稀疏化 的英文怎麼說

中文拼音 [xīshūhuà]
稀疏化 英文
rarefaction
  • 稀 : Ⅰ形容詞1 （事物出現得少） rare; scarce; uncommon 2 （事物之間距離遠; 空隙大） sparse; scattered 3...
  • 疏 : Ⅰ動詞1 （疏通） dredge （a river etc ）2 （疏忽） neglect 3 （分散; 使從密變稀） disperse; scatte...
  • 稀疏 : few and scattered; few and far between; thin; sparse
  1. Second, this paper studied the core technologies for developing the cae system for construction curtain wall, such as sparse matrix storage and processor for fea, parametric design and engineering modeling and so on

    然後針對建築幕墻結構計算機輔助工程系統所涉及的與有限元分析相關的稀疏矩陣存儲及求解技術、系統參數化設計技術以及工程建模技術等關鍵技術進行了較深入的研究。
  2. Based on the clustering property of the basis function of sparse coding, a basis function initialization method using fuzzy c mean algorithm is proposed to help the energy function of sparse coding to converge to a better local minimum for recognition. experimental results show that the classification and the sparseness of the features are both improved

    經過模糊c均值聚類初始化后的基函數能夠讓稀疏編碼的能量函數收斂到一個更有利於識別的局部最小點，試驗結果表明特徵的分類性和稀疏性都得到了提高。
  3. These are the material bases for the desertization expanding that the earth ' s surface vegetation is sparsed, made - ups material is loosed, and sand source is abundant in mu us region

    毛烏素地區地表植被稀疏、組成物質鬆散、沙源豐富，為沙漠化擴展提供了物質基礎；而乾旱多風的氣候是沙漠化發展的重要因素之一。
  4. Figure 2. our harbour front promenades, such as this stretch in tsimshatsui east, are often quite barren with scant overhead vegetation canopy ; they can be more extensively planted with a coastal tree belt in the promenade - cap proposal

    維港海濱長廊，如在尖沙咀東部的這一段僅有稀疏樹木提供林蔭冠，建議中的長廊環抱維港植樹計劃應包括在此廣植樹木，並建設沿岸綠化帶。
  5. In the previous direct simulation monte carlo ( dsmc ) method used in the dilute gas - solid flow, particle collision probability was calculated by the equation used for rarefied gas molecules. and gas phase was simulated by the laminar navier - stokes equations

    已有的應用直接模擬蒙特卡羅（ dsmc ）方法模擬流化床內稀疏氣固兩相流動的研究中，均採用稀薄氣體分子碰撞概率的計算方法計算氣固兩相流中顆粒的碰撞概率，採用層流navier - stokes方程模擬氣相流動。
  6. This paper applies generalized multipler method to translate convex quadratic programs with equal constraints and non - negative constraints into simple convex quadratic programs with non - negative constraints. the new algorithm is gotten by solving the simple quadratic program. it avoids the computation of inverse matrix and exploits sparsity structure in the matrix of the quadratic form. the results of numerical experiments show the effectiveness of the algorithm on large scale problems

    根據廣義乘子法的思想，將具有等式約束和非負約束的凸二次規劃問題轉化為只有非負約束的簡單凸二次規劃，通過解簡單凸二次規劃來得到解等式約束和非負約束的凸二次規劃新演算法，新演算法不用求逆矩陣，這樣可充分保持矩陣的稀疏性，用來解大規模稀疏問題.數值結果表明：在微機486 / 33上就能解較大規模的凸二次規劃
  7. On the other hand, in the approach based on vector - matrix, through several special operations on vector - matrix, we have constructed a sparse ‘ 0 ’, ‘ 1 ’ parity - check matrix with dual diagonal matrix whose structure can easily construct the code. the simulation results have demonstrated the performance of this approach is similar to that of - rotation while the complexity is also higher. this problem is to be solved in the future research

    在基於矢量矩陣的結構化方法中，通過對矢量矩陣進行一系列特殊處理可以構造出稀疏的『 0 』 、 『 1 』校驗矩陣，而校驗矩陣中的雙對角結構易於構造出相應的ldpc碼字，模擬表明，採用矢量矩陣的結構化方法具有和-旋轉構造法相當的性能，但是實現的復雜度大於-旋轉構造法，同時碼率和碼長受到一定的限制，這也是未來需要研究的方向。
  8. It adopts the hierachical clustering in vocabulary vsm model because of its special function, on the other hand enriches the subcategory tagging information by rules, it can decrease me data sparse problem, and introduces the confidence intervals into the model for the selection of priority between statistics and rules

    另外還對標注模型從兩方面作了優化，由於詞匯特徵向量的特殊作用，本文對特徵詞匯採用層次聚類來提高其分類精度；另一方面，引入規則來進一步豐富細分類標注信息，減少數據稀疏等問題，並且引入置信度來選擇統計與規則的優先關系。
  9. Different from other rank reduction methods, such as pca ( principal component analysis ) and vq ( vector quantization ), nmf ( nonnegative matrix factorization ) can get nonnegative, sparse basis vectors which make possible of the concept of a parts - based representation

