The Third International Workshop on Parameterized and Exact Computation washeldinVictoria,B. C. duringMay14-16,2008. Theworkshopwasco-located with the 40th ACM Symposium on Theory of Computing, which took place in
Victoria during May 17-20. Previousmeetings of the IWPECseries wereheld in Bergen, Norway 2004 and Zu ¨rich, Switzerland 2006, both as part of the ALGO joint conference.
TheInternationalWorkshoponParameterizedandExactComputationcovers research in all aspects of parameterized and exact computation and complexity, including but not limited to: new techniques for the design and analysis of -
rameterizedandexactalgorithms,parameterizedcomplexitytheory,relationship betweenparameterizedcomplexityandtraditionalcomplexityclassi?cations,- plicationsofparameterizedcomputation,implementationandexperiments,hi-
performancecomputing and ?xed-parametertractability. We received32 submissions. Eachsubmission wasreviewed by at least 3, and on the average 3. 9, Program Committee (PC) members. We held an electronic PC meeting using the
EasyChair system. The committee decided to accept 17 papers. We would thoroughly like to thank the members of the PC: Yijia Chen, Shanghai, China Benny Chor, Tel Aviv, Israel FedorV. Fomin,Bergen,Norway Jiong Guo, Jena,
Germany Gregory Gutin, London, UK MohammadTaghi Hajiaghayi, AT&T, USA Peter Jonsson, Link¨ oping, Sweden Iyad Kanj, Chicago, USA Dieter Kratsch, Metz, France D´ aniel Marx, Budapest, Hungary Prabhakar Ragde, Waterloo,
Canada Kenneth W. Regan, Bu?alo, USA Ulrike Stege, Victoria, Canada Stephan Szeider, Durham, UK Todd Wareham, Newfoundland, Canada Osamu Watanabe, Tokyo, Japan and all external referees for the valuable work they put in the
reviewing process. We would like to thank the three invited speakers Jianer Chen (Texas A&M University), Erik Demaine (MIT), and Stephan Kreutzer (Oxford University) for their contribution to the program of the workshop
and their contributions for this proceedings volume.