Publisher Summary This chapter describes XSEarch, a semantic search engine for XML.
XSEarch has a simple query language, suitable for a naive user. It returns semantically …

Database researchers have striven to improve the capability of a database in terms of both
performance and functionality. We assert that the usability of a database is as important as …

A number of techniques have been developed to facilitate powerful data retrieval on the
Web and Semantic Web. Three categories of Web query languages can be distinguished …

Forms-based query interfaces are widely used to access databases today. The design of a
forms-based interface is often a key step in the deployment of a database. Each form in such …

One of the simplest ways to query a database is through a form where a user can fill in
relevant information and obtain desired results by submitting the form. Designing good forms …

A form-based query interface is usually the preferred means to provide an unsophisticated
user access to a database. Not only is such an interface easy to use, requiring no technical …

Query evaluation over probabilistic XML is explored. The queries are twig patterns with
projection, and the data is represented in terms of three models of probabilistic XML (that …

La nature de sources d'information évolue, et les documents numériques traditionnels plats
ne contenant que du texte s' enrichissent d'information structurelle et multimédia. Cette …

Vast amount of medical information is increasingly available on the Web. As a result,
seeking medical information through queries is gaining importance in the medical domain …

Stochastic context-free grammars (SCFGs) have long been recognized as useful for a large
variety of tasks including natural language processing, morphological parsing, speech …