The following technical report is available from
http://aib.informatik.rwth-aachen.de:
Degrees of Lookahead in Context-free Infinite Games
Wladimir Fridman, Christof Löding, Martin Zimmermann
AIB 2010-20
We continue the investigation of delay games, infinite games in which
one player may postpone her moves for some time to obtain a lookahead
on her opponents moves. We show that the problem of determining the
winner of such a game is undecidable for context-free winning
conditions. Furthermore, we show that the necessary lookahead to win a
context-free delay game cannot be bounded by an elementary function.
The following technical report is available from
http://aib.informatik.rwth-aachen.de:
Experimental Evaluation of an Independent Set Algorithm
Felix Reidl
AIB 2010-19
Following up the development of the currently fastest Independent Set
algorithm (Kneis, Langer, Rossmanith, 2009) we present a practical
evaluation, both on real-world data taken from common biological
problems and on synthetic data. In order to get a clearer picture we
measure different aspects of our implementation, especially the
different polynomial-time reduction rules. The main purpose of this
report is to show that algorithms with provable upper bounds can
indeed be used to solve practical instances, though some care must be
taken in the transfer of algorithm to code.