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bayesian network     
相关语句
  贝叶斯网络
    It takes listed companies of 2001 in China as research sample, defines 11 financial ratios that can reflect financial crisis of listed companies by analyzing the sample companies' financial data from 2001 to 2003, sets up a Bayesian network to find the financial early-warn of listed companies by the method of Bayesian network analysis and constructs a warn-forecasting model of financial position based on the sample companies' financial data from 2001~2003.
    以2001年我国上市公司为研究样本,通过对2001~2003年样本公司的财务数据分析,确定了能反映上市公司财务危机的11项财务比率.运用贝叶斯网络分析方法,建立了能发现上市公司财务危机的贝叶斯网络.结合2001 ~2003年样本公司的财务数据,构建了上市公司财务预警模型.
    Study of Determining Bayesian Network Topology Structures
    贝叶斯网络拓扑结构确定方法的研究
短句来源
    The Application of Bayesian Network in Causal Map
    贝叶斯网络在因果图中的应用
短句来源
    Bayesian network based on information theory and immune genetic algorithm
    基于信息论和免疫遗传算法学习贝叶斯网络结构
短句来源
    Research on Human Resource Management Evaluation Model Based on Bayesian Network
    基于贝叶斯网络的人力资源管理评价模型的研究
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  bayesian网
    Simplification on Bayesian network inference
    Bayesian网推理中的化简方法
短句来源
  bayesian网络
    Modeling E-commerce website quality management based on Bayesian network
    基于Bayesian网络的电子商务网站质量管理模型
短句来源
  “bayesian network”译为未确定词的双语例句
    Dynamic Linear Regression Modeling and Real-time Prediction Based on Bayesian Network and Neural Network
    基于贝叶斯-神经网络的动态回归建模与预测
短句来源
    Bayesian Network is natural compact graphical representation of joint probability distribution, which can express a potential dependent relationship among uncertain variables and can exploit the structure of the domain.
    贝叶斯网是自然、紧凑的联合概率分布的图形表示形式,反映了变量间的潜在的依赖关系,揭示了领域对象的内在结构。
短句来源
    Utilizing listed companies data in 2003 to validate the model that the study has set up, the rate of accuracy is up to 92%. The results indicate that Bayesian Network early warning model for financial failures has the higher rate of accuracy.
    建立模型之后,本文通过2003年深市和沪市上市公司数据样本对所建立的财务预警模型进行测试,准确率达到了92%,结果证明获得了该财务预警模型具有良好的预测效果。
短句来源
    I analyzed the main influencing factors to operational risk of commercial bank in China based on the data and designed the Bayesian network model.
    接着,在已有的数据的基础上,分析我国商业银行操作风险损失的主要影响因素,并构建模型。
短句来源
    Applying the Bayesian network,the model was developed,and the overall quality was presented as the central node with the sub-characters as the root nodes.
    该模型基于用户感知的质量,以总质量作为中心结点,可以直接测量的质量子属性为网络根结点。
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  bayesian network
This paper addresses issues in constructing a Bayesian network domain model for diagnostic purposes from expert knowledge.
      
Tailored-to-Fit Bayesian Network Modeling of Expert Diagnostic Knowledge
      
The object class is generatively modeled using a simple Bayesian network with a central hidden node containing location and scale information, and nodes describing object parts.
      
Our algorithm is implemented in a commercial Bayesian Network software package, AgenaRisk, which allows model construction and testing to be carried out easily.
      
In particular, to determine Jeffrey's prior for this model family, we show how to compute the (expected) Fisher information matrix for a fixed but arbitrary Bayesian network structure.
      
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It is well known that d-separation can identify conditional independence in Bayesian network. Pearl J, Dechter R~[6] proved d-separation criteria is sound in causal graphs with feedback assuming V is discrete variable set and the state space of V is finite. In this paper it is shown that their conclusion is valid only under certain constraints on the causal equations and under the same constraints, their conclusion is generalized by computing the probability distriubution to the situation in which the...

It is well known that d-separation can identify conditional independence in Bayesian network. Pearl J, Dechter R~[6] proved d-separation criteria is sound in causal graphs with feedback assuming V is discrete variable set and the state space of V is finite. In this paper it is shown that their conclusion is valid only under certain constraints on the causal equations and under the same constraints, their conclusion is generalized by computing the probability distriubution to the situation in which the range of V is in the discrete but infinite state space. Counterexamples show when the above constraints does not hold or V is continuous, the d-separation criteria is not valid any more.

在本文中,直接利用计算概率分布的办法证明了在只包含离散变量的反馈系统产生的因果图中的条件独立关系可以由一分离识别出.

The Bayersian approach is an important method in statistics. A Bayesian network is a graphical model that encodes probabilistic relationships among variables of interest. The Bayesian approach is employed for data mining and a model is set up based on graph theory. Finally experimental results are given to demonstrate that the method is effective.

贝叶斯方法是概率统计学中一种很重要的方法 .贝叶斯网络就是根据各个变量之间概率关系用图论方法建立的模型 ,本文将概率统计的贝叶斯规则应用于知识发现 ,建立图论模型进行数据挖掘 ,文章最后应用贝叶斯网络对于实际的数据库进行知识发现 ,其结果说明了这种方法的有效性 .

The Bayesian method and its learning mechanism from the view of machine learning is explored. The Bayesian leaning approaches for different conditions such as complete data, incomplete data as well as uncertain network structure are discussed. It shows that Bayesian network is a powerful tool in data mining. An example from reality is given.

从机器学习的角度研究贝叶斯方法及其学习机制 ,着重讨论了具有完整数据、不完整数据集 ,及在结构不确定时贝叶斯网络进行学习的方法 ,表明贝叶斯网络在数据采掘中是一个有力的工具。文后给出一个基于贝叶斯网络的学习的实例。

 
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