    與pca （主分量分析）和vq （矢量量化）等降維演算法不同， nmf （非負矩陣分解）演算法能夠分解出非負的，稀疏的特徵矩陣和編碼矩陣，能夠提取原始數據向量的局部特徵，使基於局部特徵進行分類的聚類演算法更容易實現。
  10. The machine has introduced the advanced verdol system, through which in accordance with its unlimited patterning possibility, the structure of knitted fabrics can be transferred from thin to tight, thus causing knitted fabrics to be varied infinitely and pattern to be changed quickly

    應用先進韋多爾式賈卡系統，可根據無限大的花紋循環，將底布從稀疏組織調整到緊密組織，底布變化無窮、變換花樣迅速。
  11. One is based on the discriminated matrics, the other is based on ga. we use many new ways to make the algorithms more effective, such as reducing dimension and sparsiting elements of the discriminated matrics, effectively selecting elements of the positive examples set and the counter examples set for the jointing - spreading matrics, using a new selecting operator, and so on

    其次，實現了基於粗集理論的屬性約簡方法? ?基於可分辨矩陣的屬性約簡法和基於遺傳演算法的屬性約簡法，並通過降維、稀疏化、正例集和反例集的有效選取、新的選擇運算元等方法對原演算法進行了改進。
  12. Qga combining the genetic algorithm and the quantum information theory has a large search space with small population and a good global search capability, while image sparse decomposition based on mp is an optimal problem, so it can be fast solved by qga

    量子遺傳演算法能用較小的種群規模實現較大的空間搜索，全局尋優能力強，基於匹配追蹤的圖像稀疏分解是最優化問題，因此可用量子遺傳演算法快速實現。
  13. In the development of neural network ? s architectures, a sparse coding is put forward

    在結構設計中，提出了稀疏化的編碼方法。
  14. On the other hand, adaptive method can save running time of iterations by increasing the sparsity of markov hyperlink matrix

    另一方面， adaptive方法通過將馬爾可夫超鏈接矩陣稀疏化以達到節省迭代時間的目的。
  15. 8 ndvi value in oasis is significantly higher than the value in desert, both of them have different rules in monthly variation. irrigation temperature and precipitation have effect on variation of ndvi in oasis, the correlation coefficients of sparse vegetation ndvi in desert with climatic and hydrological factors are insignificant and meaningless in practice. the drive factors of oasis ndvi are only adapted on oasis in arid land and are not fit to desert system in arid land

    8 、綠洲ndvi值顯著大於荒漠，二者具有不同的季節變動規律；灌溉、氣溫和降水是綠洲ndvi變化的驅動因子，荒漠稀疏植被ndvi與綠洲氣侯、水文因子相關不顯著或無實際意義；綠洲ndvi的驅動因子只適用於乾旱區的綠洲區域，而不適用於乾旱區荒漠系統。
  16. Sparse files allow data to be written to random locations within a file without instantiating previously unwritten intervening file blocks

    稀疏文件允許把數據寫到一個文件的任意位置，而不要將以前未寫的中間文件塊實例化。
  17. Dispersed technique has two parts ： one is storage and operation without zero ； the other is node numbering scheme

    稀疏技術有兩方面的核心內容：一是排零存儲和排零運算；二是優化節點編號。
  18. Part two introduces some known preliminary results which will be used frequently in the following text. after smoothing the solution to the rarefaction wave, we further give some decay estimates which plays an important role in the following estimate

    第二部分主要介紹了本文所需要的一些已知結果，在對稀疏波進行光滑化處理后，進一步給出了關于光滑稀疏波的一些衰減估計，這些衰減估計在後面的估計中起著重要的作用。
  19. This paper studies the least redundant solutions of two - dimensional array system by using the simulated annealing algorithm. two ideal thinning solutions for the two - dimensional circle array were discussed intensively in this paper. one solution uses half - circle configuration with very much reduced number of elements and taking an image by rotating the array ; the other selects element positions around the full circle to provide a roughly uniform coverage in the spatial frequency domain

    在一維天線陣設計的基礎上，本文利用模擬退火演算法給出了兩種最小冗餘二維圓環天線陣的結構設計方案，一種方案利用天線旋轉，在半圓周內稀疏天線；另一種方案通過將空間頻率采樣點的均勻分佈作為優化的約束條件，在全圓周上使天線單元分佈達到最優。
  20. There are several problems in traditional systems from the current b2c website electronic commerce personalization recommendation system : data sparsity, the commodities which are purchased or rated by users only occupy the total commodity number about 1 % ; new project problem, the new user and the new commodity which doesn ’ t be purchased or rated can ’ t be recommended ; solely recommend means, long data processing and low recommendation precision

    本文通過對當前b2c網站的電子商務個性化推薦系統分析，發現傳統的推薦系統有如下問題:數據稀疏性問題，用戶購買或評分的只佔總商品數的1 %左右;新項目問題，對于未被購買或評分的新商品、新用戶一般不能進行推薦;推薦方法單一、數據處理耗時過長以及推薦精度不高的問題。
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