降維 的英文怎麼說
中文拼音 [jiàngwéi]
降維
英文
dimensionality reduction-
Method of reducing dimensions for laplace equation ' s conformal transformation
方程的保角變換降維法The work of the paper mainly includes : ( 1 ) present a model for measuring the similarity between two hydrological time series. in this model, we adopt an intuitive dimensionality reduction technique for hydrological time series which is called piecewise average approximation ( paa )
主要工作包括： （ 1 ）提出了適合水文時間序列數據特點的相似性模型，採用簡單直觀的等時間間隔序列分段平均值技術（ paa ）作為水文時間序列降維方法。Feature selection and input dimension reduction are of paramount im - portance to transient stability assessment based on neural networks
輸入特徵選擇和輸入空間降維是基於神經網路暫態穩定評估的首要問題。A new fractal - based infrared image feature extraction method is presented and the detailed theoretic analysis and implement procedure of this algorithm is submitted and tested in some experiments. with the limitation of the line detection based on traditional hough transform that the information of the length and the end points of the line is unavailable, a new algorithm which makes use of the accessional strategy based on precognition information is put forward to meet the demand for more information of the line, simulation results show this method is effective. finally, the whole process of airport target recognition is presented and the result images are also given
使用分形方法提取目標的特徵，在知識指導下，提出了一種基於目標特徵模型的降維的形態學分形維數計算方法，對傳統分形方法進行了改進，從理論上推證了演算法的合理性，並對演算法進行了模擬分析；針對傳統hough變換無法獲得線段端點和長度信息的局限性，提出了一種基於目標特徵先驗知識的hough變換融合策略，通過引入目標先驗知識，可以有效地獲得直線信息；對信息多而復雜的機場目標採用基於知識的目標識別方法，使用置信度模摘要型實現不確定推理，對目標進行識別判斷，將知識貫穿于整個識別過程中，對目標進行了有效地識別。Nonlinear reductive dimension approximate algorithm for 0 - 1 knapsack problem
1背包問題的非線性降維近似演算法The method of bispectrum can extract characteristic of seismic series bispectrum and detect fracture zones by decreasing dimensions
雙譜法通過採用模式識別的方法對地震序列的雙譜提取特徵，通過降維實現裂縫發育帶的檢測。The paper abstracts out the palmprint mainline characteristic owing to palmprint image gradation by the gray value characteristic property method, defining the online palmprint characteristic space with the form of the polar coordinate and compressing the dimension, at last we use the neural network to accomplish the design of identification authentication system with the on - line palmprint as the mating algorithm. based on this, a fast and reliable system of identification authentication can be built
採用基於掌紋圖像灰度特性的方法提取出掌紋的主線特徵，以極坐標的形式定義在線掌紋的特徵空間並降維處理，最後用神經網路作為匹配演算法完成在線掌紋身份驗證系統的設計，以此為基礎建立了快速、可靠的新型身份認證系統。Continuous and categorical versions of the generalized association plot, statistical learning methods and nonlinear dimension reduction techniques, and latent class models will be integrated into a platform by combining clever computational algorithms and flexible statistical models
並將聯合應用精巧的計演算法則與靈活的統計模型，來整合連續型與類別型資料的兩種廣義相關圖、機器統計學習與非線性降維法、以及潛在類別模型等於同一平臺。The problems of reducing dimension, of multipurpose optimal decision, and of integration of qualitative analysis and quantitative analysis for the large system decomposition - coordination step model are primarily calculated
主要考慮了大系統分解?協調遞階模型的降維、多目標優化決策及其定性和定量相結合的一系列問題。Taking this large irrigation district as a reference, this paper studies the optimal scheduling of water resources in this district, mainly considering such problems as degrading dimensions of the decomposition - coordination for big system and optimal decision - making of multiple purpose
本文以大型灌區為對象，研究了灌區水資源的優化調配問題。主要考慮了大系統分解?協調遞階模型的降維、多目標優化決策等問題。On the basis of test results, the effects of operation parameters such as material thickness, heating temperature and pressure of drying chamber on vacuum freeze drying are discussed. aiming at decreasing drying time and reducing energy consumption, these parameters are optimized and optimization results agree well with actual results
在三因素二次正交回歸試驗的結果分析的基礎上，利用降維分析方法探討了凍干厚度、加熱板溫度和系統的真空度對乾燥時間和乾燥能耗的影響，並對混合加熱條件下單位水分能耗和凍干生產率進行了優化分析。18 dempster a, laird n, rubin d. maximum likelihood from incomplete data via the em algorithm
進一步，數據降維的結果可通過與兩個空間相關度量的最大似然解得到。In the beginning of chapter 2 the principles of the fixed reduced - rank methods and the constant false alarm rate ( cfar ) detection are described
本文的第2章首先介紹固定降維方法和恆虛警檢測的基本原理。After reduction, the effective numerical method is adopted to explore the response and stability information of the system, and the state of motion and type of the bifurcation are analyzed by floquet theory
降維之後，採用有效的數值計算方法分析系統的動響應和穩定性，利用floquet理論分析其運動狀態和分岔類型。1 ) term selection : the paper researches on term reducing and n - gram model
L ）特徵提取方面主要研究了特徵項降維和n元模型。Descending dimension algorithm for multi - objective programming with linear equality constraints
線性等式約束多目標規劃的一個降維演算法The exponential reduced - order observers for nonlinear systems
非線性系統指數型降維觀測器設計Abstract : the design problem of reduced - order state observer for a class of multi - input multi - output ( mimo ) nonlinear time - varying systems is studied in this paper. a new design method of nonlinear reduced - order state observer is proposed, and the exponential convergence is proved for the proposed state observer. the observer has the characteristics of that the speed of convergence is adjustable. finally, an example is given to show that this approach is effective
文摘:研究一類多輸入多輸出（ mimo ）非線性時變系統的降維狀態觀測器設計問題.提出一種非線性降維狀態觀測器設計方案，並從理論上證明了狀態觀測誤差的指數收斂性.其中設計的降維狀態觀測器具有收斂速度可調的特性.最後給出了數值算例，模擬結果表明了本文方法的有效性Standard face images are formed through the above - mentioned processing. during the feature extraction, for those standard face images, regarding the between - class scatter matrix as generating matrix, we extract the algebraic features of face images through k - l transform and singular value decomposition
在人臉特徵提取過程中，對經過預處理的標準人臉圖像，以類間散布矩陣為產生矩陣，通過k - l變換降維並結合奇異值分解來提取人臉代數特徵。Experimental results demonstrate that kpca is not only good at dimensional reduction, but available to get better performance than conventional pca, of which the correct recognition rate is up to 92. 5 %
實驗結果表明，核主成分分析不僅實現了降維，而且能取得比傳統主成分分析更好的識別性能，正確識別率為92 . 5 % 。分享友人