7. The computing system of claim 5 , the memory further comprises instructions that further configure the computing system to: process each document in a set of documents to determine training blocks, wherein metadata for each document in the set includes an annotation indicating from where the document should be opened upon initially opening the respective document; categorize portions of each training block, categories for the portions including a title portion and a body-text portion; train the first classifier to classify each of the training blocks based on body-text portions of the training blocks; and train the second classifier to classify each of the training blocks based on title portions of the training blocks, wherein the first and second classifiers are trained to classify training blocks occurring before where the metadata indicates the document should be opened as being not likely to be where the hypothetical person would begin reading the document, and trained to classify training blocks including and occurring after where the metadata indicates the document should be opened as being likely to be where the hypothetical person would begin reading the document.
5. The computing system of claim 4 , the memory further comprises instructions that further configure the computing system to: determine a third plurality of features from the second block, the third plurality of features relating, at least in part, to the second title portion; provide the third plurality of features to a second classifier, the second classifier to identify whether the second block is likely to be where the hypothetical person would begin reading the first electronic document based on the second title portion; and determine, based on a third score output by the second classifier in response to the third plurality of features, that the second block is not likely to be where the hypothetical person would begin reading the first electronic document, wherein the third score is determined prior to the second plurality of features being provided to the first classifier.