optimum threshold 中文意思是什麼
optimum threshold
解釋
最佳門限-
This paper adopts an adaptive learning algorithm based on hierarchy clustering to update user profile, which continuously abstract the cancroids of one class of optimum information from the feedback flow of system, which effectively shield the learning process from plenty of feedback noises produced by distorted threshold and sparseness of initial information, which also can imitate artificial feedback approximately to perfect the intelligence of adaptive learning mechanism
摘要本文採用一種基於層次聚類的自適應學習策略，從系統反饋的信息流中，動態提取一類最優信息的質心更新用戶模型，有效屏蔽了閾值失真和初始信息稀疏造成的大量反饋噪聲，並且能夠近似模仿人工反饋，完善自適應學習機制的智能性。 -
( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold
通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。 -
This paper deduces the optimum threshold expression under certain cost rule and relationship between the number of pulse accumulation and the increased ratio of echo ' s snr
本文推導了最佳門限電平的表達式和脈沖積累對回波信號信噪比的改善能力。 -
To analyze some key technologies of optical network relative with rwa in detail, such as transmission, switching and internetworking ; to emphasize on the research of function, fabric and performance of optical cross - connection ; to carry out numerical simulations for crosstalk introduced by optical cross connect and to present measurements for suppressing it such as doubly filtering, fixing optimum decision threshold and appropriately choosing the number of multiplexed wavelengths ; 3. to research the fundamental principle and some problems relative with rwa, including the type of optical network, the type of traffic, the type of service, the survivability of optical network ; to classify and compare rwa algorithms and particularly research some dynamic rwa algorithms ; 4. to present reserved light - path and classify network resource such as used, unused and reserved status, to emulate establishment of all - optical connection in optical network through modified rwa algorithm and show effectively reducing setup time of all - optical connection utilizing reserved light - path ; to research rwa algorithms of multi - fiber network, to present new link weight functions dependent on node degree, unused fiber ( s ) per wavelength - layer and routing policies, to perform emulation of rwa based wavelength layer graph applying new link weight functions and show them make algorithms better performance and network lower blocking rate ; 5
詳細分析了與rwa相關的光網路關鍵技術，包括傳輸、交換、組網等，重點研究了光交叉連接的功能和結構、性能，對其引入的串擾進行了詳細分析，選擇恰當的器件參數進行了數值模擬，並提出了抑制措施（如雙重濾波、優化判決門限、選擇恰當的復用波長數） ; 3 .研究了光網路的r認叭的基本原理、與r認叭的幾個相關問題（光網路類型、業務類型、流量類型、光網路生存性） 、 r認人演算法的分類和比較，具體研究了幾種動態r場人演算法; 4 .研究了以全光連接建立時間為優化目標的r認認演算法，提出預置光路的概念，對網路資源進行狀態分類（佔用、未佔用、預置） ，利用改進的r認叭演算法模擬，預置光路可為部分新到的連接請求快速建立連接，從而提高網路性能;研究了以多光纖網路連接阻塞率為優化目標的r認城演算法，提出了以節點度數、每個波長分層的空閑光纖數以及路由策略決定的幾種鏈路權重函數，利用基於波長分層圖模型的并行r場人演算法模擬，利用新的鏈路權重函數使得演算法具有更優的性能，使網路具有更低的連接阻塞率。 -
In order to study the problem of the optimum of the probability threshold value, we use two ways in markov to solve the problem
為研究概率閾值最優化的問題，利用馬爾可夫策略，採用兩種方法求解最優策略。 -
Abstract : based on weapon locating radar, this paper discusses detection performances of its sequential detection system in detail firstly. optimal method is applied to obtain its optimum threshold and criteria
文摘:以某型炮位偵察校射雷達為實際工程背景，詳細討論了其序列檢測系統的檢測性能，並應用最優化方法得出其最佳門限和最佳判定準則。 -
