The full MUC-7 TIMEX Guidelines are available at www.itl.nist.gov/iaui/894.02/related_projects/muc/proceedings/ne_task.html. The approach taken to annotation in MUC-7, in 1998, embodied a number of modifications to the MUC-6 scheme:

  1. As in MUC-6, temporal expressions were to be tagged as a single item and contiguous subparts (such as month, day and year in a complete date) were not to be separately tagged. An exception was added to this rule, however, in those cases where the taggable expressions were of two distinct TIMEX sub-types, as in a date followed by a time, or a time followed by a date.
    by <TIMEX TYPE="TIME">9 o’clock</TIMEX><TIMEX TYPE="DATE">Monday</TIMEX>
  2. Some aspects of the MUC-6 guidelines that had been left underdetermined were tightened up; in particular, determiners that introduce temporal expressions were explicitly not to be tagged, and words or phrases modifying the expressions, such as around or about, were also not to be tagged.
    around the <TIMEX TYPE="DATE">4th of May</TIMEX>
    shortly after the <TIMEX TYPE="DATE">4th of May</TIMEX>
  3. A major departure from the MUC-6 annotation scheme was that MUC-7 included relative temporal expressions; however, these were not annotated any differently from absolute temporal expressions. See MUC-7 TIMEX annotation guidelines for details.
  4. Holidays referenced by name were to be tagged.
  5. In contrast to the treatment in MUC-6, LOCATION expressions appearing within time expressions were not to be separately tagged as instances of ENAMEX.
    <TIMEX TYPE="TIME">1:30 p.m. Chicago time</TIMEX>
    <TIMEX TYPE="TIME">Japan time, 19 February, 8:00 A.M.</TIMEX>
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License