Academic Journal
Feature selection based on star coordinates plots associated with Eigenvalue problems
| العنوان: | Feature selection based on star coordinates plots associated with Eigenvalue problems |
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| المؤلفون: | Sanchez, Alberto, Raya, Laura, Mohedano-Munoz, Miguel Ángel, Rubio-Sánchez, Manuel |
| سنة النشر: | 2021 |
| المجموعة: | Universidad Rey Juan Carlos, Madrid: Archivo Abierto Institucional |
| مصطلحات موضوعية: | Feature selection, Eigenvalue problems, Linear projections, Multidimensional visualization, Star coordinates, Principal component analysis, Linear discriminant analysis |
| الوصف: | This work has been supported by the Spanish Ministry of Economy (Grant RTI2018-098694-B-I00). The authors would like to thank Diego Rojo for constructive criticism of the manuscript. ; Feature selection consists of choosing a smaller number of variables to work with when analyzing high-dimensional data sets. Recently, several visualization tools, techniques, and feature relevance measures have been developed in order to help users carry out the feature selection. Some of these approaches are based on radial axes methods, where analysts perform backward feature elimination by discarding features that have a low impact on the visualizations. Similarly, in this paper, we propose a new feature relevance measure for star coordinates plots associated with the class of linear dimensionality reduction mappings defined through the solutions of eigenvalue problems, such as linear discriminant analysis or principal component analysis. We show that the approach leads to enhanced feature subsets for class separation or variance maximization in the plots for numerous data sets of the UCI repository. Lastly, in practice, the tool allows analysts to decide which features to discard by examining their relevance and by taking into account previous domain knowledge. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0178-2789 1432-2315 |
| Relation: | Sánchez, A., Raya, L., Mohedano-Munoz, M. A., & Rubio-Sánchez, M. (2021). Feature selection based on star coordinates plots associated with Eigenvalue problems. The Visual Computer, 37(2), 203-216.; https://hdl.handle.net/10115/28485 |
| DOI: | 10.1007/s00371-020-01793-w |
| الاتاحة: | https://hdl.handle.net/10115/28485 https://doi.org/10.1007/s00371-020-01793-w |
| Rights: | info:eu-repo/semantics/embargoedAccess |
| رقم الانضمام: | edsbas.47DBEE82 |
| قاعدة البيانات: | BASE |
| تدمد: | 01782789 14322315 |
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| DOI: | 10.1007/s00371-020-01793-w |