Mining Temporal-Pattern In Spatial Multimedia Databases

Mining temporal-spatial database containing multimedia objects is an important reseach direction with wide application prospection. Many techniques and methods for temporal data mining and spatial data mining have been proposed. Although, it gets an encouraging achievement, the current techniques for mining temporal-spatial data can't meet the increasing demands. The existing mining methods can not give perfect expression to spatial relationships among objects and do not consider the temporal changes of the spatial patterns in specific time interval.This paper proposes an effective method to discovery of spatial patterns among objects in multimedia databases. The main contributions includ:1. Gives a coordinate toeach spatial multimedia object and finds the spatial relationships and directional relationships among multimedia objects such as the northeast, southeast, northwest, and southwest, etc.2. Introduces temporal concept to spatial patterns in multimedia databases. Mining the spatial patterns of each time interval.3. Researches the variations of spatial relationships among multimedia objects with the variation along time, proposes an effective method to find the temporal variations in spatial patterns.4. Gives extensive experiments and performance study. Compares the performance in different system conditions. The proposed method is shown to deliver excellent performance under different system conditions.