决策树(Decision Tree)是数据挖掘中一种最基本的分类与回归方法,与其他的算法相比,决策树的原理浅显易懂,计算复杂度较小,而且输出结果易于理解,因此在实际中有着广泛的应用。 一个简单的决策树示例(图片来源:机器学习 (豆瓣)): 决策树可以被认为是一种'if-then'规则的集合。它由节点和有向边组成,内部节点代表...
Data Mining - Decision Tree (DT) Algorithm Decision tree A decision tree is pruned to get (perhaps) a tree that generalize better to independent test data. (We may get a decision tree that might perform worse on the training data but generalization is the goal). See Information gain and...
It is expected, that integration of an enterprise knowledge base in to data mining techniques will improve the data analysis process. The detailed analysis of the modified decision tree algorithm C4.5, integrated with domain knowledge is described. The alignment of business domain attributes used in...
CHAPTER 8 Decision Tree Algorithms Decision trees provide a means to obtain product-specific forecasting models in the form of rules that are easy to implement. These rules have an if-then … - Selection from Data Mining Models [Book]
How the Algorithm WorksThe Microsoft Decision Trees algorithm builds a data mining model by creating a series of splits in the tree. These splits are represented as nodes. The algorithm adds a node to the model every time that an input column is found to be significantly correlated with the...
The Microsoft Decision Trees algorithm is fast and scalable, and has been designed to be easily parallelized, meaning that all processors work together to build a single, consistent model. The combination of these characteristics makes the decision-tree classifier an ideal tool for data mining. ...
A Decision Tree Algorithm for Uncertain DataClassificationDecision treePredictionUncertain dataClassification is a classical problem in machine learning and data mining. Given a set of training data tuples, each having a class label and being represented by a feature vector, the task is to ...
For the last five years, data mining has drawn much attention by researchers and practitioners because of its many applicable domains. This article presents an adaptive decision tree algorithm for dynamically reasoning machine failure cause out of real-time, large-scale machine status database. Among...
Decision tree (decision tree), also known as decision tree is a kind of information theory-based, decision tree data structure based on this classification algorithm. Categorized the decision tree in the field of data mining has been studied for many years, and had a lot of algorithms, such ...
C4.5-based implementation of the Decision Tree algorithm Written by hanson(hangzhong.yu@gmail.com) at date 11/19/2011. Linkedin profile: http://cn.linkedin.com/in/hangzhongyu compile command : gcc decisiontree.c -lm -o decisiontree then: ./decisiontree -r trainning.txt -t testing.txt -...