Good luck! I've implemented a fairly vanilla Text index and it works well with no problems so far in the past two or three (I forget) years since implementation. Based on that success, I rolled out UltraSearch. I have had zero help from Support with any out-of-the-ordinary errors in UltraSearch -- and there have been a few. I've unfortunately since asked to dump the product in favor of another vendor who will support their product. Very disappointed. GL! Rich -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Arnold, Sandra Sent: Tuesday, March 28, 2006 2:42 PM To: oracle-l@xxxxxxxxxxxxx Subject: Oracle Text Classification/Clustering Is anyone out there using the Oracle Text Classification or Clustering technology? We are looking into to using this and there is only such much you can find as far as documentation. Would like to know if you are using it how effective is it in improving your query performance. Thanks, Sandra Arnold Senior DBA NCI Information Systems US DOE/OSTI Oak Ridge, TN 37830