This book constitutes the thoroughly refereed post-conference proceedings of the 9th
International Symposium on Parameterized and Exact Computation IPEC 2014 in Wroclaw Poland
in September 2014. The 27 revised full papers presented together with one invited paper were
carefully reviewed and selected from 42 submissions. The topics addressed cover research in all
aspects of parameterized exact algorithms and complexity including but are not limited to new
techniques for the design and analysis of parameterized and exact algorithms fixed-parameter
tractability results parameterized complexity theory relationship between parameterized
complexity and traditional complexity classifications applications of parameterized and exact
exponential-time computation and implementation issues of parameterized and exact
exponential-time algorithms.
