An adaptive updating protocol for reducing moving object database workload

In the last decade, spatio-temporal database research focuses on the design of effective and efficient indexing structures in support of location-based queries such as predictive range queries and nearest neighbor queries. While a variety of indexing techniques have been proposed to accelerate the processing of updates and queries, not much attention has been paid to the updating protocol, which is another important factor affecting system performance. In this paper, we propose a generic and adaptive updating protocol for moving object databases with less number of updating messages between the objects and database server, thereby reducing the overall workload of the system. In contrast to the approach adopted by most conventional moving object database systems where the exact locations and velocities last disclosed are used to predict their motions, we propose the concept of Spatio-Temporal Safe Region to approximate possible future locations. Spatio-temporal safe regions provide la...

• Type: Journal
• Year: 2012
• Where: VLDB
• Authors: Su Chen, Beng Chin Ooi, Zhenjie Zhang
• Keywords: Database, Neighbor Queries, Object Database Systems, Temporal Database Research, VLDB 2012