Abstract:
Methods and systems may retrieve travel data records corresponding to travel requests; retrieve expense data records reflecting expense transactions, compare the expense data records to the travel data records, and determine a likelihood that the expense data records match the travel data records. Methods and systems may also detect possible duplicate travel path information by obtaining a set of travel paths with at least two travel paths, breaking each travel path into at least one segment comprising a single unit of travel with an origin and a destination, comparing each leg in each travel path to each leg in every other travel path to determine whether any travel paths are duplicates, and listing any segment paths that are possible duplicates.