[Methods] Exponential curve was employed in studying time series of typhoid and paratyphoid(1997-2003) and incidence rate of year 2004 was predicted based on the prediction model.
[方法]对伤寒、副伤寒发病率时间序列(1997~2003)采用指数曲线拟合,并对2004年伤寒、副伤寒疫情作出预测。
Based on the data feature of oversea tourist in Jiangsu province from 1998 to 2005,three forecast models are adopted separately,namely the back-propagation neural network model,the GM(1,1) model and the exponential curve model.
本文根据1998年~2005年江苏省入境旅游客源数据特征,采用BP神经网络模型、GM(1,1)模型以及指数曲线模型分别进行预测,然后结合这三种预测方法的特点,提出非负权重组合预测模型,通过实例运算的对比分析,证明组合预测模型具有很高的准确性。
A compaction curve of rockfill stuff on the spot is fitted by using a negative exponential curve.
对高填石路堤地基变形的计算 ,采用能同时考虑剪切变形和压缩变形的修正邓肯 -张模型 ;对填石层的变形 ,则采用负指数曲线来拟合现场压实曲线。
In this paper, an algorithm named the method of cyclic search is suggested to make full use of observed values to determine the initial values of parameters during double exponential curve is fitted in the meaning of least square by means of Gauss Newton method.
提出了在最小二乘意义下用 Gauss-Newton法拟合双指数曲线时 ,充分利用观测值确定参数初始值的一种算法——循环搜索法 。
Based on a few existing temperatures data, it is possible to predict the temperatures by means of the exponential curve method and the results of prediction show that the forecast model is very effective.
应用指数曲线法建立了预测硫化矿石堆温度的数学模型。
time-contrast-index curve
时间-反差指数曲线
Harvard ABC curve
(三项指数曲线) 哈佛ABC曲线
An exponential curve, eg on a graph indicating population increase
指数曲线（如人口增长示意图上的）
Parameter Estimation and Error Aanalysis of Forecasting Model of Exponential Curve;
指数曲线预测模型的参数估计与误差分析
Application of Simulated Annealing Algorithm in Exponent Curve Fitting;
模拟退火算法在指数曲线拟合中的应用
Application of RAGA-based exponential curve model in prediction of pile limit bearing capacity
基于RAGA的指数曲线模型预测基桩承载力
Use to indicate an exponential curve. Select the shape on the page to add text.
用于指示指数曲线。在页面上选择形状，以添加文本。
producibility index log
生产率指数测井曲线
Returns an array of values that describes an exponential curve calculated in regression analysis to fit your data
返回一指数回归拟合曲线方程的参数
The index tendency of Shenzhen and Shanghai stock market predicts the curve graph in 2001
2001年深沪两市指数走势预测曲线图
Effect of Seismic Intensity Measure Function to the IDA Curves Dispersion
烈度指标函数对IDA曲线离散性的影响
Settlement curve prediction method-index of deformation process method
沉降曲线预测方法-变形过程指数法
(mathematics) of a function or curve; possessing one or more discontinuities.
（数学）指函数或者曲线；有一个或多个中断的地方。
The application of the risk curve profit exponential method in the real estates risk assessment;
风险曲线盈利性指数法在房地产风险评估应用
Study on Calculating Methods of Centralization Index of Space Lorentz Curve;
空间罗伦兹曲线集中化指数的计算方法研究
APPLICATION OF ROC ANALYSIS ON PREDICTION OF BODY MASS INDEX FOR HYPERTENSION
ROC曲线分析在体质指数预测高血压中的应用
The Realization of Real Time Curves of Risk Index Used in Synthesis Ssfety Evaluation and Decision System on Coal Mine
煤矿监评系统中风险指数实时曲线的实现
Study On The Site Index Guiding Curve Model Of Larch Plantation
落叶松人工林地位指数级导向曲线模型的研究