Hierarchical approach for the statistical vowelization of Arabic text

The present invention relates to the field of computer-aided text and speech processing, and in particular to a method and respective system for converting an input text given in an incomplete language, for example a language, in which unvowelized text is used, into speech, wherein a computer-aided grapheme-phoneme conversion is used. In order to improve completion of the text, it is proposed to Advantageously, the text is completed according to a model hierarchy giving higher priority to longer chunks of text, ie sentences then multiword phrases, then words and finally character groups.