Large Vocabulary Continuous Speech Recognition - Berlin Chen

Word Graph Rescoring (5/6)• “Word-Pair” Approximation: for each path hypothesis, theposition of word boundary between the last two words isindependent of the other words of this path hypothesis• An illustration for “word-pair” approximation肺 炎疫 情影 響飛 蛾疫 情影 響B uv( w , t ) = τ2u nw=“ 影 響 ”τ τ12u n-1v=“ 疫 情 ”u n-2Historyb=“ 飛 蛾 ” a=“ 肺 炎 ”Speech – Berlin Chen 43