度量向量空間 的英文怎麼說

中文拼音 [dùliángxiàngliángkōngjiān]
度量向量空間 英文
metric vector space
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 度量 : 1. （計量長短） measure; metric; mensuration 2. （寬容人的限度） tolerance; magnanimity
  • 空間 : space; enclosure; room; blank; interspace
  1. Now, simplified calculating methods of vertical frame and horizontal framed bent for plate structure are mostly used in this structure design. for the complex distribution of quality and rigidity of this structure, the calculating method of space turning coupled pair should be considered as a complemental checking calculation for this kind of irregular structure

    該類結構設計目前大多採用縱向框架、橫向框排架的平面結構簡化計算方法，由於該類結構質量和剛度分佈復雜，對於此類不規則結構尚應採用考慮空間扭轉耦聯的計算方法進行補充驗算。
  2. Image motion compensation ( imc ) is the key technology of high - resolution space camera. image motion speed is seperated into two vectors in image coordinate for the existence of the drift angle : the forward direction image motion speed and the crosswise image motion speed. in fact, drift angle control eliminates the crosswise image motion speed, so it is a part of image motion compensation

    在空間照相，由於偏流角的存在，使得像移速度在像面坐標系存在兩個分量：前向像移速度和橫向像移速度，偏流角控制本質上是消除橫向像移速度，因此，偏流角控制是空間相機像移補償的一部分。
  3. Each segment of line current can be approximated as a hertzian dipole if each segment is much smaller then a wave length

    因此任意線電流在三度空間之三維向量電磁場即可以赫芝電偶極完整之遠場及近場近似合成之。
  4. Based on the principle of afm ’ s mechanism, with the needs of 6 - dof parallel robot with cubic millimeter movement space and nano - scale movement accuracy, and considering the openness, scope bound and reliability of the adjustment device, this paper build a super - exact device for the measurement of nona - scale surface

    本論文在借鑒原子力顯微鏡原理的基礎上，結合具有立方厘米級工作空間、納米級運動解析度的6 - dof並聯工作臺的實際測量需要，綜合考慮了系統的開放性、掃描范圍和調節裝置的可靠性，研製了面向納米測量定位的高精度表面納米級形貌測量樣機。
  5. It can give vector of stress, and break factor and direction vector of tensive crack and shearing crack in the special observation planes ( for examples, in a stratal surface which is fluctuant in depth )

    軟體可視化包括：空間應力矢量（大小和方向） 、裂縫性態（張裂縫和剪裂縫發育程度及其方向矢量）在特定觀察面（如沿起伏的地層面）上的展示。
  6. These pages can be divided into two classes : one is relevant pages r, another is unrelevant pages r. taking use of the difference of local weight between r and r, we choose the term with most difference as character term

    利用術語在r和r中的局部權重的不同，選擇權重差別最大的那些術語作為特徵術語，以確定和調整向量空間的維度，在降低向量空間維度的情況下，盡量保持模型的準確性。
  7. There are two kinds of retrieval model, full text retrieval and content retrieval, and the vector space model ( vcm ) of the latter is a widely - used method with better effect. the best excellence of vcm is the predominance of knowledge presentation, which expresses documents with vectors in vector space and changes the comparability issue to the distance of vectors, and thus reduces the complexity of documents matching. however. we can not affirm the absolute effect of it, and in this thesis we prove its nonproficiency through experiments

    向量空間模型最大的優點在於知識表示方法上的巨大優勢，用n維空間的向量表示文檔，用向量之間的夾角表示文檔的相似度，從而將文檔信息的匹配問題轉化為向量空間中的矢量匹配問題，將難以計算的文字量化成很容易計算的實數，使問題的復雜性大大減小。但是，並不能夠說目前的向量空間模型是最理想的，本文通過實驗證明了vcm表達信息的不精確性。
  8. Firstly, to perform pca or lda on basis of such high - dimensional image vectors is a time - consuming process. secondly, the high dimensionality usually leads to singularity of the within - class covariance matrix, which is a trouble for calculation of fisher optimal discriminant vectors

