A sliding window join (SWJoin) is becoming an integral operation in every stream data management system. In some streaming applications the increasing volume of streamed data as w...
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...