- Jamie Callan, Paul Ogilvie. 2010. Retrieval using document structure and annotations. Abstract: Successful retrieval of information from text collections requires effective use of the information present in a collection. The structure of documents in the collection and the relationships between elements within a document and other documents contain important information about the meaning of these elements. For example, the words present in the title of a web page may contain important clues about that page's content. The text of a link to the web page may also be an important indicator of the page's content. 