    這樣就從根本上避免了在高維的圖像向量空間內構造散布矩陣並計算特徵向量的困難，大幅度地降低了特徵抽取過程所耗費的計算量。
  9. To fulfill the requirement and characteristics of this track, which include paragraph - based and a relevant document supplied by user before retrieval, the rocchio model and vector model are merged to compute relevance between query and document. then, gradient decrease method is used to train the parameters of rocchio model. then, based on the paragraph - level relevance, the sorted documents are returned

    本文針對文本檢索大會子項目的要求和基於段落的，用戶查詢時可能提供一篇相關文章的查詢特點，首先將rocchio模型和向量空間演算法結合起來來把握用戶需求並計算文檔與查詢的相關度，再使用梯度下降技術來訓練模型中的參數，最後依據查詢和段落層的相關度，使用基於段落切分的方法返回包含用戶查詢最相關文章。
  10. All the contents are developed around a set of scaling laws taking the form of exponentials which relate to almost all the issues of complexity including fractals, chaos, strange attractors, localization, and symmetry breaking, etc. the main work can be summarized as follows : starting from the law of allmetric growth three fractal dimensions in a broad sense are derived, and according to these dimensions, geographical space is divided into three levels, i. e., real space, phase space, and order space, each of which corresponds to a kind of dimension. based on the idea of spatial disaggregation and using the rmi ( relationship - mapping - reversion ) principle, the urban system is formulated as three scaling laws of the three spaces, including number law, size law, and area law, which can be transformed into a set of power laws such as allometric law and zipf ’ s law associated with fractal structure

    從異速生長律的縱向、橫向和切向三個角度將地理空間劃分為實空間、相空間和序空間，分別對應于空間系列、時間序列和等級序列三個層面，每個層面的測度各有自己的空間維度。基於「空間循環細分-等級體系-網路結構」的數理等價關系，利用rmi （關系-映射-反演）原則，成功地實現了城市系統宏觀模型的理論抽象，將空間復雜性問題表徵為簡單的指數式標度定律（包括數量律、規模律和尺度律） ，這一組標度律可以與一組冪次定律（包括具有分形性質的規模-數目律、異速生長定律和三參數zipf定律）互為變換。
  11. In the paper, based on the existing literature research foundation an analog circuit catastrophic fault location approach by using feedforward networks with back ? propagation learning is realized. by this approach, the simulation require ments before test are reduced because fewer training samples are needed, and the fault location process is fast. this method is very efficient in location of single hard fault wit component tolerances. the measureme nt space feature and the general characterization concept of single and double soft fault in linear circuits are presented. according to this concept, a linear circuits soft fault location approach using subhidden layer bpnn is established with element tolerance, and it is shown that this approach is successful in fault location. a double fault feature extraction.,

    本文在現有文獻理論研究的基礎上實現了採用bp演算法前向多層神經網路對直流測試下模擬電路硬故障的診斷方法。其特點是採用少量典型特徵樣本作為bp網路的訓練樣本，獲得訓練樣本的代價小，減少了測前工作量，同時診斷速度快，在考慮元件容差時仍有好的診斷效果。文中介紹了線性電路單一軟故障和雙軟故障所具有的電壓增量空間特性和統一特徵概念。
  12. A smoothing technique is combined with optimum approximation and finite element piece - wise interpolation in the method, it can simultaneously process measured vector components, imp ro ve smoothing capability of solution, space composed of original discrete points and increase the accuracy of the solution, especialy its derivatives

