Since the late 1970s, relational database technology has been adopted by most
organizations to store their essential data. However, nowadays, the needs of these …

In this paper, we present ATHENA, an ontology-driven system for natural language querying
of complex relational databases. Natural language interfaces to databases enable users …

Featuring contributions from major technology vendors, industry consortia, and government
and private research establishments, the Industrial Communication Technology Handbook …

On-line analytical processing (OLAP) systems considerably improve data analysis and are
finding wide-spread use. OLAP systems typically employ multidimensional data models to …

Multidimensional database technology is a key factor in the interactive analysis of large
amounts of data for decision making purposes. In contrast to previous technologies, these …

With the recent and continuing advances in areas such as wireless communications and
positioning technologies, mobile, location-based services are becoming possible.% Such …

The development of a data warehouse (DW) system is based on a conceptual
multidimensional model, which provides a high level of abstraction in accurately and …

Abstract The Semantic Web enables organizations to attach semantic annotations taken
from domain and application ontologies to the information they generate. The concepts in …

Abstract On-Line Analytical Processing (OLAP) enables analysts to gain insight about data
through fast and interactive access to a variety of possible views on information, organized …

In multidimensional data models intended for online analytic processing (OLAP), data are
viewed as points in a multidimensional space. Each dimension has structure, described by a …