150 Alexandros Grigoriadis and Georgios Paliouras
Despite this fact the lookahead method seems to be worse than the other two methods in most cases. Therefore, the additional computation is not justified. Among the other two methods, no clear conclusion can be drawn about which of the two is better. However, the fact that the two methods are based on the R.L. principle, combined with the fact that they seem to complement each other in terms of performance, indicates a potential synergy among them.
Fig. 6. Results for the variant without lookahead – Greek