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[lemma=algorithm] □
The result may be that weak algorithms continue to be used even after researchers determine they are flawed . Distributed routing algorithms continue to be the subject of research and engineering , and it is likely that advances will be made over the next several years . The parallel algorithms have been designed using a realistic model of general purpose distributed memory systems . Divide-and-conquer algorithms have been implemented in ScaLAPACK because these algorithms offer a much greater scope for exploiting parallelism than the corresponding adapted dense algorithms . Although several polynomial-time algorithms have been proposed for this problem , to our best knowledge few computational results have been reported . Several MST-based heuristic algorithms have been proposed to solve this more general problem . These algorithms have not only enabled the exploration of evolutionary relationships among species but also led to the discovery of new proteins and improved inference of transmission of viral diseases such as AIDS . The linear-scaling algorithms have enabled 6.44-billion-atom MD and 111,000 - atom QM calculations on 1,024 SP3 processors with parallel efficiency well over 90 percent . These algorithms offer a variety of trade-offs in accuracy , computation time , and suitability to particular situations . All the automated algorithms assume that certain voxels have been defined by the user as belonging to certain classes , and these voxels are used as samples of these classes . A majority of color images that have been quantized using the median cut algorithm demonstrate superior visual quality when compared to those quantized using uniform subdivision or the popularity method .