Abstract:

The traditional web service description language (WSDL) is limited in describing the increasing and changing of dynamic wireless sensor network (WSN) services. The services with similar input and output (IO) interface cannot be distinguished, and thereafter the burden of WSNs for service storage and retrieval is increased. To solve this problem, the WSDL is extended with a service IO relationship characterization based on the logic expression. Accordingly, a service similarity calculation based on Google semantic distance, Levenshtein edit distance and a service IO match algorithm are proposed. Experiments show that the proposed approach can effectively distinguish the services with similar IO and accordingly improve service retrieval efficiency in WSNs.

Key words: wireless sensor networks, service matching, web service description language