The world of data has been developed from two main points of view: the structured relational data model and the unstructured text model. The two distinct cultures of databases and information retrieval now have a natural meeting place in theWeb with its semi-structured XML model. As web-style searching becomes an ubiquitous tool, the need for integrating these two viewpoints becomes even more important.
This tutorial will provide an overview of the different issues and approaches put forward by the Information Retrieval and the Database communities and survey the DB-IR integration efforts with a focus on techniques applicable to XML retrieval. A variety of application scenarios for DB-IR integration will be covered, including examples of current industrial tools.