| 摘要 |
<p>Systems and methods are provided for tracking the origins and dates of a document or piece of content by finding similar or exact matching documents or pieces of content stored in an index. The index may include current and non-current documents along with associated information for each document. By parsing each document using various schemes, it is possible to correlate similar or matching documents. Using such document correlations, it is possible to determine the origins and earlier dates of a particular document.</p> |
