Title :
Intuitionistic fuzzy data warehouse and some analytical operations
Author :
Boyadzhieva, Diana ; Kolev, Boyan ; Netov, Nikolay
Author_Institution :
Fac. of Econ. & Bus. Adm., Sofia Univ. “St. Kliment Ohridski”, Sofia, Bulgaria
Abstract :
This paper presents a data warehouse implemented on the basis of a database management system that supports operations over intuitionistic fuzzy data. The source system for the Intuitionistic Fuzzy Data Warehouse (IFDW) is a learning management system that provides university courses and is used for blended learning. To analyze the intuitionistic fuzzy (IF) concepts we apply new method for comparison of IF data and implement new operators in the IF relational data model. Sample application of the method is provided through some queries towards a star schema of the IFDW. It stores the data from student´s performance on quiz questions and the related uncertainty in their own knowledge.
Keywords :
data warehouses; educational computing; educational courses; fuzzy set theory; uncertainty handling; analytical operations; database management system; intuitionistic fuzzy data warehouse; learning management system; star schema; uncertainty; university courses; Data warehouses; Data Warehouse; Intelligent learning.; Intuitionistic Fuzzy;
Conference_Titel :
Intelligent Systems (IS), 2010 5th IEEE International Conference
Conference_Location :
London
Print_ISBN :
978-1-4244-5163-0
Electronic_ISBN :
978-1-4244-5164-7
DOI :
10.1109/IS.2010.5548391
