PPT Slide
3) Exploiting hidden structure
(Stamm 1992; Larrabee 1991; Gallo and Urbani 1989; Boros et al. 1993)
4) Limited resolution at the backtrack nodes
(Billionet and Sutter 1992; van Gelder and Tsuji 1993)
Open Question: Why don’t they beat DP?
Let’s try something completely different ...