzy set theory has been applied to deal with imperfections of data in a more natural way and to enhance the accessibility of databases. In this chapter, we give an overview of main trends in the research on flexible querying techniques that are based on fuzzy set theory. Both querying techniques for traditional databases as well as querying techniques for fuzzy databases are described. The discussion comprises both the relational and the object-oriented database modeling approaches.

An Overview of Fuzzy Approaches to Flexible Database Querying

2011 ◽  
pp. 34-54 ◽  
Author(s):  
Slawomir Zadrozny ◽  
Guy de Tré ◽  
Rita de Caluwe ◽  
Janusz Kacprzyk
Keyword(s):  
Set Theory ◽  
Fuzzy Set ◽  
Fuzzy Set Theory ◽  
Object Oriented ◽  
Database Systems ◽  
Database Modeling ◽  
Database Querying ◽  
Object Oriented Database ◽  
Flexible Querying ◽  
Natural Way

In reality, a lot of information is available only in an imperfect form. This might be due to imprecision, vagueness, uncertainty, incompleteness, or ambiguities. Traditional database systems can only adequately cope with perfect data. Among others, fuzzy set theory has been applied to deal with imperfections of data in a more natural way and to enhance the accessibility of databases. In this chapter, we give an overview of main trends in the research on flexible querying techniques that are based on fuzzy set theory. Both querying techniques for traditional databases as well as querying techniques for fuzzy databases are described. The discussion comprises both the relational and the object-oriented database modeling approaches.

Efficient Storage of Large Volume Spatial and Temporal Point-Data in an Object-Oriented Database

2002 ◽  
Author(s):  
David V. Oliver ◽  
Roy V. Ladner ◽  
Frank P. McCreedy ◽  
Ruth A. Wilson
Keyword(s):  
Large Volume ◽  
Object Oriented ◽  
Efficient Storage ◽  
Point Data ◽  
Object Oriented Database
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