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The proliferation of biological sequence data has motivated the need for an extremely fast probabilistic sequence search. One method for performing this search involves evaluating the Viterbi probability of a hidden Markov model (HMM) of a desired sequence family for each sequence in a protein database. However, one of the difficulties with current(More)
Description of keypoints, or local image features, is widely employed in computer vision. However, the most successful techniques do not extend immediately to more than two spatial dimensions. In this paper, we describe robust methods for extracting local orientations and gradient histograms from higher-dimensional data, using these techniques to develop a(More)
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