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one stage. Recognition 1. 不知道有幾個字 2. 不知道 ( 答案 ) 是那些字 考慮所有情況 (411+1+1). bre. sil. syll. syll. State 的情形. Intra-syllable. bre. bre. sil. sil. syll. syll. syll. Inter-syllable. bre. bre. sil. syll. syll. bre. bre. sil. sil. bre. syll. syll. frame 對 model 的所有情況.
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Recognition 1.不知道有幾個字 2.不知道(答案)是那些字 考慮所有情況(411+1+1) bre sil syll . . . syll
. . . . . . . . . . . . . . . . . . . . . . . . State的情形 Intra-syllable bre bre sil sil syll syll syll Inter-syllable bre bre sil syll syll bre bre sil sil bre syll syll
frame對model的所有情況 model . . . . . . . . . . . . . . . . . . . . . . start end frame One-stage的方法: 對所有的states(411*8+1+3)做三件事: (1)找出最佳路徑 (2)記錄最佳路徑(backtrace) (3)累加likehood 1.第一個state從(411+1+1) 條路徑中選最好的 (top_one search) 2.其他state就自已、前一個
One_stage 的程式流程 Begin • Allocate • L, LL(likelihood) • BK, BBK(for back trace) • D, DD(state duration) • silence model • state 0 • self • top_mode • Initialization (t=0) • observation prob(t=0) • disable all models (D=0) • enable first state of all syllable and • silence , breath • top_likelihood • Top_model • FM[0] = MODEL-2(for back trace ) • FF[0] = -1(for time ) 1 2 • Top_one_search • for 411 syllable , • silence ,breath • update top_likelihood • update top_model t t>Nframe 1 • Find optimal path • back trace to find • recognized text and • segment position 1 • Switch buffer • L,LL • BK,BBK • D,DD end • Disable all models • D = 0 411 model 411 model • Initial • state 0(first) • self • top_model • other states • self • last state 411 model • final • state 3 • self • last state of initial • other states • self • last state 2 1 411 model • Breathe model • state 0 • self • top_model • other states • self • last state