叉樹 的英文怎麼說

中文拼音 [chāshù]
叉樹 英文
n-ary tree
  • 叉 : 叉動詞[方言] （擋住, 卡住） block up; jam
  • 樹 : Ⅰ名詞1 （木本植物的通稱） tree 2 （姓氏） a surname Ⅱ動詞1 （種植; 栽培） plant; cultivate 2 （樹...
  1. Adaptive cartesian grid based on an omni - tree

    基於復合叉樹的自適應笛卡爾網格應用研究
  2. Chapter nine, ten and eleven develop the discrete methods to price exotic options, in which chapter nine prices exotic options using the shooting target gird method, chapter ten prices the options using improved shooting target gird method when the underlying asset obeys cev process, and chapter eleven prices the double lookback options using five - bifurcation tree method. in the last chapter, application of option pricing theory is studied in executive stock option plan

    第九、十、十一章研究的是用離散方法對變異期權進行定價，其中，第九章是用打靶格法對一列變異期權進行定價；第十章，用改進的打靶格法對標的資產的價格服從cev過程的變異期權進行定價；第十一章用五叉樹模型對雙回望期權進行定價。
  3. 2. professional drawing database the cpcad develops a city planning professional drawing database on multi - fork tree structure through which can easily manage and use the standard drawing block in common use. 3

    專業圖形庫管理本系統開發了一個基於多叉樹結構的城市規劃設計專業圖形庫，來管理與使用城市規劃設計中用到的標準、規范的圖塊。
  4. A binary tree - based and dyadic indicated codification method is proposed in the digital watershed model ( dwm )

    摘要在數字流域模型中提出了一種基於二叉樹理論，並以二元形式表示的河網編碼方法。
  5. Firstly the patterns of the multifingered hands are detailed, eight patterns are defined. the classical bayes method is used in the classification of pre - grasp of multiple fingers based on three patterns which are grasping, holding and pinching. based on the eight pre - grasp patterns, bp neural network is applied in the classification of the pre - grasp of multifingered hands and gets a good effect. the method solves the shortcoming input sample relying on the propobility density and simplified the un - insititution characters extraction. in this paper, support vector machine ( svm ) and binary - tree with clustering is applied in the classification. this method can solve the slow speed and effect with fewness sample in the classification, achieving a good effect. in this papper, we extract the characters of the regulation object with geometry characters and extact the unregulation object with the image analysis

    此法解決了輸入樣本依賴物體的概率密度的特點，簡化了分類特徵提取的不直觀性。本文還採用了支持向量機（ svm ）和聚類二叉樹相結合的方法對機器人手預抓取八類模式進行分類，解決了預抓取模式分類訓練速度過慢以及在分類中樣本數量偏少而影響分類效果的問題，得到了較高的正確率。本文對預抓取幾何形狀規則的物體採用直接提取其幾何特徵，對于預抓取幾何形狀不規則的物體採用圖像分析的方法進行特徵提取。
  6. Octrees algorithms were focal point of the subject

    八叉樹演算法是本課題的研究重點。
  7. Fractal coding has been proved useful for image compression. it is also proved effective for content - based image retrieval. in the paper, we present a block - constrained fractal coding scheme and a matching strategy for content - based image retrieval. in this coding scheme, an image is partitioned into non - overlap blocks of a size close to that of a query iconic image. fractal codes are generated for each block independently. in the similarity measure of fractal codes, an improved nona - tree decomposition scheme is adopted to avoid matching the fractal codes globally in order to reduce computational complexity. our experimental results show that our coding scheme and the matching strategy we adopted is useful for image retrieval, and is compared favorably with other two methods tested in terms of storage usage and computing time

    分形編碼在圖像壓縮方面取得了很好的效果，同時，分形編碼也能夠用於基於內容的圖像檢索.本文提出了一種基於塊限制的分形編碼演算法和匹配策略，並將它們用於圖像檢索.在我們編碼演算法中，圖像會被預先分成互相不重疊的子圖像塊，然後對這些子圖像進行獨立地分形編碼，從而獲得整幅圖像的分形碼.該編碼演算法能夠在很大程度上減少編碼時間.在進行圖像間相似性的匹配時，我們採用改進的基於九叉樹的分配策略，從而避免全局地進行分形碼的匹配，減少了計算量.實驗結果說明，我們的編碼演算法和匹配策略能夠比較有效地應用於基於內容的圖像檢索，在計算時間和存儲時間上都優于實驗中其它兩種方法
  8. Ternary pricing model of european option in constant type

    定常型三叉樹歐式期權定價模型
  9. Trinary - tree pricing model of real options

    實物期權的三叉樹定價模型
  10. The analysis and comparison of the storage structures for trinary tree

    三叉樹存儲結構分析比較
  11. The paper gives a particular analysis on the core module of the option - adjusted model, that is the module of making interest scenes and the module of option characteristic behavior. combining the facts of our country the paper analyzes the applicability of the model. the paper simulates the process of calculating the effective duration and convexity with hull and white ’ s interest term structure and trinomial interest rate tree model

    文章著重分析了期權調整利差的兩個核心模塊，即利率情景製造和期權特徵行為模塊以及其中涉及的模型在我國的適用性，並用hull和white的利率期限結構和三叉樹的方法模擬演算了一項具有隱含期權的假設資產的有效持續期和有效凸度的求解過程。
  12. The techniques related terrain lod is systematically studied based on the quadtree data structure. combining the data block attemperation idea, we solved the data integrating and preculling problem, presented the boundary constraining solution, and calculated the collision detection for rambling

