This paper discusses how to extend the applicability of the recursive cascade update command of the Xplain query language. This command guarantees termination because cycle detect...
We describe COTERIE, a toolkit that provides languagelevel support for building distributed virtual environments. COTERIE is based on the distributed data-object paradigm for dist...
Semantic query optimization (SQO) has been proved to be quite useful in various applications (e.g., data integration, graphical query generators, caching, etc.) and has been extens...
XML data are described by types involving regular expressions. This raises the question of what language feature is convenient for manipulating such data. Previously, we have give...
Many substantial geographic information systems (GIS) have been designed for use by expert users. As a result, nonexpert users often find them difficult to use. This paper present...