11. The method of claim 9 , further comprising: displaying, by the computer, the plurality of tokens on a video display; receiving, by the computer, an indication from an individual viewing the video display that a second token of the plurality of tokens has been misclassified; and reclassifying the second token into a different class according to the indication.
9. A method, comprising: determining, by a computer, a first token of a plurality of tokens in an unstructured input document, the first token having a visual style; producing, by the computer, a first probability distribution of the first token across a plurality of classes, each class of the plurality of classes being related to a corresponding content of one or more of the plurality of tokens; modifying, by the computer, the first probability distribution to produce a second probability distribution of the first token across the plurality of classes, the second probability distribution being based on one or more classes of the plurality of classes, the one or more classes being likely to contain a plurality of surrounding tokens appearing near the first token in context of the input document; producing, by the computer, a third probability distribution of the first token across the plurality of classes, the third probability distribution being based on the visual style of the first token and the second probability distribution; determining, by the computer based at least on the third probability distribution, a classification of the first token into one of the plurality of classes; and forming, by the computer, a structured document from the first token and the classification.