A fast bit-vector algorithm for approximate string matching based on dynamic programming

The approximate string matching problem is to find all locations at which a query of length m matches a substring of a text of length n with k -or-fewer differences. Simple and practical bit-vector algorithms have been designed for this problem, most notably the one used in agrep . These algorithms compute a bit representation of the current state-set of the k -difference automaton for the query, and asymptotically run in either O ( nm/w ) or O...