prior knowledge 中文意思是什麼

prior knowledge 解釋
先驗知識
  • prior : n 普賴爾〈姓氏〉。adj 1 〈用作前置定[修飾]語〉在前的；優先的。2 〈與 to 連用〉在…之前 （opp post ...
  • knowledge : n. 1. 知識；學識，學問。2. 了解，理解；消息。3. 認識。4. 〈古語〉學科。5. 〈古語〉性關系。
  1. The difficulties lie hi that there is any disturbance of yawp, character conglutination, and character rupture etc. the paper first presents some methods that adopt prior knowledge of the license plate, perpendicular projection, and minimum character area and so on

    車牌圖像的單字元分割即把車牌的整體區域分割成單字元的區域，以便后續進行識別，車牌字元分割的難點在於噪聲和字元粘連、斷裂對分割的影響。
  2. He made the decision without my prior knowledge or consent.

    他瞞著我做出了決定。
  3. All of above presents the data to study the algorithm which will be used to detect the targets against the broadened bragg lines. eigenstucture - based algorithms are used to realize bearing resolution on the basis of synthetically comparing several classical algorithms. first sea echo ’ s bearing prior knowledge is utilized to constitute project operator to constraint the noise subspace estimation with the use of constrained music algorithms, which largely increases the resolution and doa estimated accuracy

    為檢測海上目標的方位信息，在綜合分析比較各類演算法的基礎上，本文採用特徵結構類演算法來實現空間方位分辨中的constrainedmusic演算法，此方法充分利用了海浪的方位先驗信息來構造投影運算元約束噪聲子空間的估計，大大提高了目標解析度和估計精度。
  4. Under the condition that the carrier frequency is the only prior knowledge, various feature abstraction methods and amr algorithms are analyzed, integrated and compared for the awgn and non - awgn channels

    在載波頻率是唯一先驗知識的條件下，本論文分別對awgn通道和非awgn通道下的調制類型特徵提取和自動識別演算法進行了分析、綜合、對比。
  5. To accurately unmarshall the xml representation of a collection, consumers must have prior knowledge of the original concrete types

    為了準確地解組集合的xml表示，客戶必須預先了解原始的具體類型。
  6. At the school, knowledge is " actively constructed by the learner on a base of prior knowledge, attitudes, and values. " sophisticated technology is in place to support the pursuit of knowledge

    在該校，知識是： 「學習者基於在原有知識的基礎上，利用正確的態度，標準的職業技術教育準則很靈活的構成的。 」採用先進技術的技術很恰當的支撐這一知識。
  7. 5. non - intelligence factor, prior knowledge and intelligence factor can cause striking indirect effects on their achievements by learning strategy, and non - intelligencefactor alse cause indirect effect by prior knowledge

    非智力因素、原有知識和智力因素分別通過學習策略對學業不良生學業成就產生明顯的間接效應：非智力因素還通過原有知識對學業成就產生間接作用。
  8. The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  9. Abstract : the conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    文摘:常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  10. But the frequent use of training sequence is certainly a waste of channel bandwidth. research shows that with the prior knowledge of only the signature waveform and timing of the user of interest, blind adaptive multiuser detector can effectively detect data symbol of the desired user without training data sequence for every active user

    在傳統多用戶檢測技術基礎上，自適應多用戶檢測利用訓練序列在僅知道期望用戶地址pn碼及其定時信息條件下就可以進行檢測，不足的就是訓練序列佔用了額外的頻率資源。
  11. The greedy search strategy may let search trapped in a local maximum. the additional language bias produces good search effect only when the target rules match it, which is not applicable for the fact that the prior knowledge about the structures of target rules is usually lack in data mining task

    貪婪的搜索策略可能使演算法陷於局部優解，語言偏向的添加也只對與其相適的目標規則的搜索有良好的效果，不適于數據挖掘這種目標規則構成先驗知識少的任務環境。
  12. After teaching the chapter of function, we once did a questionaire to the first grade senior student in high school, the analysis result show that the student have n ' t had deep understand to the concept of function, in their mind, there exists prior knowledge, which keep them away from the practical - questions with function concept well, there is still some distance between their realization of concept and convey of the conceptual symbols

