On the Relation between Relevant Passages and XML Document Structure

Motivation • As Salton et al. [1993, p.49] put it: Large collections of full-text documents are now commonly used in automated information retrieval. When the stored document texts are long, the retrieval of complete documents may not be in the users’ best interest. In such circumstances, efficient and effective retrieval results may be obtained by using passage retrieval strategies designed to retrieve text excerpts of varying size in response to statements of user interest. • But what to return? parts of the document structure? or fixed window passages?