A fully polynomial time approximation scheme for timing driven minimum cost buffer insertionShiyan HuZhuo Liet al.2009DAC 2009
Fast algorithms for slew constrained minimum cost bufferingShiyan HuCharles J. Alpertet al.2006DAC 2006
A faster approximation scheme for timing driven minimum cost layer assignmentShiyan HuZhuo Liet al.2009ISPD 2009
A fully polynomial-time approximation scheme for timing-constrained minimum cost layer assignmentShiyan HuZhuo Liet al.2009IEEE TCAS-II