The Technology Database E3TDB offers a common and consistent data inventory for different models within the TEEM project for the analysis of energy, environmental and economic issues. E3TDB comprises technical-economic data of 436 energy technologies from both supply side and demand side. E3TDB...

Data warehouse is the main technology which integrates data from company operations. Business Intelligence with DW at its center, enables the company to extract very important information for making business decisions from these data. Implementation of these systems is a very expensive and long...

The mining of cube gradients is an extension of traditional association rules mining in data cube and has broad applications. In this paper, we consider the problem of mining constrained cube gradients for partially materialized data cubes. Its purpose is to extract interesting gradient-probe...

Purpose – As business globalisation and internet usage continue to grow, the internet‐based version of data warehouse systems (DWS) is expected to improve traditional DWS. However applying the web‐based interfaces to client‐server‐based DWS structures may cause problems such as...