assignment n. 1.分給,分配。 2.指定,委派。 3.(理由等的)陳述;(錯誤等的)指出。 4.(財產、權利的)轉讓,讓與。 5.讓與證書,委托證書。 6.〔美國〕任命;任務,工作;(課外)作業。 give students assignments 給學生留作業。 He left for his assignment in the Middle East. 他去中東赴任。
At last we study the network surviving problem in wdm network with partial wavelength conversion . based on the layered graph , a routing and wavelength assignment algorithm based on qos in survivable wdm network is proposed . this results show that this algorithm can not only meet the different qos requirements of the client layer ’ s service , but also utilize the finite networking resources efficiently with the reduced blocking probability 首先研究了部分波長可變wdm網狀網中的網絡生存性,而后結合分層圖模型提出了一種在動態業務情況下的支持不同qos要求的路由波長分配算法,仿真結果表明該算法具有很好的性能,提高了全網的資源利用率,滿足了客戶層業務在建立光通路時不同的qos要求對網絡阻塞率的要求。
In this thesis , firstly , the basic conceptions and existing algorithms for rwa problem are introduced ; secondly , a research is made on a dynamic routing and wavelength assignment algorithm in wron considering wavelength relation in order to reduce the resources in networks , the blocking probability and the cost of wavelength assignment 本論文首先介紹了rwa問題的相關概念及常見算法;接著對動態業務條件下具有波長變換能力節點的波長分配算法進行深入研究。基于節約網絡資源和降低網絡的阻塞率和波長分配代價的思想,在wron網絡的動態路由波長分配算法中考慮波長相關性。
Simulation results show that the developed scheme performs well in terms of qos performance metrics such as the lightpath hop length and the network maximal link load . for ip over wdm networks consist of oxcs and routers , which are inter - connected by optical fibers , chapter 3 presents a novel routing and wavelength assignment algorithm based on k - shortest path 對于由大量路由器和oxc通過光纖互連而組成的ipoverwdm網絡,第三章創新性地提出了將ip層矛咣層綜合考慮進行:路由選擇,并利用k ? ?最短路由對有長度限制的請求進行資源分配的算法。
In this paper , we describe the study background , meaning and methods of passive acoustic detective network , summarize the basic theories and methods of target tracking and data association , analyze some tipical data association algorithms include the nearest neighbor algorithm ( nn ) , probabilistic data association filtering ( pdaf ) , joint probabilistic data association filtering ( jpdaf ) , multiple hypothesis tracking ( mht ) , and multidimensional s - d assignment algorithm . 2 . in detective network , sometimes a surveillance region have only single sensor 從整體上描述了無源聲音探測網絡的研究背景、意義、基本框架和研究方法,概述了目標跟蹤與數據關聯的基本理論與方法,重點分析了幾種典型的數據關聯方法,包括最近鄰方法、概率數據關聯濾波器( pdaf ) 、聯合概率數據關聯濾波器( jpdaf ) 、多假設跟蹤( mht )以及多維s - d分配算法。
Security constraints are consistent by modifying security constraint definition , and an effective classification assignment algorithm is given in this paper . we analyze the problem of inference channel and give solution to solve the problem during database analysis and design period . by analyzing the problems resulting from extending single - level transactions to multilevel transactions , we also give a multilevel secure transaction schedule algorithm based multiversion snapshot graph 本文提出采用主從結構表的方法對blp模型加以改造,使得改造后的blp模型具有較高的可用性和安全性;通過修改安全約束的定義,使得安全約束之間始終是協調的,并給出一種高效的密級分配算法;討論了推理通道問題,給出了在數據庫分析、設計等階段可以采用的對策;分析了事務從傳統的單級擴展到多級面臨的眾多難題,給出了一種基于多版本串行化圖的事務調度算法;根據上述理論,開發了一個多級安全數據庫管理系統的原型系統。
Next , a novel priority - based wavelength assignment algorithm in all - optical networks with partial wavelength conversion is proposed , based on link independent assumption and the method of calculating the network the blocks probability . it improves the routing and wavelength assignment presented by others . this algorithm fits the demand of different business for asking the grade of corresponding different services in the modern all - optical network than the original algorithm 其次研究了部分波長可變wdm網中支持優先級的波長分配問題,以及在此網絡中網絡阻塞概率的計算;基于鏈路波長占用獨立性假設,改進了在部分波長轉換wdm網中已有的rwa算法,提出了一種支持優先級的動態波長分配算法,該算法保證了較高優先級的光路建立請求具有較低的阻塞率,比原有算法更加適合現代光網絡中不同業務請求對應不同服務等級的要求。