title: parametric query optimization for linear and piecewise linear cost functions. authors: s. sudarshan , arvind hulgeri. venue: vldb. year: 2002
title: parametric query optimization. authors: yannis e. ioannidis , raymond t. ng , kyuseok shim , timos k. sellis. venue: the vldb journal -- the international journal on very large data bases. year: 1997