1 research outputs found
Feature Selection and Feature Extraction in Pattern Analysis: A Literature Review
Pattern analysis often requires a pre-processing stage for extracting or
selecting features in order to help the classification, prediction, or
clustering stage discriminate or represent the data in a better way. The reason
for this requirement is that the raw data are complex and difficult to process
without extracting or selecting appropriate features beforehand. This paper
reviews theory and motivation of different common methods of feature selection
and extraction and introduces some of their applications. Some numerical
implementations are also shown for these methods. Finally, the methods in
feature selection and extraction are compared.Comment: 14 pages, 1 figure, 2 tables, survey (literature review) pape