Angelica Urrutia

Angelica Urrutia Sepúlveda, PhD, is an associate professor at the Maule Catholic University, Chile, in the computer science department. She is member of the Chilean Computer Science Society and RITOS-2 (Red iberoamericana de tecnologías del software para la década del 2000) working group of CYTED, and the founder and president of the Chilean Workshop on Databases. In 2003, she obtained her Ph.D. in computer science at the Castilla-La Mancha University, Spain. Dr. Sepúlveda has authored several original scientific papers on fuzzy databases and information systems.

Publications

Fuzzy Databases: Modeling, Design and Implementation
Fuzzy Databases: Modeling, Design and Implementation
José Galindo, Angelica Urrutia, Mario Piattini. © 2006. 321 pages.
Fuzzy Databases: Modeling, Design and Implementation focuses on some semantic aspects which have not been studied in previous works and extends the EER model with fuzzy...
Introduction to Fuzzy Logic
Introduction to Fuzzy Logic
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 44 pages.
This book mixes concepts of different areas of knowledge or technologies, such as databases, system architecture design, SQL language, programming concepts and logic...
Fuzzy Database Approaches
Fuzzy Database Approaches
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 15 pages.
Both the problem of representation and the treatment of imprecise information have been widely discussed. Many references can be found in the corresponding bibliography....
State of the Art in Fuzzy Database Modeling
State of the Art in Fuzzy Database Modeling
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 15 pages.
On occasion, the term imprecision embraces several meanings that we should differentiate. For example, as you saw in Chapter II, the information you have may be incomplete or...
FuzzyEER: Main Characteristics of a Fuzzy Conceptual Modeling Tool
FuzzyEER: Main Characteristics of a Fuzzy Conceptual Modeling Tool
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 70 pages.
In this chapter we present the FuzzyEER Model, which is an extension of the EER Model with fuzzy semantics and notations. The Entity-Relationship Model was introduced by Chen...
Representation of Fuzzy Knowledge in Relational Databases: FIRST-2
Representation of Fuzzy Knowledge in Relational Databases: FIRST-2
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 26 pages.
The Relational Model was developed by E.F. Codd of IBM and published in 1970. It is currently the most used and has been a milestone in the history of databases, revolutionizing...
Mapping Fuzzy EER Model Concepts to Relations
Mapping Fuzzy EER Model Concepts to Relations
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 8 pages.
This chapter shows the transformation of the FuzzyEER model to a logical design by using relational databases. The FuzzyEER-to-Relational mapping algorithm is based on the...
FSQL: A Fuzzy SQL for Fuzzy Databases
FSQL: A Fuzzy SQL for Fuzzy Databases
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 80 pages.
The SQL language was essentially developed by Chamberlin and Boyce (1974) and Chamberlin et al. (1976). In 1986, the American National Standard Institute (ANSI) and the...
Some Applications of Fuzzy Databases With FSQL
Some Applications of Fuzzy Databases With FSQL
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 21 pages.
The applications of databases are immense. In almost all of them, the advantages of the fuzzy databases can be applied, exploiting their innovative features and possibilities...
Brief Summary and Future Trends
Brief Summary and Future Trends
Jose Galindo, Angelica Urrutia, Mario Piattini. © 2006. 2 pages.
Fuzzy logic (Chapter I) allows us to bring the operation of information systems closer to the working methods of humans. People frequently deal with fuzzy concepts (for example...