token n. 象征,記號,標記;表示物,證物;紀念品;代幣,代價券;【語言學】語言符號;【英史】私鑄貨幣;【圣經(jīng)】前兆;暗號。 adj. 作為標志的;象征性的。 a token of love 愛的象征。 as a token of=in token of. by (the same) token 據(jù)此看來;而且,還有;更加,越發(fā)。 by this [that] token 照這個[那個]看來。 in token of 作為…的標志〔表示,證物,象征,紀念品〕。 more by token 〔古語〕 = by the same token . reduce ... down to token contingents 把…裁減[縮減]到象征性的限額。
generation n. 1.代〔約30年〕,世代,時代;同時代的人。 2.一代[一世]。 3.生殖,生育;發(fā)生,產(chǎn)生。 4.【數(shù)學】(面、體、線的)形成。 5.完善化階段,完善化方案,完善化的模型;發(fā)展階段。 a generation ago 約三十年前。 alternation of generations 【生物學】世代交替。 the present generation現(xiàn)代;現(xiàn)代人。 the last [past] generation上一代。 the first generation第一代 (the first generation university students 第一代大學生). future generations 后代。 the beat generation“垮掉的一代”〔美國青年中的頹廢派〕。 the rising [coming] generation下一代。 the younger [older] generation年輕[年老]的一代。 for generations 一連好幾代,祖祖輩輩。 generation after generation = from generation to generation 世世代代。
This can lead to some security issues should the token generation mechanism or header generation mechanism become easily counterfeited 這可能會產(chǎn)生一些安全問題,偽造標記或header的產(chǎn)生機制會變得很容易。
The traffic model and a suit of differential equations presenting the status of the system are given first, from which an objective function is derived, and then the transmission is optimally controlled by the neural network which is characterized by nonlinear map and the particle swarm optimization algorithm which is characterized by stochastic optimization, namely the neural network is employed to generate variable rate of token generation, and the particle swarm optimization algorithm with inertia weight is employed to optimally train neural network in the form of finding a sub-optimal resolution in acceptable computation time 本文給出了傳輸控制的系統(tǒng)模型及其系統(tǒng)各狀態(tài)的差分方程表示,由此推導出了系統(tǒng)的代價函數(shù)。然后利用神經(jīng)網(wǎng)絡的非線性映射的功能和基于概率尋優(yōu)的粒子群優(yōu)化算法對系統(tǒng)進行優(yōu)化控制,利用神經(jīng)網(wǎng)絡控制令牌桶的可變令牌產(chǎn)生速率,利用帶慣性權(quán)重的粒子群優(yōu)化算法對神經(jīng)網(wǎng)絡的權(quán)值進行優(yōu)化訓練,使其在可以接受的時間內(nèi)達到次優(yōu)解。
In order to prove its feasibility and superiority, a segment of mpeg-4 encoded streaming video is used for simulation . the experimental results and analyses show that this method outperforms the traditional ones that are based on the fixed token generation rate in the same condition of network throughput 通過選取的一段mpeg-4編碼的流媒體視頻實驗數(shù)據(jù)進行了仿真實驗,通過實驗結(jié)果數(shù)據(jù)的分析和對比可以看出,該控制方法在網(wǎng)絡輸出能力一定的條件下,比傳統(tǒng)的人為設置固定的令牌產(chǎn)生速率的方法所達到的效果要好的多。