Quantifiers in the formulation of multiple objective decision functions
Information Sciences: an International Journal
Fuzzy sets, uncertainty, and information
Fuzzy sets, uncertainty, and information
Measurement of membership functions and their acquisition
Fuzzy Sets and Systems - Special memorial volume on foundations of fuzzy reasoning
Fuzzy systems theory and its applications
Fuzzy systems theory and its applications
Aggregation operators and fuzzy systems modeling
Fuzzy Sets and Systems
Research problems in data warehousing
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
Adapting materialized views after redefinitions
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
Incremental maintenance of views with duplicates
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
Implementing data cubes efficiently
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
A query language for multidimensional arrays: design, implementation, and optimization techniques
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Fuzzy set theory—and its applications (3rd ed.)
Fuzzy set theory—and its applications (3rd ed.)
Fuzzy Sets and Systems
An overview of data warehousing and OLAP technology
ACM SIGMOD Record
Improved query performance with variant indexes
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Maintenance of data cubes and summary tables in a warehouse
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
On-line warehouse view maintenance
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Caching multidimensional queries using chunks
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Simultaneous optimization and evaluation of multiple dimensional queries
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Communications of the ACM
Logical representation and computation of optimal decisions in a qualitative setting
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Using possibilistic logic for modeling qualitative decision: ATMS-based algorithms
Fundamenta Informaticae - Special issue on soft computing
Principles and Applications
Fuzzy Sets and Systems: Theory and Applications
Fuzzy Sets and Systems: Theory and Applications
Foundations of Fuzzy Systems
Complex Aggregation at Multiple Granularities
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
A Rule-Based Data Manipulation Language for OLAP Systems
DOOD '97 Proceedings of the 5th International Conference on Deductive and Object-Oriented Databases
Modeling Multidimensional Databases
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Multiple View Consistency for Data Warehousing
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Physical Database Design for Data Warehouses
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Array-Based Evaluation of Multi-Dimensional Queries in Object-Relational Databases Systems
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Graph Structured Views and Their Incremental Maintenance
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Encoded Bitmap Indexing for Data Warehouses
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tab, and Sub-Total
ICDE '96 Proceedings of the Twelfth International Conference on Data Engineering
Selection of Views to Materialize in a Data Warehouse
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Incremental Organization for Data Recording and Warehousing
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
nD-SQL: A Multi-Dimensional Language for Interoperability and OLAP
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Computing Iceberg Queries Efficiently
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Storage Estimation for Multidimensional Aggregates in the Presence of Hierarchies
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
On the Computation of Multidimensional Aggregates
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Answering Queries with Aggregation Using Views
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Multiple-View Self-Maintenance in Data Warehousing Environments
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
A Rule-Based CQL for 2-Dimensional Tables
CDB '97 Second International Workshop on Constraint Database Systems, Constraint Databases and Their Applications
A Framework for Designing Materialized Views in Data Warehousing Environment
ICDCS '97 Proceedings of the 17th International Conference on Distributed Computing Systems (ICDCS '97)
SQLf: a relational database language for fuzzy querying
IEEE Transactions on Fuzzy Systems
Towards a spatial multidimensional model
Proceedings of the 8th ACM international workshop on Data warehousing and OLAP
Orness and parameterized RIM quantifier aggregation with OWA operators: A summary
International Journal of Approximate Reasoning
Online mining of fuzzy multidimensional weighted association rules
Applied Intelligence
Data mining by attribute generalization with fuzzy hierarchies in fuzzy databases
Fuzzy Sets and Systems
Negotiation as creative social interaction using concept hierarchies
IPMU'10 Proceedings of the Computational intelligence for knowledge-based systems design, and 13th international conference on Information processing and management of uncertainty
The computation of semantic data cube
GCC'05 Proceedings of the 4th international conference on Grid and Cooperative Computing
Searching semantic data warehouses: models, issues, architectures
Proceedings of the 2nd International Workshop on Semantic Search over the Web
A multidimensional data model using the fuzzy model based on the semantic translation
Information Systems Frontiers
| Hi-index | 0.00 |
A data warehouse integrates large amounts of extracted and summarized data from multiple sources for direct querying and analysis. While it provides decision makers with easy access to such historical and aggregate data, the real meaning of the data has been ignored. For example, "whether a total sales amount 1,000 items indicates a good or bad sales performance" is still unclear. From the decision makers' point of view, the semantics rather than raw numbers which convey the meaning of the data is very important. In this paper, we explore the use of fuzzy technology to provide this semantics for the summarizations and aggregates developed in data warehousing systems. A three layered data warehouse semantic model, consisting of quantitative (numerical) summarization, qualitative (categorical) summarization, and quantifier summarization, is proposed for capturing and explicating the semantics of warehoused data. Based on the model, several algebraic operators are defined. We also extend the SQL language to allow for flexible queries against such enhanced data warehouses.