Information retrieval and applications of graphical models (IRGM 2007).

Probabilistic models constitute an important kind of Information Retrieval (IR) model. They have been long and widely used [2], and offer a principled way of managing the uncertainty that naturally appears in many elements within this field. Nowadays, the dominant approach for managing probability within the field of Artificial Intelligence is based on the use of Bayesian Networks [15, 9], and these have also been used within IR as extensions of classical probabilistic models.