The main work completed in the paper is listed as following : 1. image function acquisition -, 2. read bmp files by dib format ; 3. drawing gray scale histogram ; 4. choose a optimum threshold and make gray image become binary image -, s. find image ' s contour points by making inner points become empty and apply template matching on the contour points ; 6. transform the object ' s beginning points ( pixel point ) to the ones in the image coordinate and the positions of in the corresponding three dimensions ; 7. compute the position vector and the normal vector of the object
選擇一個最佳闋值，把灰度圖像進行二值化處理； 5用掏空內部點法，找到圖像的輪廓點，然後在輪廓點上進行模板匹配； 6把輸出的目標物開始點（像素點）轉化成圖像坐標系中的點和對應的三維空間的坐標位置； 7計算目標物的位置矢量和法向矢量，根據機器人抓取面的法向矢量，找到機器人要抓取的平面； 8 -
There are two ways to enhance the radar ' s detection performance : ( 1 ) for certain signal to noise ratio, choose a optimum detection threshold, whose false decisions producing minimum cost under the preset cost rules ; ( 2 ) basically reduce the false decision probability by increasing echo ' s snr
雷達在噪聲背景中檢測信號是一個概率問題，提高雷達的檢測能力可歸結為如下兩個途徑： （ 1 ）在信噪比一定的情況下，選擇一最佳門限，使其在一定風險準則下錯誤判決產生的「代價」最小。 （ 2 ）提高回波信號的信噪比，從根本上減小錯誤判決的概率。 -
As a result, the concept of optimum signal threshold ratio was proposed to improve the ranging accuracy of the lidar and its computational formula was also presented in this paper
通過改變接收信號強度，對不同信噪比、不同信號門限比條件下大量測距實驗結果進行了分析，驗證了最佳信號門限比的存在。 -
Then, on the basis of coupled wave equations, theoretically studies of opo threshold parameters and of the conversion efficiency and of linewidth control are presented. several principles of the optimum design for opo are discussed. the experimental investigations of noncritical phase matching
以耦合波方程為基礎，分析和計算了光學參量振蕩器的轉換效率、抽運閾值、譜線寬度等特性，並在此基礎上討論了如何選擇opo的各項參數。 -
According to the properties of glass defect image, a image segmentation method of edge detection based on optimum threshold is presented in this paper
摘要根據玻璃缺陷的特點，提出一種採用迭代最優閾值與數學形態學相結合的方法對玻璃缺陷圖像進行分割。 -
The second is use future threshold value probability. base on the markov optimization of the threshold value probability we introduce future threshold value changeable with time serving as a variable under the new state. the threshold value probability is maximized and the optimum strategy of markov is extracted
第二種方法是基於未來閾值的方法，在馬爾可夫閾值概率最優化的問題上，對于以馬爾可夫轉移的本來狀態變量，引入隨時間而變化的將來的閾值，並作為新的狀態變量，在其新的馬爾可夫轉移的基礎上，把所給予的閾值概率最小化，從中得到最優馬爾可夫策略。 -
After the discussion of several kinds of optimum threshold segmentation methods, a multi - feature vector space and three new criteria ( global comparison detection, geography priority privilege, equal opportunity for competence ) are developed for region growing control, a new region growing method is brought forward. at last the region splitting and merging, region clustering, neural networks, snake active contour model et al have been discussed
提出了全局比較探測、面積測定及空間優先、競爭機會均等三個有效的準則，利用灰度、紋理多特徵矢量改進了傳統的區域增長演算法，並對紋理分析，神經網路分割和snake活動輪廓分割進行了有益的探索。 -
Further more, the existence of the optimum signal threshold ratio was verified through experiments under different signal threshold ratio and the experiments showed that the optimum signal threshold ratio of our lidar was about 1. 8
在一定的實驗條件下，最佳信號門限比的取值在1 . 8附近，實驗結果與理論計算吻合良好。 -
The purpose of mdp is to select a good control steategy. this article discusses the arithmetic problem of the optimum solution under the new principle. this principle is called probability threshold value
本文在一種新的準則下討論決策的最優解的演算法問題，在文中我們稱之為概率閾值準則。
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