scholarly journals Hierarchical Classification of Web Documents by Stratified Discriminant Analysis

2012 ◽  
pp. 94-108 ◽  
Author(s):  
Juan Carlos Gomez ◽  
Marie-Francine Moens
Keyword(s):  
Discriminant Analysis ◽  
Hierarchical Classification ◽  
Web Documents

An alternative classification method for northern Wisconsin lakes

1999 ◽  
Vol 56 (4) ◽  
pp. 661-669 ◽  
Author(s):  
Edward E Emmons ◽  
Martin J Jennings ◽  
Clayton Edwards
Keyword(s):  
Discriminant Analysis ◽  
Model Building ◽  
Classification Tree ◽  
Hierarchical Classification ◽  
Original Data ◽  
Validation Data ◽  
Data Set ◽  
Alternative Approaches ◽  
Decision Tree Method

Wisconsin has nearly 15 000 lakes with great variation in limnology, morphometry, and origin. Classification of lakes into groups is a continuing goal. This study examines two alternative approaches to lake classification, one common and the other somewhat novel. Both approaches used lake morphometry and limnological variables and were compared for ability to form groups and assign lakes to groups with a high probability of correct classification. The first approach used nonhierarchical cluster analysis to form lake groups and discriminant analysis to put lakes into these groups. The second approach formed lake groups by iterative dichotomous splitting of the sampling space into smaller and smaller subspaces. Each binary split was done using nonhierarchical cluster analyses on a subset of the original variables. This iterative splitting resulted in a hierarchical classification tree with reduced dimensionality in comparison with the original data set. At each branch, multiple logistic regression was used to place lakes into nodes of the tree. Validation of both approaches was performed with a resubstitution analysis of the model building data set as well as a separate validation data set. The decision tree method yielded significantly lower rates of misclassification and was more easily interpreted than the discriminant analysis approach.

Easy classification of traditional Minas cheeses using artificial neural networks and discriminant analysis

2017 ◽  
Vol 70 (4) ◽  
pp. 492-498 ◽  
Author(s):  
Leandro S Santos ◽  
Roberta M D Cardozo ◽  
Natália Moreiria Nunes ◽  
Andréia B Inácio ◽  
Ana Clarissa dos S Pires ◽  
...  
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Discriminant Analysis ◽  
Artificial Neural

scholarly journals A Medical Cloud-Based Platform for Respiration Rate Measurement and Hierarchical Classification of Breath Disorders

Sensors ◽  
2014 ◽  
Vol 14 (6) ◽  
pp. 11204-11224 ◽  
Author(s):  
Atena Fekr ◽  
Majid Janidarmian ◽  
Katarzyna Radecka ◽  
Zeljko Zilic
Keyword(s):  
Respiration Rate ◽  
Hierarchical Classification ◽  
Rate Measurement ◽  
Medical Cloud ◽  
Respiration Rate Measurement
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