    本文在四叉樹結構的基礎上較為系統的研究了地形相關lod技術，結合數據分塊調度思想，解決了數據連接和預裁剪問題，給出了邊界約束問題的解法，並針對漫遊計算了特定的碰撞檢測。
  13. First, we have expatiated the working principle, performance parameters and major technologies. farther, we have analyzed the shortcomings of the existing catalog search engine and introduced the clustering analysis and the ant algorithm ; on the basis of this, we discussed the possibility and necessity of the connection between them, which avoids the local optimization of the clustering analysis to a degree. in the end, we appraise the idea that we deal with the information data by the data structure of the binary tree, m - branch tree and tree established by the ant algorithm, which can improve the efficiency of the search engine

    首先闡述了搜索引擎的工作原理，性能指標，主要技術；分析了現有目錄式搜索引擎的缺點，接著介紹了聚類分析演算法與螞蟻演算法的理論，並論述了二者結合的可能性和必要性，這種結合方法也在一定程度上克服了聚類分析演算法容易陷入局部最優的缺點，最終提出了通過使用螞蟻演算法建立二叉樹、 m叉樹和樹作為信息數據處理的思想，大大提高了搜索引擎搜索的效率。
  14. This thesis gives a brief account of the basic theories of software engineering and computer graphics, of the data structure of individual component modeling, of the design of the software structure and of the method of realizing software. meanwhile, this thesis put more emphasis on the exploration of the arithmetic of the delaunay triangle network, nurbs curve integration, the filling - in arithmetic of triple - tree, and the arithmetic based on the scan - line arithmetic and the filling - in of complex section

    文章介紹了關于軟體工程學與計算機圖形學的基本理論及其各組件模型的數據結構、軟體結構設計與軟體實現的技術方法，並重點討論了基於約束條件的delaunay三角網格化演算法、 nurbs （非均勻有理b樣條）曲面擬合、三叉樹等值線填充演算法和基於掃描線的復雜剖面填充演算法。
  15. As the hard core of this paper, this chapter gives a frame which will help us to understand the new economic evaluation method of oil - gas projects better at first, then discusses the binomial model and the parameters estimating methods of abandon real options in the exploring phase, the partial differential equation model and the parameters estimating methods of the shut - down real options in the developing phase respectively. in the course of ascertaining the parameters estimating methods, this chapter discusses the application of a mathematic method - the monte carlo simulation in this article particularly

    做為全文的核心，先提出勘探項目經濟評價新方法研究的總體框架，然後具體討論確定勘探階段放棄期權的二叉樹實物期權模型與參數確定方法、開發階段停啟期權的偏微分實物期權模型與參數確定方法，在參數確定過程中，詳細闡述了蒙特卡羅模擬這一數學工具在本論文方法中的應用；第五，案例分析及方法應用探討。
  16. We can observe good estimate accuracy with it. in other words, we can decrease the probe packets and get accurate link - level loss estimates. both the multi - stripe packet and three - leaf tree mode can get fruitful inference of

    包群方法與三叉樹模型都能在保證一定估計精度的基礎上，減少探測包的數目，從而減小由於發送探測包對網路流量和負載帶來的影響。
  17. Evading risk in financial trading market cries for pricing options to a nicety. asian option, as the most flourish options in the finace market, the pricing has been focused on always. the exact pricing formula for the geometric average asian option had existed, but as to the european - style arithmetic average asian option, due to the dependence structure between the prices of the underlying asset, no analytical formula exists. on the hypothesis that the market is frictionless and without transaction costs 、 on the base of b - s ’ s and in the binomial tree model, we provide several algorithms for computing an accurate value of the european - style arithmetic average asian option. following rogers and shi and by jensen ’ s inequality, many different upper and lower bounds are provided ; meanwhile a formula have got by the comonotonicity and approximating the distribution function. all of the algorithms are easy for programming. with the development of computer, more accurater price can be computed quickly. and numerical example proved that these algorithms are very accurate

    對于幾何平均亞式期權它的定價相對簡單，已經給出了定價公式。對于算術平均亞式期權，它的未定權益具有軌道依賴特性，一直沒有得到它的定價方程的解析解形式。本文基於對市場是無摩擦且在沒有交易費用的情況下，在b - s模型下，利用二叉樹模型給出了算術平均亞式期權定價方法;並總結了利用jensen 』 s不等式給出的各種不同情況下的上下界;同時應用共單調性和近似分佈函數的方法也給出了算術平均亞式期權價格的近似公式。
  18. Full binary tree

    滿二叉樹
  19. Framed - quadtree approach not only guarantees the connectivity of environment structure model, but also deal with complex terrain instances and truly reflects terrain detail color

    賦值外框四叉樹方法不僅保證了環境構造圖的連通性，而且可以處理地形中復雜情況並比較真實地反映地形的細節面貌。
  20. The famous algorithms include roam, vdpm, adaptive triangulation based quadtree and the improved algorithms of them, etc. however, the improvement of the present algorithms mainly focus on the selection of data structure which can speed up generation of the tmrm, few works were put into ameliorating the simplification criterion, hi fact, the simplification criterions used by the algorithms at present are constructed with only two elements which are the distance the vertex from the viewpoint and the roughness of terrain expressed by z coordinate

    地形多解析度模型的生成演算法種類較多，著名的有：自適應優化格網演算法（ roam ） 、基於視點的累進格網法（ vdpm ） ，基於四叉樹的自適應剖分演算法以及基於各演算法的各種改進演算法等等。但目前人們對演算法的更新及改進主要是從數據結構的角度來考慮，對簡化準則沒有做實質性的改進。
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