Continuous Subgraph Pattern Search over Graph Streams

Search over graph databases has attracted much attention recently due to its usefulness in many fields, such as the analysis of chemical compounds, intrusion detection in network traffic data, and pattern matching over users' visiting logs. However, most of the existing work focuses on search over static graph databases while in many real applications graphs are changing over time. In this paper we investigate a new problem on continuous subgraph pattern search under the situation where multiple target graphs are constantly changing in a stream style, namely the subgraph pattern search over graph streams. Obviously the proposed problem is a continuous join between query patterns and graph streams where the join predicate is the existence of subgraph isomorphism. Due to the NP-completeness of subgraph isomorphism checking, to achieve the real time monitoring of the existence of certain subgraph patterns, we would like to avoid using subgraph isomorphism verification to find the exa...

• Type: Journal
• Year: 2009
• Where: ICDE
• Authors: Changliang Wang, Lei Chen 0002
• Keywords: Database, ICDE 2009, Subgraph Isomorphism, Subgraph Pattern Search, Subgraph Patterns