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## prior probability

• 先验概率，事前机率

### 网络释义专业释义英英释义

[数] 先验概率

事先概率

... 先验界限：a priori bound 先验概率;事先概率prior probability 先验分布：Prior distribution ...

前概率

random prior probability [数] 随机先验概率

vague prior probability 模糊事前机率

更多收起网络短语
• 先验概率 - 引用次数：23

The C4.5 method used information entropy to build the classification model without assuming prior probability was stable.

C4.5决策树方法利用信息熵来构建分类模型,无须假设先验概率的稳定。

参考来源 - 基于决策树的流量分类方法
• 先验概率 - 引用次数：9

It collects information by market investigation, amends the prior probability, and consequently increases assurance of the investor on future success, so that the risk of decision-making is reduced.

它通过市场调查增加信息量，对先验概率进行修正，从而提高决策者对未来可能性的把握，达到降低决策风险的目的。

参考来源 - 基于贝叶斯决策理论的房地产投资风险决策研究
• 验前概率 - 引用次数：2

参考来源 - 迪昂
• 先验概率
预先概率
事先概率
先验机率
• 先验概率
先验机率

·2,447,543篇论文数据，部分数据来源于NoteExpress

#### Prior probability

• abstract: In Bayesian statistical inference, a prior probability distribution, often called simply the prior, of an uncertain quantity p (for example, suppose p is the proportion of voters who will vote for the politician named Smith in a future election) is the probability distribution that would express one's uncertainty about p before the "data" (for example, an opinion poll) is taken into account. It is meant to attribute uncertainty rather than randomness to the uncertain quantity.

### 柯林斯英汉双解大词典

#### prior probability

• 1.

N the probability assigned to a parameter or to an event in advance of any empirical evidence, often subjectively or on the assumption of the principle of indifference 先验概率 [statistics] → compare posterior probability

### 双语例句权威例句

• First, the occurrence of all the system states is considered to have an equal possibility and for each component in the diagnosis system set a prior probability.

该模型首先假设系统所有状态可能发生系统中的各个元件设定一个先验概率

• In the process of recognition, the prior probability is supposed to be the same, the posterior probability is calculated according to GMM, and then the instrument class is determined.

识别过程，首先假设乐器先验概率相同根据高斯混合模型得出的验概率确定待识别乐器所属的种类

• The prior probability in accounting decision is usually determined by the subjective judgment of the accountant. It can be modified by using the Bayes's method in order to be close to fact.

会计决策分析中所采用的先验概率通常会计人员主观判断来确定，使用叶斯方法能够对其进行修正，使之更加符合实际。

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