Details of recognizing chronological information

  1. A rulebased parser to isolate all numerical phrases.

  2. Then a recognizer: either a

    1. Rule-based or a
    2. Machine learning system

  3. a module to create the index to facilitate retrieval

  4. a module to score the chronological phrase in the page

Please observe the red text that should be recognized as chronological references relevant to the query (blue: not relevant).