xvii Acknowledgment The editors would like to thank the Editorial Advisory Board that supported us in the review process. Francesco Amato of University of Catanzaro (Italy), Robert Beiko of Dalhousie University (Canada), Alessandra Orsoni of Kingston University (UK), Monika Heiner of Brandeburg University (Germany), Joao Manuel R. S. Tavares of University of Porto (Portugal) took part on the Editorial Advisory Board and offered their time and their scientific guidance to make the contents of the book homogenous and current. The editors are also extremely grateful to the reviewers that revised accurately and always in time the chapter proposals and the full manuscripts. In particular the editors would like to thank Andrea Pugliese of University of Trento, Guylaine Poisson of University of Hawaii (USA), Patricia Evans of University of New Brunswick (Canada), Michela Lecca of Fondazione Bruno Kessler ­ Center for In- formation Technology (Italy) and Marina Scarpa of University of Trento (Italy). Finally, the editors would like to express their thanks to all the authors that submitted their manuscript and made the realiza- tion of this book possible. Paola Lecca The Microsoft Research ­ University of Trento, Centre for Computational and Systems Biology, Italy Dan Tulpan National Research Council, Canada Kanagasabai Rajaraman Institute for Infocomm Research, Singapore