This paper describes a web-based electronic commerce system in which customers and merchants delegate the related tasks to their personal software ag...

Research on visual and auditory modalities in human-computer interfaces has been aimed at making the interface similar to the process through which p...

This paper examines the effects of information request ambiguity and construct incongruence on end user's ability to develop SQL queries with an inte...

The Internet has become the global infrastructure supporting information acquisition and retrieval from many heterogeneous data sources containing hi...

OLAP queries involve a lot of aggregations on a large amount of data in data warehouses. To process expensive OLAP queries efficiently, we propose a...