Mobile Information Collectors Trajectory Data Warehouse Design

Mobile Information Collectors' Trajectory Data Warehouse Design

To analyze complex phenomena which involve moving objects, Trajectory Data Warehouse (TDW) seems to be an answer for many recent decision problems related to various professions (physicians, commercial representatives, transporters, ecologists ...) concerned with mobility. This work aims to make trajectories as a first class concept in the trajectory data conceptual model and to design a TDW, i...

Modeling Herd Trajectory Data Warehouse

Studding the movement of animals and their behavior become an important subject. Indeed, such study can generate useful information used next to assist the decision makers involved in different domains such as agriculture, security, health care and business. We present in this work a trajectory model related to the displacement of the herd, which allows the generation of trajectory data that is...

Relay Node Placement and Trajectory Computation of Mobile Data Collectors in Wireless Sensor Networks

Dynamic Data Warehouse Design

A data warehouse (DW) can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, without accessing the original information sources. The DWs are dynamic entities that evolve continuously over time. As time passes, new queries need to be answered by them. Some of these queries can be answered using e...

Data Warehouse Schema Design

A data warehouse is an integrated database primarily used in organizational decision making. Although the deployment of data warehouses is current practice in modern information technology landscapes, the methodical schema design for such databases has only been studied cursorily. In this paper we pursue schema design for data warehouses in the spirit of classical database design, organized as ...