15. A computer-implemented method of data validation, the computer-implemented method comprising: creating a list of data elements, the list of data elements including data elements that are similar to a given data element from a set of extracted data elements; searching at least one data source to retrieve search results associated with the list of data elements; correlating the search results with the list of data elements to generate a weighted list of data elements, the weighted list of data elements including an assigned weight for pairs of data elements, each assigned weight indicating a probability of a correct pairing based on information associated with the set of extracted data elements; modifying assigned weights in the weighted list of data elements based on validation rules; wherein modifying assigned weights based on validation rules includes identifying rules associated with the set of extracted data elements that specify expected properties of a given category of data element; and via execution of at least one computer processor, validating the given data element based on modified assigned weights.
15. A computer-implemented method of data validation, the computer-implemented method comprising: creating a list of data elements, the list of data elements including data elements that are similar to a given data element from a set of extracted data elements; searching at least one data source to retrieve search results associated with the list of data elements; correlating the search results with the list of data elements to generate a weighted list of data elements, the weighted list of data elements including an assigned weight for pairs of data elements, each assigned weight indicating a probability of a correct pairing based on information associated with the set of extracted data elements; modifying assigned weights in the weighted list of data elements based on validation rules; wherein modifying assigned weights based on validation rules includes identifying rules associated with the set of extracted data elements that specify expected properties of a given category of data element; and via execution of at least one computer processor, validating the given data element based on modified assigned weights. 22. The computer-implemented method of claim 15 , further comprising: receiving the set of extracted data elements from a document; and identifying contextual information related to the document.