Abstract: Complex event detection can get useful information from vast of data, so it has drawn extensive research and attention in recent years. However, there are many complex events occurring in a very long period. Due to the constraint of memory, traditional complex event detection technologies arc not suitable for this case. To detect complex events for long process, this essay proposed the policies of object tree as memory storage structure,PR replacement, storage of e- vents by classify, the instance map table. Finally, the effectiveness and efficiency of our proposed methods for complex event detection were verified through experiments on real data set.

Key words: Complex event detection for long process, Object tree, PR replacement, Instance-map table, Storage of events by classify