"Tell me more" using Ladders in Wikipedia

We focus on the problem of "tell me more" information related to a given fact in Wikipedia. We use the novel notion of role to link information in an infobox with different places in the text of the same Wikipedia page (space) as well as information across different revisions of the page (time). In this way, it is possible to link together pieces of information that may not represent the same real world entity, yet have served in the same role. To achieve this, we introduce a novel structure called ladder that allows such spatial and temporal linking and we show how to effectively and efficiently construct such structures from Wikipedia data.