23. A computer program tangibly stored on a computer-readable medium and operable to cause a computer to segment a stream of text into segments using a plurality of language models, the stream of text including a sequence of blocks of text, comprising instructions to: score the blocks of text against the language models to generate language model scores for the blocks of text, the language model score for a block of text against a language model indicating a correlation between the block of text and the language model; generate language model sequence scores for different sequences of language models to which a sequence of blocks of text may correspond, a language model sequence score being a function of the scores of a sequence of blocks of text against a sequence of language models; select a sequence of language models based on a predetermined condition; and identify segment boundaries in the stream of text that correspond to language model transitions in the selected sequence of language models.
23. A computer program tangibly stored on a computer-readable medium and operable to cause a computer to segment a stream of text into segments using a plurality of language models, the stream of text including a sequence of blocks of text, comprising instructions to: score the blocks of text against the language models to generate language model scores for the blocks of text, the language model score for a block of text against a language model indicating a correlation between the block of text and the language model; generate language model sequence scores for different sequences of language models to which a sequence of blocks of text may correspond, a language model sequence score being a function of the scores of a sequence of blocks of text against a sequence of language models; select a sequence of language models based on a predetermined condition; and identify segment boundaries in the stream of text that correspond to language model transitions in the selected sequence of language models. 32. The computer program of claim 23, wherein a block of text comprises a sentence.