22. The method of claim 21 , further comprising annotating entities of interest in the document.
21. A method, comprising: creating respective bi-gram language models for i) entities of interest (“M INT ”), and ii) entities that are not of interest (“M NOT — INT ”); parsing unstructured text of a document into a collection C of phrases; for each phrase in C, calculating i) the probability that the phrase is associated with the model M INT and ii) the probability that the phrase is associated with the model M NOT — INT ; and determining whether each phrase is an entity of interest by comparing the calculated probabilities.