查询词典 forecasting

Partial least-square regressive can give the most expositive elements to establish the forecasting model . Combined with proportion method , it can reflect the seasonal change factors causing the variation of electricity consumption , which makes the forecasting of monthly electricity consumption more accurate .

偏最小二乘方法能够提取若干对系统具有最佳解释能力的综合变量来建立预测模型，该方法与比重法结合应用于月售电量的预测之中，能更好地体现引起月售电量变化的平稳因素，季节突变因素的周期性，使得月售电量的预测更加准确。

Aiming at the major influencing factor of the logistics cost of coal enterprise as well as the non-linear characteristic of the coal enterprise logistics cost and the superiority that the neural network has in the solution of complex nonlinear system question, propos to use the BP neural network to do the forecasting of the logistics cost, establishs the forecast model of the logistics cost and do simulation and forecasting by frondose dates, the result indicates the precision of this forecast method is high, the convergent rate is quick, is one feasible forecast method.

重点针对影响煤炭企业物流成本的因素以及煤炭企业物流成本所具有的非线性特点和神经网络在解决复杂非线性系统问题方面所具有的优势，提出了采用BP神经网络来进行物流成本预测的方法。建立了基于BP神经网络的物流成本预测模型并应用具体数据对模型进行了模拟和预测，结果表明该方法预测精度高，是一种实际可行的预测方法。

The results show this forecasting method is effective for modeling and forecasting for gyroscopic drift.

预测结果表明，这种预测方法对于陀螺漂移建模及预报是可行的。

Chapter 2 introduces the current research situation of hydrological forecasting and emphasizes on the forecasting method of neural network.

第二章综述了水文预报问题的研究现状，就国内外对水文预报的各种处理方法进行了总结分析和比较。

The electricity price curve in electricity market possesses the features of multicycle and strong fluctuation, whereas there is evident error in the prediction by grey GM(1,1) model with exponential growth, for this reason the authors propose a period residual modification based grey price forecasting model, which not only inherits the advantages of grey model but also makes the forecasting curve fluctuated by means of smooth processing of original data, improvement of initial condition and period residual modification.

电力市场中的电价曲线具有多周期、跳跃等特性，而呈指数增长的灰色GM(1，1)模型预测误差较大，为此，文章提出了基于残差周期修正的灰色电价预测模型。

Due to the lack of data, the parameter of forecasting emergence of regional CBW is built by the traditional phenological model. With the standard of this, model parameter of forecasting occurrence of regional cotton bollworm is applied.

由于数据缺乏，采用传统有效积温的方法，建立了区域性棉铃虫羽化预测的参数，以此为标准，建立区域性棉铃虫发生期预测的模型参数。

Load forecasting for power system is one of the important task of power utilities. Accurate load forecasting is helpful to planning generators starting and stopping in the interior of the electrical networks economically and reasonably, preserving the security and stability of power system, reducing the unnecessary circumvolving repertory capacity, making planning to overhaul the units in reason, ensuring the normal production and life of the society, effectively reducing the cost of generating electricity, increasing the economical and social benefit.

电力负荷预测是供电部门的重要工作之一，准确的负荷预测，可以经济合理地安排电网内部发电机的启停，保持电网运行的安全稳定性，减少不必要的旋转储备容量，合理安排机组检修计划，保证社会的正常生产和生活，有效地降低发电成本，提高经济效益和社会效益。

Combinationforecasting colligates information of all kinds of forecasting method, so thismethod avoids losing information in single forecasting model and reducesrandomcity, improves the precision of predication.

针对运输问题&悖论&，论文提出了全新的运输问题的模型—变约束运输问题模型，并对变约束运输问题的求解方法进行了探讨。

The article proposes a method for Markov forecasting, it compartmentalizes the initial state of forecasting object by fuzzy clustering method according to the similarity of the object's data own, to determine the initial state probability and the condition transition probability matrix.

提出根据预测对象数据自身的相似度，采用模糊聚类方法对预测对象进行初始状态划分，确定初始状态概率和状态转移概率矩阵，进行马尔可夫预测的方法。

And, it establishes the computer model with the Scott·Henseleit method, which analyses and optimizes the ventilation network and auto-creates the figures of the evading disaster and succoring disaster with the computer. The paper establishes the GM(1,1) gray forecast model, and forecasts the amount of gasemission of the laneway based on the history data, and then compartmentalizes the danger grade for the laneway. Utilizing the principle and method of cybernetics, the paper brings the feed-forward and feedback. controlling method on the hidden risk in the mine, namely, the double-loop model of forecasting and early- warning. Especially in the feed-forward forecasting, the paper adopts the one unit non-linear regression analysis and forecast method, and forecasts the hidden risk amount in the mine during some time, and compartmentalizes the hidden risk grade based on the history data.

论文中，利用斯考特·亨斯雷法建立计算机模型，对矿井通风系统进行解算和优化调节，并通过计算机自动生成避灾、救灾路线图；建立灰色GM(1，1)预测模型，对巷道瓦斯涌出量进行预测，进而对巷道中的瓦斯事故危险性进行危险等级划分；利用控制论的原理和方法，提出了煤矿通防隐患前馈——反馈控制方法，即预测、预警双环模型，采用一元非线性回归分析预测方法，对煤矿某一段时间内的隐患数量进行预测，并结合历史数据，对当前煤矿隐患排查处理状况划分等级，分别予以管理和控制。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。