First, neural networks, mathematical models and rule models are constructed based on statistical data and empirical knowledge.
首先基于统计数据和经验知识，建立神经网络，数学模型和规则模型。
Finally, through mathematical models and empirical analysis we will discuss the cost impact on trading volume and volatility in stock index futures market.
最后，通过建立数理模型、实证分析来说明交易成本对股指期货市场交易量和波动性的影响。
Basing on the former studies on housing rent, this paper USES relative mathematical models and economic statistics to do the empirical research.
本文在以往学者们对住宅租金研究的基础上，运用相关数学模型和经济数据进行了实证研究。
There are three kinds of mathematical models for describing the process i. e. the empirical, the semi-empirical and the theoretical models.
目前主要有三种模型用来描述谷物的干燥过程，即经验模型、半经验模型和理论模型。
There are three kinds of mathematical models for describing the process i. e. the empirical, the semi-empirical and the theoretical models.
目前主要有三种模型用来描述谷物的干燥过程，即经验模型、半经验模型和理论模型。
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