Visualisation of Regression Trees
نویسنده
چکیده
The regression tree [1] has been used as a tool for exploring multivariate data sets for some time. As in multiple linear regression, the technique is applied to a data set consisting of a continuous response variable y and a set of predictor variables {x1, x2, ..., xk} which may be continuous or categorical. However, instead of modelling y as a linear function of the predictors, regression trees model y as a series of ‘if-then-else’ rules based on values of the predictors. For example consider a data set of details of house sales with the following variables
منابع مشابه
Data Mining – Generation and Visualisation of Decision Trees
A computer system presented in the paper is developed as a data mining tool – it allows to use large databases as source for the process of decision tree generation and visualisation. Designed system (DTB&V – Decision Tree Builder and Visualiser1) is able to perform data preprocessing, generation of decision trees followed by their post processing and visualisation. DTB&V was tested using a num...
متن کاملPhylogenetic Trees: An Information Visualisation Perspective
The development of powerful visualisation tools is a major challenge in bioinformatics. Phylogenetics, a field with a growing impact on a variety of life science areas, is experiencing an increasing but poorly met requirement for software supporting the advanced visualisation of phylogenetic trees. Visualisation problems within the domain are commonly experienced by its researchers, but are poo...
متن کاملTree Visualisation and Navigation Clues for Information Visualisation
Information visualisation very often requires good navigation aids on large trees, which represent the underlying abstract information. Using trees for information visualisation requires novel user interface techniques, visual clues, and navigational aids. This paper describes a visual clue for trees as well as an automatic folding (clustering) technique, both based on some mathematical concept...
متن کاملPredicting The Type of Malaria Using Classification and Regression Decision Trees
Predicting The Type of Malaria Using Classification and Regression Decision Trees Maryam Ashoori1 *, Fatemeh Hamzavi2 1School of Technical and Engineering, Higher Educational Complex of Saravan, Saravan, Iran 2School of Agriculture, Higher Educational Complex of Saravan, Saravan, Iran Abstract Background: Malaria is an infectious disease infecting 200 - 300 million people annually. Environme...
متن کاملFactors Influencing Drug Injection History among Prisoners: A Comparison between Classification and Regression Trees and Logistic Regression Analysis
Background: Due to the importance of medical studies, researchers of this field should be familiar with various types of statistical analyses to select the most appropriate method based on the characteristics of their data sets. Classification and regression trees (CARTs) can be as complementary to regression models. We compared the performance of a logistic regression model and a CART in predi...
متن کامل