We investigate a class of path constraints that is of interest in connection with both semistructured and structured data. In standard database systems, constraints are typically ...
Abstract. One of the virtues of XML is that it allows complex structures to be easily expressed. This allows XML to be used as an intermediate, neutral, and standard form for repre...
An increasing number of business users and software applications need to process information that is accessible via multiple diverse information systems, such as database systems,...
Regular path queries are a way of declaratively expressing queries on graphs as regular-expression-like patterns that are matched against paths in the graph. There are two kinds o...
Yanhong A. Liu, Tom Rothamel, Fuxiang Yu, Scott D....
Abstract. We present in this paper a new model for representing probabilistic information in a semi-structured (XML) database, based on the use of probabilistic event variables. Th...