查询词典 parameter estimation

The model adopts continuity equation, diffuse wave model, and the Mannings equation for surface runoff routing, while uses the Green and Ampt infiltration theory and Darcys Law for subsurface runoff treatment. Uncertainty analysis incorporating Monte Carlo simulation and a Maximum Likelihood Estimation and Efficiency Coefficient is used to retrieve optimal parameter values and to estimate the confidence interval for the simulation results.

目前已经完成模式中各相关模组的研发，包含利用DEMs 析取坡度、流向与集流面积；利用卫星影像评估土地利用类别；结合蒙地卡罗法、最大概似法与效率系数的参数率定器；以及整合Green and Ampt 的入渗理论、Manning 地表流速公式，Darey 定律和扩散波理论的水文演算模组。

By using a tree pictorial structure model to represent the detuned generic people in the video, and a modified Hidden Markov Model to simulate the motion of people between the two frames of the video, a machine learning method is used to the modified HMM to obtain the estimation of parameter of the modified HMM,and to capture the people model from the video.

利用片图模型表示未经学习的人体，改进的隐马尔可夫模型模拟人体在视频序列各帧间的运动，并使用机器学习方法对该改进的HMM进行推理，获取改进HMM的参数，从而获得所需的人体模型。

Firstly, this method previews the matching block and then acquires enough inliers using RANSAC algorithm, secondly, it estimates the global motion estimation parameter using LS algorithm.

该算法计算速度快，比传统的RANSAC算法利用了尽可能多的内点，并能克服传统LS算法易受错误匹配结果影响的缺点。

In the given observation sequence, optimizing every model with Viterbi algorithm, with baum-welch algorithm to re-estimate parameter, and the re-estimation formula is also provided.

在给定的观测序列中每一种模型的优化路径通过Viterbi算法实现，用Baum-Welch算法实现参数重估，并给出了重估公式。

This algorithm is implemented by a low complexity upward-downward procedure and the parameter re-estimation is implemented by gradient descent.

给出了优化过程中梯度计算的上行－下行算法和基于梯度下降的参数重估公式。

The parameter re-estimation algorithms of MDHMM and MCHMM are also discussed, and relatively simulations of the two models are made, in theories and simulations which present the accuracy and superiority of those HMMs.

还讨论了两种新模型MDHMM和MCHMM的参数重估计算法，并进行了相应的模拟实验，从理论和实验结果论证了新模型的精确性和优越性。

Parameter identification process, based on in-situ displacements, can really help to obtain reliable estimation of such parameters.

基于现场观测位移的参数反演方法是获取这些参数信息的一个很重要的手段。

The thesis tends to investigate the establishment of the insurance cycle score and business cycle of the premium of new business. We utilize six kinds of different insurance of new business to be our investigate object, that including ordinary life insurance, group life insurance, individual health insurance, group health insurance, personal accident insurance and group accident insurance. Besides observing fluctuate of the firsthand information, we used the maximum likelihood estimation to estimate the unknown parameter of Markov switching models. Try to cognizance the peak and the trough of business cycle.

本研究在探讨保险新契约之保费的景气循环状况与景气分数的制定，其中我们利用六种不同的保险新契约保费当研究对象，包括个人人寿保险保费、团体人寿保险保费、个人健康保险保费、团体健康保险保费、个人伤害保险保费和团体伤害保险保费，除了观察原始资料的波动外，亦采用最大概似估计法来估计马可夫转换模型的未知参数，尝试著去认定景气循环的高峰与谷底。

Continuous operation of GPS-based observation networks zenith tropospheric delay estimation model and parameter selection, and its impact on the estimated results of the study.

对基于连续运行GPS观测网络的对流层天顶延迟估算模型和参数的选择，及其对估计结果的影响进行研究。

Continuous operation of GPS-based observation networks zenith tropospheric delay estimation model and parameter selection, and its impact on the estimated results of the study.

如果合适的话追加20分。对基于连续运行GPS观测网络的对流层天顶延迟估算模型和参数的选择，及其对估计结果的影响进行研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。