1. A method automatically discovering salient segments in a speech transcript, comprising: performing a first segmentation of the speech transcript using a boundary-based process to generate a sequence of first segments, indicative of a temporal proximity of features in the speech; performing a second segmentation of the first segments for determining a rate of arrival of the features, and for generating a sequence of second segments; and performing a third segmentation of the second segments using a content-based process to generate a sequence of third segments, to minimize oversegmentation.