Constitutes the refereed proceedings of the 6th International Conference on Unconventional Computation, UC 2007, held in Kingston, Canada, in August 2007. This work addresses various aspects of unconventional computation - theory as well as experiments and applications.

Invited Papers.- How Neural Computing Can Still Be Unconventional After All These Years.- Optimal Algorithmic Cooling of Spins.- Nanocomputing by Self-assembly.- Organic User Interfaces (Oui!): Designing Computers in Any Way Shape or Form.- Regular Papers.- Unconventional Models of Computation Through Non-standard Logic Circuits.- Amoeba-Based Nonequilibrium Neurocomputer Utilizing Fluctuations and Instability.- Unconventional “Stateless” Turing–Like Machines.- Polarizationless P Systems with Active Membranes Working in the Minimally Parallel Mode.- On One Unconventional Framework for Computation.- Computing Through Gene Assembly.- Learning Vector Quantization Network for PAPR Reduction in Orthogonal Frequency Division Multiplexing Systems.- Binary Ant Colony Algorithm for Symbol Detection in a Spatial Multiplexing System.- Quantum Authenticated Key Distribution.- The Abstract Immune System Algorithm.- Taming Non-compositionality Using New Binders.- Using River Formation Dynamics to Design Heuristic Algorithms.- Principles of Stochastic Local Search.- Spatial and Temporal Resource Allocation for Adaptive Parallel Genetic Algorithm.- Gravitational Topological Quantum Computation.- Computation in Sofic Quantum Dynamical Systems.- Bond Computing Systems: A Biologically Inspired and High-Level Dynamics Model for Pervasive Computing.

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