projection pursuit method 中文意思是什麼

projection pursuit method 解釋
投射追蹤法
  • projection : n 1 射出，投擲，發射，噴射。2 投射；投影，投影法；（地圖）投影圖製法；【電影】放映。3 凸出；凸出...
  • pursuit : n. 1. 追趕，追蹤；驅逐；追擊；追求。2. 實行；經營。3. 事務；職業，工作；研究。4. 〈美國〉【軍事】殲擊機，驅逐機 （＝pursuit plane）。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. This paper introduces the methods of hyperspectral images band selection based on the property of hyperspectral remote sensing images, utilizes the projection pursuit approach to find optimal solutions for a selected projection index based on dynamical evolutionary algorithm and then project a high dimensional data set into a low dimensional data space to produce a sequence of projection images, explores zero - detection method to threshold projection images to detect anomaly tar get

    摘要運用基於波段間相關性的高光譜影像波段選取方法進行波段的預選取，採用投影尋蹤的方法在動力演化演算法的基礎上尋找最佳投影方向，將高維數據投影至低維數據空間，在各投影分量圖像上採用零點檢測閾值化的方法進行異常目標的提取。
  2. For the bands selection of hyper spectral image, an algorithm called selected projection pursuit is established and a quick calculating method is developed, the calculating speed is increased 80 ( the bands number of hyperspectral image ) limes. the nonlinear principal curves is researched, it is the nonlinear expansion of pca

    針對高光譜圖像光譜波段的最優波段選擇問題，構造了選元投影尋蹤演算法，並為此建立了一種快速選元投影尋蹤演算法，使演算法的速度提高將近80倍（波段總數的倍數） 。
  3. Experiment data is analyzed with method of projection pursuit for more reliability and utility value. this paper first systematically studied energy dissipater of suspension girder in steep gradient with supercritical flow according to used in actual engineering and received perfect effect. experimental studies about the distribution velocity, the variation of water surface and pressure are undertaken

    然而，文章主要針對已獲國家自然科學基金資助，且已在實際工程實踐中產生了良好消能效果的陡坡急流懸柵消能工的部分試驗成果，進行了較全面深入地討論，即具體根據試驗資料系統分析了懸柵陡槽內泄水時的流速分佈、底板壓力分佈及水面線變化情況。
  4. Application of projection pursuit method to assessment of slope stability

    投影尋蹤新演算法在水質評價模型中的應用
  5. Estimation of restoration of annual runoff series by using projection pursuit method

    投影尋蹤法在徑流還原計算中的應用研究
  6. In chapter 3 we analyze a useful statistical method - projection pursuit ( pp ), including its basic theory and application. we put out definitions of projection index and projection pursuit, then prove that pca is a special case of pp with sample variance as projection index and list some indices often used. in section 3. 3 we apply pp with information divergence index to hyperspectral image, and demonstrate the advanced ability of it by the comparison between it and pca

    第三章圍繞一種新興的統計降維方法? ?投影尋蹤展開討論，概述投影尋蹤的一般理論，定義了投影指標和投影尋蹤的概念，證明了傳統的主成分分析方法是投影尋蹤的一個特例，證明了正態性與friedman指標為0的等價性；第三節針對高光譜圖像處理問題，從實例和理論兩個方面，論證了以信息散度為指標的投影尋蹤方法在提取信息的能力上優于以方差大小作為衡量信息量多少標準的主成分分析方法。
  7. Applications of projection pursuit method in economical appraisals of oil and gas development projects

    投影尋蹤模型在油氣開發項目經濟評價中的應用
  8. Abstract : some of the present models of forecasting zipingpu ' s flood can t fully discover the information in flood process and others are impractical. so a staistical method, projection pursuit regression is applied in forecasting peak flood and flood process. comparing with other models, the new one gets high precision and is easy to be operated in practice

    文摘:針對現有紫坪埔洪水預報模型或不能充分挖掘樣本信息或不便於實際應用的問題，現用投影尋蹤回歸方法建立了紫坪埔洪水預報模型，分別對洪峰和洪水過程進行了預報，並與其他方法進行了對比，取得了滿意的效果，可以作為紫坪埔洪水預報的新方案。
  9. On the method of choosing the type about interchange based on projection pursuit cluster model

    基於投影尋蹤模型的互通式立交選型方法
  10. This algorithm uses approximate entropy index ' s projection pursuit based on real coding genetic optimize algorithm ( rcgoa - pp ) to project the targets information hided in the high - dimensional data into low - dimensional space and then extract small targets with histogram image segmentation method

    該演算法用基於近似相對熵的實碼遺傳優化投影尋蹤方法（ rcgoa - pp ） ，有效地將高維數據中隱藏的目標信息集中投影到低維空間中，並用直方圖分割的方法提取出小目標。
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