XML Output for Sphinx Motivation: applications may be able to make use of richer information from sphinx including n-best lists, the word lattice, and other features. An xml dtd format will be standard, and easy to parse, express, and modify.

Proposed DTD http://www.cs.cmu.edu/~tkharris/usi/utterance-0.1.dtd Sphinx produces utterances, each utterance is an xml document that conforms to the DTD An utterance is an n-best list or word-lattice or both An n-best list is a list of lists of words Each list and the words may have features The DTD desperately needs review

Issues Is the motivation justified? Computational/Network impact too much? API’s are needed to parse XML Need to get requirements/observations from Sphinx customers