1. A non-transitory information extraction computing apparatus including at least one processor with accessible input/output and at least one data store, said at least one processor being programmed for extracting data for review by a human curator from digital representations of documents comprising natural language text, the information extraction computing apparatus, in use, executing computer program instructions that cause the apparatus to provide a plurality of selectable operating modes in which the automatic information extraction apparatus extracts different data for review by a human curator, and, in at least two of the plurality of selectable operating modes, to extract data with different balances between precision and recall, whereby a balance that favours precision over recall will lead to fewer incorrect instances of data being extracted than a balance that favours recall over precision, but will omit more data which should have been extracted.
2. Automatic information extraction apparatus according to claim 1 , wherein the automatic information extraction apparatus comprises a plurality of alternative information extraction modules which are operable to cause different data to be extracted for review.