Consider a database that represents the location of moving objects, such as taxi-cabs (typical query: retrieve the cabs that are currently within 1 mile of 33 Michigan Ave., Chica...
Ouri Wolfson, Sam Chamberlain, Son Dao, Liqin Jian...
The object identifier index of an object-oriented database system is typically 20% of the size of the database itself, and for large databases, only a small part of the index fits...
Abstract Loosely coupled services are gaining importance in many business domains. However, compared to OO-RPC middleware approaches, emerging technologies proposed to implement lo...
Abstract. Description Logics (DLs) are a family of logic based knowledge representation formalisms. Although they have a range of applications (e.g., configuration and information...
This study reports on several typical scenarios of the use of email notification interface agents under the influence of critical incidents. An interface agent is a reactive, coll...