This list can be sorted using different criteria, e.g. highest relevance score first, most recent first. Each extract highlights the query words and also shows how often the query words were found in the whole document. The ratio of the relevance score for a document to the score of the top ranking document for the current search is also displayed. The user can listen to the part of the sound source that corresponds to the extract. The whole automatic transcript can be accessed on a separate web page where the user can listen to selected parts of the transcription by highlighting them.
Work is ongoing to extend the data base to British English news.
Also a windowing system is being developed that allows automatic content dependent segmentation of news broadcasts. Spoken Document Retrieval for TREC-8 at Cambridge University. General Query Expansion Techniques for Spoken Document Retrieval.