Modeling and Querying Probabilistic XML Data

摘要

We survey recent results on modeling and querying probabilistic XML data. The literature contains a plethora of probabilistic XML models [2, 13, 14, 18, 21, 24, 27], and most of them can be represented by means of p-docum,ents [18] that have, in addition to ordinary nodes, distributional nodes that specify the probabilistic process of generating a random document. The above models are families of p-documents that differ in the types of distributional nodes in use.