Speech recognition dictionary enlargement using derived words

摘要

There is provided an improved speech recognition system of the type permitting enlargement of a dictionary that associates a phonetic transcription with each word. The improvement includes an input for specifying a word to be entered into the dictionary; a derivative generator for identifying a set of words that includes the specified word and at least one derivative of the specified word; and an update arrangement for adding to the dictionary desired members of the set, along with a phonetic transcription of each such desired member.