Devanand Ravindran Papers on DiSC'04 Exploiting Hierarchical Relationships in Conceptual Search Publications Note: Links lead to the DBLP on the Web. Devanand Ravindran Devanand Ravindran, Susan Gauch : Exploiting hierarchical relationships in conceptual search. CIKM 2004 : 238-239 1 [ 1 ] ©2005 Association for Computing Machinery