Patent ID: 7447625

Claim:
A method of generation text script of high efficiency, said method comprising: selecting N 1 sentences with best integrated efficiency from a source corpus comprised by at least a sentence and resulting N 1 sets, wherein each set of said N 1 sets has at least a sentence; repeating procedures for generating text script of high efficiency until satisfying a termination criterion, said procedures comprising: deleting the sentences in said N i sets from said source corpus and resulting in N i corpora, wherein N i is equal to or greater than two; correspondingly selecting M i+l sentences with best integrated efficiency from each of said N i corpora and resulting in N i ×M i+1 sets, wherein each of the N i ×M i+1 sets is generated by placing each of the M i+1 sentences into a corresponding set of the N i sets of a previous procedure; selecting N i+1 sets with best integrated efficiency from said N i ×M i+1 sets; replacing said N i sets with said N i+1 sets when a termination criterion is satisfied and the set with best integrated efficiency among said N i+1 sets is said text script of high efficiency; and storing said text script in a memory, and said text script being used as text script for corpus of TTS (text to speech); wherein i meaning an i th procedure, i=1, 2, . . . ; N i+1 being a number of said selected sets with best integrated efficiency in said i th procedure; M i+1 being a number of said selected sentences with best integrated efficiency from one of the N i corpora; M i and N i being an integer and greater than or equal to one, j=1, 2, . . . ; and said integrated efficiency being decided upon an integrated efficiency function that comprising reciprocals of total unit instances of said selected sentence or set of sentences.