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The complexity and dynamics in groupage traffic require flexible, efficient, and adaptive planning and control processes. The general problem of allocating orders to vehicles can be mapped into the Vehicle Routing Problem (VRP). However, in practical applications additional requirements complicate the dispatching processes and require a proactive and reactive system behavior. To enable automated dispatching...
As the capacity and speed of flash memories in form of solid state disks grow, they are becoming a practical alternative for standard magnetic drives. Currently, most solid-state disks are based on NAND technology and much faster than magnetic disks in random reads, while in random writes they are generally not.So far, large-scale LTL model checking algorithms have been designed to employ external...
We present an extension of the model checker PRISM for (general purpose) graphics processing units (GPUs). The extension is based on parallel algorithms for probabilistic model checking which are tuned for GPUs. In particular, we parallelize the parts of the algorithms that boil down to linear algebraic operations, like solving systems of linear equations and matrix vector multiplication. These computations...
Solid state disks based on flash memory are an apparent alternative to hard disks for external memory search. Random reads are much faster, while random writes are generally not. In this paper, we illustrate how this influences the time-space trade-offs for scaling semi-external LTL model checking algorithms that request a constant number of bits per state in internal, and full state vectors on external...
Urban mobility planning depends largely on the presence of good navigation data in the form of vectorized maps. Unfortunately, vector maps are not always available for many areas -especially for many of the third world countries. On the other hand, good paper maps collected by the city authorities are widely available. A solution is the collaborative map generation process that allows people to share...
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