geometric average 中文意思是什麼
geometric average
解釋
比例中項-
To solve the inaccuracy problem caused by the two existing methods ( average end - area method and prismoidal method ) used for the calculation of roadway earthwork volume, this paper puts forward a new concept of the 3 - dimensional algorithm that takes all the roadway geometric design procedures as a kind of geometrical operation between the ground model ( original terrain model ) and the roadway model ( designed model ) under certain constraints, and then presents a complete 3 - dimensional algorithm of roadway earthwork volume as well as its executable computer program. the algorithm benefits from the re - triangulation technique of constrained delaunay triangulation ( cdt ), which can yield a true volume value theoretically. through a number of practical tests covering varied intervals between adjacent cross sections, it is proven to possess a higher accuracy compared with that of traditional methods. all the work involved in this paper indicates that the 3 - dimensional calculation of roadway earthwork volume is feasible, more accurate and should have further application in practice
針對目前廣泛使用的道路土方量計算方法平均斷面法和稜柱體法計算不準確的缺點，提出了三維土方量計算演算法的概念.該演算法以帶約束的狄羅尼三角化（ cdt ）為技術核心，認為所有道路幾何設計過程都是地面模型和道路（設計）模型進行幾何運算的結果.基於此，本文設計出相應的演算法步驟，同時完成了相應的軟體開發，使得該三維演算法能和傳統的方法進行對比.此外，結合工程實例，採用了不同的道路橫斷面間距對三維計算方法和傳統方法的誤差進行比較、分析.結果證明三維演算法具有更好的精度，該演算法可用於道路、場地平整等工程土方量計算 -
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。 -
The arithmetic mean expectation model is not able to measure the income of portfolio investment correctly as bonds are a kind of successive investment, but the geometric average expectation can measure the income of successive investment
摘要由於證券是一種連續投資，算術平均收益率並不能完全反映投資的收益情況，而幾何平均期望收益率才能反映連續投資的實際收益。 -
In order to adapt the maintenance activities well, this paper makes some ameliorations, as follows : ( 1 ) it is considered not so pertinent in this paper to take road user cost into account of total cost, and an advice of using pavement serviceability performance for benefit is given. ( 2 ) when evaluating the average of the road network serviceability, this paper put forward to using weighed geometric mean to calculate pqi. ( 3 ) bringing in a new idea of checking the reasonability of classifying pavement state and typical measure by transfer probability
為盡可能使其反映實際的養護規律，本文在前人研究的基礎上，提出以下改進： （ 1 ）在建立費用模型時，認為在我國現階段，考慮用戶費用有不妥之處，提出以路面使用性能作為用戶費用的映象，以路面使用性能作為效益的評價指標； （ 2 ）在評價路網平均服務水平時，提出用加權幾何平均值來計算路面使用性能綜合評價指標pqi ； （ 3 ）提出了利用轉移概率檢查狀態的劃分和典型措施的合理性的新思想； （ 4 ）在求解markov決策模型時，通常使用的方法是線性規劃法，本文闡述了另外兩種求解的方法：策略迭代法和整數規劃法。 -
The comparison between continuos random variables and power function distribution and some strong limit theorems of geometric average
連續型隨機序列與冪函數分佈的比較及幾何平均的若干強極限定理 -
The pricing formula of barrier option based on the geometric average assets
障礙期權推廣到幾何平均資產情況下的定價公式 -
Pricing of asian options with discrete geometric average in the jump - diffuse process
跳躍擴散型離散幾何平均亞式期權的定價
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