摘要:决策树是对未知数据进行分类预测的一种方法。
Absrtact: the decision tree is a kind of method to classify to predict for the unknown data.
在生物统计以及数据挖掘中,分类预测是最基本的任务之一。
Classification is one of the most basic tasks during the biological statistics and data mining.
因此研究煤与瓦斯突出区域分类预测模型具有重大现实意义。
So search on coal and gas outburst prediction model for classification of great practical significance.
决策树是一个类似于流程图的树结构,主要用途是提取分类规则,进行分类预测。
Decision tree, as a flow chart, is structure of a tree, which is mostly used in finding classification rules and prediction of classification.
特别是分类关联规则既能用于概念描述又能用于分类预测与决策,在数据挖掘中发挥重要作用。
In particular, the class association rule (CAR), which can be used not only for concept description but also for class prediction and decision-making, has an important role in data mining.
针对自动视频分类工作中分类预测精度低的问题,提出了一种集成数据挖掘技术的自动视频分类方法。
This paper addresses the problem that automatic videoclassification has lower classification precision. An automatic video classification approach of integrating data mining is proposed.
大规模数据集的分类是数据挖掘中的一个重要课题,而分类预测技术在税收领域的应用有着很好的前景。
Classification of large database is an important data Ming problem, and the application of classification and prediction technologies on tax collection has a bright prospect.
现有的分类预测的方法有许多种,常见的有决策树算法(C4.5)、贝叶斯分类算法、BP算法与支持向量机等。
There are many classification methods to forecast such as decision tree algorithm (C4.5), Bayes algorithm, BP algorithm and SVM.
该算法主要包括三个特色技术:基于纹线局部走向的分类预测、体现指纹微观纹理的扩展上下文以及基于成像仪器的分类熵编码器概率模型初始化。
There are mainly three distinguishing features in our proposed algorithm:local direction-based prediction, extended context for micro texture and histogram initialization based on imaging apparatus.
通过对决策树算法的深入分析,我们围绕着C4.5决策树生成算法建立了一个分类预测系统并实现了与劳动力市场信息管理系统(LMIS)的集成。
With the thorough analysis on the algorithm of decision tree induction, we established a classification and prediction system based on C4.5 and accomplished the integration with the LMIS system.
首先,对测试集进行初分类,以尽可能多地保留多数类的有用信息;其次,对于被初分类预测为少数类的样本进行再次分类,以有效地提高少数类的分类性能。
Firstly, preliminary classification was made on the test data in order to save the useful information of the majority class as much as possible.
这个模型可用于任何未知的数据实例,来预测这个未知数据实例是否通过只询问两个简单问题就能理解分类树。
This model can be used for any unknown data instance, and you are able to predict whether this unknown data instance will learn classification trees by asking them only two simple questions.
第二种技术是分类(即分类树或决策树),用来创建一个实际的分支树来预测某个未知数据点的输出值。
The second was classification (also known as classification tree or decision tree), which can be used to create an actual branching tree to predict the output value of an unknown data point.
如果您的消息网络非常小,您可能想知道如何预测从现在开始的一年内将需要哪些分类服务。
If your messaging network is small, you might be wondering how to anticipate which classes of service you will need a year from now.
图12:资产所需要的命名约定和分类是用来让存储库专业人员增加一致性,从而增加资产组织的可预测性。
Figure 12: Naming conventions and classification required of assets are intended for the repository practitioners to increase consistency and thereby predictability of asset organization.
新的数据没有分类别(这里是指还没有做过心脏病检查),评价过程根据挖掘模型将一个预测赋给每个新的记录。
The new data has no classification (in this case, no checks on heart disease have been made) and the scoring process assigns a prediction to each new record according to the mining model.
帕亚克说:“为了预测2011年的热词,我们分析了所监测的分类,然后从多种全球趋势的代表词汇中做出选择。”
"To project possible top words for 2011, we analyzed the categories that we monitor and then chose words from each representative of various world trends," Payack said.
文中评述了森林可燃物分类、可燃物模型及其预测研究的现状,并简述了我国森林可燃物研究存在的问题与发展趋势。
This paper discussed the current status of the study on classification, modeling and prediction of forest fuel, and presented briefly the weakness and development tendency of the study on forest fuel.
这样的预测令人担忧,这是在评价近地天体(NEO)撞击危险程度的 “托里诺分类表”(THETORINOIMPACT HAZARDSCALE)中第一次有小行星进入“4级”(译注:该分类表最高为10级)。
This estimate was alarming; it was the first time an asteroid had been promoted to "Level 4" on the Torino Scale -- a near-Earth object (NEO) impact hazard categorization method.
用SETI@home找寻异形;用climateprediction.net(气候预测网站)模拟气候;用星系园给星系分类
Searching for aliens with SETI@home; modelling the climate with climateprediction.net; sorting galaxies with Galaxy Zoo
分类的标题相对较短并且可预测。
Use when the category titles are relatively short and predictable.
至今已经提出了决策树的很多算法,通过分析已知的分类信息得到一个预测模型。
So far, there are many algorithms have been given and we can gain a prediction model by analyzed known catalog information.
研究结果:运用新建基于产业的产业用地分类,预测了未来中国产业用地规划结构。
The future land use structure was forecasted on the basis of industrial land classification.
然后基于支持向量机进行分类建模和预测过程。
Then, we implement classification modeling and forecast based on SVM.
文章针对蛋白质二级结构预测这一复杂非线性模式分类问题,提出了基于径向基函数的预测方法。
Aiming at solving the complicated non-linear pattern classification problem of protein secondary structure prediction, a new method based on radial basis function is proposed.
监督式分类器使用标签训练语料库来构建模型,预测基于特定要素输入的所输入的标签。
Supervised classifiers use labeled training corpora to build models that predict the label of an input based on specific features of that input.
人工神经网络与气体传感器相结合,用于识别、分类、诊断和预测,将进一步提高气体检测系统的智能水平。
Artificial neural network together with gas sensors, which is applied to identification, classification, diagnosis and prediction, will further improve the intelligence of gas detection system.
然后基于支持向量机进行分类建模和预测。
Then, we realize classification modeling and forecasting test based on SVM.
在实际预测时,要对实时数据进行判别分类,选择对应的模型进行预测输出。
In actual forecasting, we must classify real-time data, choice the corresponding model to predict network output.
研究动机:胃食道皮瓣可区分为四级。而这种分类系统,可以预测胃食道逆流疾病的发生率。
Objectives: Gastroesophageal flap valve can be divided into a four-grade system and this system can well predict the prevalence of gastroesophageal reflux disease.
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