The amount of data of all kinds available electronically has increased dramatically in recent
years. The data resides in different forms, ranging from unstructured data in file systems to …

We consider the problem of efficiently producing ranked results for keyword search queries
over hyperlinked XML documents. Evaluating keyword search queries over hierarchical …

Lorel language, designed for querying semistructured data. Semistructured data is
becoming more and more prevalent, eg, in structured documents such as HTML and when …

XML is fast emerging as the dominant standard for representing data in the World Wide
Web. Sophisticated query engines that allow users to effectively tap the data stored in XML …

In recent years there has been an increased interest in managing data that does not conform
to traditional data models, like the relational or object oriented model. The reasons for this …

Lore (for Lightweight Object Repository) is a DBMS designed specifically for managing
semistructured information. Implementing Lore has required rethinking all aspects of a …

This article describes XRel, a novel approach for storage and retrieval of XML documents
using relational databases. In this approach, an XML document is decomposed into nodes …

Real-scale Semantic Web applications, such as Knowledge Portals and E-Marketplaces,
require the management of large volumes of metadata, ie, information describing the …

Systems for managing and querying semistructured-data sources often store data in
proprietary object repositories or in a tagged-text format. We describe a technique that can …

The popularity of the World-Wide Web (WWW) has made it a prime vehicle for disseminating
information. The relevance of database concepts to the problems of managing and querying …