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libgvps

libgvps stands for Generic Viterbi Path Searcher.

This library is an implementation of Viterbi algorithm in a probabilistic formulation that helps you find the most likely sequence given a set of states or candidates over a certain time period and the state transition probabilities.

libgvps allows the states/candidates space to be dense or sparse or even circular; transition probabilities can be either static or dynamic (along time axis).

Function Geometric description Examples (if any)
gvps_sparse_sampled path searching on a plane
gvps_sparse_sampled_hidden path searching on a double-sided plane with only one side exposed
gvps_sparse_sampled_static path searching on a plane assuming time locality of trans. prob F0 tracking
gvps_sparse_sampled_hidden_static path searching on a double-sided plane with only one side exposed, assuming time locality of trans. prob F0 tracking, (lowpass-like) filtering on a discrete/quantized signal
gvps_sparse_circular path searching on a cylinder
gvps_sparse_circular_hidden path searching on a double-sided cylinder with only one side exposed
gvps_sparse_circular_static path searching on a cylinder assuming time locality of trans. prob
gvps_sparse_circular_hidden_static path searching on a double-sided cylinder with only one side exposed, assuming time locality of trans. prob
gvps_full_sampled path searching on a plane
gvps_full_sampled_hidden path searching on a double-sided plane with only one side exposed
gvps_full_sampled_static path searching on a plane assuming time locality of trans. prob trajectory tracking in a gray-scale image, (lowpass-like) filtering on a discrete/quantized signal
gvps_full_sampled_hidden_static path searching on a double-sided plane with only one side exposed, assuming time locality of trans. prob trajectory tracking in a gray-scale image, allowing discontinuities
gvps_full_circular path searching on a cylinder
gvps_full_circular_hidden path searching on a double-sided cylinder with only one side exposed
gvps_full_circular_static path searching on a cylinder assuming time locality of trans. prob
gvps_full_circular_hidden_static path searching on a double-sided cylinder with only one side exposed, assuming time locality of trans. prob
gvps_full path searching on a (topological) plane with arbitrary geometric assumptions
gvps_full_static path searching on a (topological) plane with arbitrary geometric assumptions, assuming time locality of trans. prob MAP inference for Hidden Markov Models
gvps_variable path searching in an arbitrary space unit selection speech synthesis

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