The first model is a simple one-factor model in which the logarithm of the spot price of the commodity is assumed to follow o-u process which has a mean reverting character.

第二个模型称为双因子模型，它是在单因子模型的基础上加入了新的因子变量—便利收益率，并且假定便利收益率服从带有均值反转特性的O—U过程。

youdao

One dimension resources distribution problem is a typical example in the application of dynamic programming, and state variable is an important factor in constructing dynamic programming model.

一维资源分配问题是动态规划应用的一个典型例子，在建立动态规划模型时，状态变量是一个重要的因素。

youdao

As a model distributed according to management factor, the yearly salary system becomes a salary and encouragement one praised highly by state commercial bank.

年薪制作为按管理要素分配的一种模式，成为了国有商业银行推崇的一种薪酬和激励制度。

youdao

Their three-factor model is one of the most popular among researchers, though many now include momentum as a fourth factor.

WSJ: Supercharging Your Investment Portfolio

One way to employ a value tilt in a portfolio is to use the Fama-French Three Factor Model.

FORBES: Investing in Style with Index Funds

The most prominent feature of this new model is its Sidekick-like form factor, although the U140 eschews the swivel screen for one that slides up to a 30-degree angle at the touch of a button -- all the better to watch programs from its integrated satellite DMB receiver (complete with TV-OUT).

ENGADGET: Pantech's feature-packed IM-U410 multimedia phone