A Survey of Distant Supervision Methods using PGMs

Relation Extraction refers to the task of populating a database with tuples of the form $r(e_1,e_2)$, where $r$ is a relation and $e_1$, $e_2$ are entities. Distant supervision is one such technique which tries to automatically generate training examples based on an existing KB such as Freebase. This paper is a survey of some of the techniques in distant supervision which primarily rely on Probabilistic Graphical Models (PGMs).