Moninder Singh Jayant Kalagnanam Sudhir Verma Amit J. Shah Swaroop K. Chalasani Automated cleansing for spend analytics. 437-445 2005 conf/cikm/2005 CIKM http://doi.acm.org/10.1145/1099554.1099682 db/conf/cikm/cikm2005.html#SinghKVSC05