metric ratio 中文意思是什麼
metric ratio
解釋
公制比例-
Specially, based on risk - metric and factor variables, the author discusses multi - factor asset pricing model. in theoretical analysis, the author attempts to release the assumption of index ' s random walk, proves a portfolio selection model suitable for the linear index level moreover, based on assets un - exchangeable, the author brings forward asset pricing models for b - shares, h - shares and non - circulated - shares. the author also brings forward multi - factor asset pricing model based on risk - metric indices, such as coefficient of beta, standard variance, standard semi - variance, average absolute deviation, value at risk, and factor variables, such as circulated market equity, exchange ratio, short - term historical return
在理論分析時，作者嘗試放鬆指數水平滿足隨機遊走過程的假設，推導出指數水平呈線性趨勢的資產組合選擇模型；此外，作者基於資產不可交易這一假設，提出了b股、 h股和非流通股等情形的資產定價模型，並基於系數、標準差、標準半方差、平均絕對離差和風險價值等風險度量指標以及流通市值、換手率、短期歷史收益率等因素變量提出了四因素資產定價模型。 -
Abstract by setting up a network model of data aggregation and using a bit - hop metric to quantify energy costs in wireless sensor networks, we formally analyze the problem of area - based data aggregation and obtain that data aggregation will definitely be energy efficient when the relative difference between the average lengths of the two shortest paths, which are from source sensor nodes to the sink and to the aggregation node respectively, is not less than the ratio of data correlation to the number of source sensor nodes
摘要通過抽象出無線傳感器網路中區域數據回傳的網路模型，定量研究了區域數據聚合的節能條件，證明了先聚合再回傳比直接進行數據回傳所節省的相對路徑長度，如果大於等於數據相關性與源節點個數的比值時，區域數據聚合一定可以節省能耗，並進一步給出了當數據聚合點在網路的不同位置，或數據的空間相關性不同時，區域數據聚合的節能條件。 -
By redefining the cardinality of set, we establish the relationship between the domain / range ratio and the testability metric. pie model can help us doing white box test in unit test phase. based on the fault / failure model and conditional probability, a formula is found to get testability metric, with which we prove there is a max value in software testability metric
在單元測試階段可以運用pie模型幫助進行白盒測試，本文在軟體的錯誤/故障模型的基礎上，運用概率論中條件概率的相關知識，建立了可測試性的一個計算公式，並使用該公式證明了軟體的可測試度存在一個最大值。
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