    該方法結合最佳逼近、有限元分片插值與光順技巧，對測量向量各獨立分量進行處理，改善了原離散點構成的解空間的光滑性，提高了解尤其是導數場的精度，在測量區域內再現了光順向量函數及連續的導數。
  13. The wetland habitats for many wild animals were seriously affected by this change and the habitat pattern had an obvious change, too. the area of suitable habitat ( sd 0. 35 ), which had reduced by 7637 hm2 in the ten years, was becoming smaller and more fragmented, with deteriorated quality. for red - crowned cranes, the area with high spatial diversity values ( sd 0. 65 ) and that with mid - high values ( 0. 5 sd < 0. 65 ), which constituted the main part of suitable habitat of red - crowned cranes, had reduced by 9232 hm2 and 15584 hm2 respectively, with the shrinking of natural land cover, such as reed and suaeda

    研究區野生動物生境格局受人為和自然干擾的雙重影響而發生了較為明顯的變化，整體趨勢是生境適宜性逐漸降低，適宜生境和較適宜生境（ sd 0 . 35 ）的面積十年間減少7637hm ~ 2 ，丹頂鶴的適宜生境（ sd 0 . 65 ）和較適宜生境（ 0 . 5 d < 0 . 65 ）面積分別減少9232hm ~ 2和15584hm ~ 2 ，且生境的破碎化程度加深，在空間上呈現由北向南海向推進、由東向西壓縮之勢，生境質量呈下降趨勢。
  14. This paper discusses the existent typical ranking technologies of term frequency count and hyperlink analysis, in virtue of vector space model, the author proposes a new ranking technique, document similarity ranking, with a basis on similarity of concept - semantic query term

    對現存典型的詞頻統計排序技術和超鏈分析排序技術進行了分析，並藉助向量空間模型，提出了一種基於概念語義的查詢詞-文檔相似度排序方法。
  15. 1 tejada s, knoblock c a, minton s. learning domain - independent string transformation weights for high accuracy object identification

    針對這樣的商品名字採用基於字元或者基於向量空間的相似度計算不是一個好的方法。
  16. Lsa is similar to vector space mode ( vsm ), representing textual materials with space vectors. lsa can advance the accuracy of subsequent processes by using a truncated singular value decomposition ( svd ) to remove the influences of synonymy

    在技術上，它同向量空間模型類型類似，都是採用空間向量表示文本，但通過svd分解等處理，消除了同義詞、多義詞的影響，提高了后續處理的精度。
  17. 14 tan c m, wang y f, lee c d. the use of bigrams to enhance text categorization. journal of information processing and management, july 2002, 38 : 529 - 546. 15 ruiz m, sinivasan p. neural networks for text categorization

    使用我們提出的權值計算方法對每個待測文檔和主題模板中的特徵頻繁項目集進行打分，並以此權值為基礎在向量空間模型中計算待測文檔和主題模板之間的相似度，最後達到文本分類的目的。
  18. Lsi comes from the field of information retrieval. it transforms the original vector space to abstract k - dimension semantic space. so the huge dimensions of the original vector space are reduced greatly, also the training speed and system performance are improved

    系統中引入了信息檢索中的常用技術? ?潛在語義索引，把原始向量空間轉換到抽象的k維語義空間，實現原始向量空間的降維，提高網路訓練速度和性能。
  19. There are three means to decrease the number of attributes : delete irrelevant attributes to the task using fisher ' s discriminant ratio ; merge correlate attributes according to pearson ' s correlation coefficient ; reduce the dimensionality of the attribute vector by singular value decomposition

    在屬性選取時根據fisher函數把對分類影響小的屬性刪除，由pearson ' scorrelationcoefficient將相關聯的屬性合併，用singularvaluedecomposition減少屬性向量空間的維度。
  20. Gradient - based multidisciplinary design optimization methods can not be used directly to problems with discrete and integral design variables or with disjoint design space, and they have a propensity to converge to a relative optimum closest to the starting point

    摘要現有基於梯度的多學科設計優化演算法難于處理具有離散和整數設計變量、設計空間非凸或不連通的多學科設計優化問題，並且傾向于收斂到接近初始點的局部最優點。
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