backward adv. 向后,在后,在后方;倒,逆;回向原處。 lean backwards 往后靠。 spell backwards 倒拼;誤解,曲解。 backward(s) and forward(s) 忽前忽后;來(lái)回地。 go backwards 倒退,退步,墮落。 say backwards 倒說(shuō)。 adj. 1.向后方的,向后的。 2.倒的;反的,相反的。 3.落后的,晚的;遲緩的,慢的;進(jìn)步慢的。 4.愚鈍的;畏縮的,遲疑的,怕羞的。 a backward child 智力差(落于人后)的孩子。 The country is in a backward state. 那個(gè)國(guó)家是落后的。 Summer is backward this year. 今年夏天來(lái)得晚。 be backward in (preparations, duty) (準(zhǔn)備)遲緩;忽視(責(zé)任)。 adv. -ly ,-ness n. 落后,遲疑。
The critical jobs must be scheduled by the backward algorithm , which ensures the necessary resources allocated to the most important jobs ; then the remaining jobs are scheduled with a forward algorithm , which tends to allocate resources where the previous scheduling pass did not use them 算法中關(guān)鍵零件采用反向調(diào)度,盡可能地滿足交貨期要求;一般零件采用前向調(diào)度方法,利用剩余的車間資源,盡可能早完工。通過(guò)遺傳算法的全局搜索,得到最佳的調(diào)度結(jié)果。
In this thesis , we first introduce give the definition of hidden markov models . then the methods to solve the three basic problems in the application of hidden markov models are introduced , namely three basic arithmetic : forward - backward algorithm , viterbi algorithm , baum - welch algorithm . also we present commonly model of hidden markov processes dynamic system 在這篇論文中,首先給出了隱馬爾科夫模型的定義,接著介紹了隱馬爾科夫模型實(shí)際應(yīng)用中所面臨的三大基本問(wèn)題的解決方案,即隱馬爾科夫模型三大基本算法:前向一后向算法、 viterbi算法、 baum ? welch算法。