Experiment on combining sources of evidence for passage retrieval

Abstract

Passage retrieval consists in identifying short but informative runs of a long text, given a specific user query. We discuss the sources of evidence that help choosing likely high-quality passages, such as relevance to the user query and self-containedness. These measures are different from the traditional information retrieval procedure due to the use of the context of the passage. © Springer-Verlag Berlin Heidelberg 2005.