    在學習函數這一章節后，我們曾對高一年級學生進行了一次問卷調查，調查結果發現，學生對函數概念理解不夠深刻，明顯存在「先驗知識」 ，不能很好地運用函數概念解決實際問題，在對概念的認識與概念符號表達上存在一定的距離。
  13. Based on the prior knowledge of flight navigation control, a combined navigation system is achieved by integration of dgps, magnetometer and atmosphere data computer

    基於飛行導航控制的先驗知識，對dgps 、磁航向計、大氣數據計算機等飛行導航傳感器獲取的飛行狀態信息進行綜合處理，實現了組合導航控制。
  14. Usually, the attribute weight is subjectively determined according to policy - maker ' s prior knowledge and the delphi method and the analytic hierarchy process are two commonly used methods

    摘要通常，指標權重的確定方法是根據決策者的先驗知識來確定的，其中比較常用的方法有德爾菲法及層次分析法，這些方法受決策者主觀因素的影響太大。
  15. The attenuation indexes of vertical direction components and level radial components of blast earthquake wave in the condition of far range are all larger than the one in the condition of close range. based on upwards analysises, relevant control ways and safety defending technology of blast vibration are given from the aspects of blast equipments, blast parameters, landform physiognomy, blast methods. and taking the practical data from blast scene as the sample, the blast shockproofness are forecasted by the feedforward nerve network model based on the prior knowledge of blast shockproofness, the regress analysis method and experience formula method, which supply the technology gist for

    並且，以爆破現場的實測數據為樣本，採用基於爆破震動強度先驗知識的前饋網路神經模型、回歸分析法及經驗公式法分別對爆破震動強度進行了預測研究，為爆破施工參數的確定提供了技術依據，確保整個爆破工程順利安全進行，並對這三種方法的預測結果進行了對比分析;對比分析表明，三種預測方法計算出來的結果精度相差甚大，從檢驗樣本值與預測結果值之間的相對誤差可以看出，人工神經網路法預測的結果較其他方法更接近於實際值，回歸分析預測法的精度又要高於經驗公式預測法。
  16. In additive white gaussian noise ( awgn ) channel, we introduce a method for synchronization of symbol timing and frequency for two - dimensional spread spectrum system without prior knowledge of spread spectrum matrix

    摘要針對加性白高斯噪聲通道，考慮未知二維擴頻矩陣的條件下，提出了一種二維擴頻系統的時頻同步方法。
  17. First, it is very fast with a roughly linear time with respect to network size. second, it exhibits a good clustering capability and especially can work well with complex networks without well - defined community structures. finally, it is insensitive to its built - in parameters and requires no prior knowledge

    盡管目前已存在多種復雜網路共體挖掘演算法最早的工作是girvan和newman提出的基於邊介數的gn演算法，但其中絕大多數都是針對只包含正關系的復雜網路提出，對符號網路並不適用，因此如何快速和準確地挖掘符號網路共體仍然是一個未被很好解決的問題。
  18. Teachers plan instruction that draws on and values students ' backgrounds, prior knowledge, and interests

    教師要利用和重視學生的背景，知識基礎以及興趣計劃教學。
  19. The nonrecursive algorithm is proved to terminate in finite steps and turn out to be a constant vector too. because two modifications estimated models are asymptotically uniformly nonsingular, thus the possible singularity in the adaptive pole placement systems is completely avoided. however the prior knowledge required is only the observability indices of systems, thus, the required prior knowledge is greatly reduced

    非迭代的修正策略證明了參數修正向量在有限步內收斂於一個常向量；上述兩種修正策略均保證了估計模型的一致能控性，從而徹底解決了自適應極點配中可能出現的奇異性問題，而所需的先驗知識僅為系統的能觀性指數。
  20. This thesis proposes a new effective scene clustering method which can automatically decide the stop point without prior knowledge

    本文提出了一種新的有效的場景聚類演算法，無需先驗知識，自動決定演算法停止點。
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