OLAP for moving object data. (1st January 2013)

• Record Type: Journal Article
• Authors: Baltzer, Oliver; Dehne, Frank; Rau-Chaplin, Andrew
• Is Part Of: International journal of intelligent information and database systems. Volume 7:Number 1(2013)
• Page Start: 79
• Page End: 112
• Publication Date: 2013-01-01
• Subjects: online analytical processing -- OLAP -- group-by operator -- moving object data -- spatial OLAP; Database management -- Computer programs -- Periodicals; Information retrieval -- Computer programs -- Periodicals; Information storage and retrieval systems -- Computer programs -- Periodicals; Artificial intelligence -- Periodicals; Expert systems (Computer science) -- Periodicals; Intelligent agents (Computer software) -- Periodicals; 006.33
• Languages: English
• ISSNs: 1751-5858

Abstract

In this paper, we present an OLAP framework for moving object data. We introduce a new operator GROUP_TRAJECTORIES for group-by operations on moving object data and present two implementation alternatives for computing groups of moving objects for group-by aggregation: group by overlap and group by intersection . We also present an interactive OLAP environment for resolution drill-down/roll-up on sets of trajectories and parameter browsing. We evaluate the performance of our GROUP_TRAJECTORIES operator by using generated as well as real life moving object datasets.