...特征指标；训练样本 [gap=652]Keywords：civil construction project；cost estimation；BP neural network；characteristic indexes；training samples ...
基于62个网页-相关网页
Second, we estimate and calculate the value of the nonlinear characteristic index in Chinese security market and analyze the market’s long-memory effect and information-accumulate effect.
然后,估算中国证券市场的非线性特征指标值,分析其长期记忆效应、信息累积效应。
参考来源 - 证券投资的非线性理论研究及其在中国证券市场的实证分析·2,447,543篇论文数据，部分数据来源于NoteExpress
对该产品进行了失效分析，给出了可靠性的特征指标。
It also presents failure analysis of the product and reliability characteristic index.
状态特征指标对机械的状态监测和故障诊断具有重要意义。
There are a wide variety of condition monitoring techniques currently used for the recognition and diagnosis of machinery faults.
根据近期客运市场调查数据，确定客运服务要素的4个特征指标。
Based on the latest survey of passenger transport marketing, 4 characteristic indices of passenger transport service ingredients are determined.
应用推荐