- From: Kathryn Blackmond Laskey <klaskey@gmu.edu>
- Date: Sun, 29 Jul 2007 13:51:15 -0400
- To: Giorgos Stoilos <gstoil@image.ece.ntua.gr>, Peter.Vojtas@mff.cuni.cz, 'Ken Laskey' <klaskey@mitre.org>
- Cc: 'Kathryn Blackmond Laskey' <klaskey@gmu.edu>, public-xg-urw3@w3.org, 'Umberto Straccia' <umberto.straccia@isti.cnr.it>
>...in order for the system to >return the exact height of each person and then a local processing method to >fuzzify the heights... That is assuming the exact heights are available. For many of the problems we are concerned about, there will be values in the database, but we cannot assume they are correct. The database may contain accurate height measures for some of the people, and either null values (height is unknown) or imputed values (a guess or inference based on other available data for the person) for some of the people. Maybe the information is out of date. If a person is 19 years old, we cannnot assume that a 6-year-old height measurement is accurate. On the other hand, if the person is 30 years old, then the height 6 years ago is probably fine. K
Received on Sunday, 29 July 2007 17:51:12 UTC