Feature Selection Strategies for Classifying High Dimensional Astronomical Data Sets
Abstract
The amount of collected data in many scientific fields is increasing, all of them requiring a common task: extract knowledge from massive, multi parametric data sets, as rapidly and efficiently possible. This is especially true in astronomy where synoptic sky surveys are enabling new research frontiers in the time domain astronomy and posing several new object classification challenges in multi dimensional spaces; given the high number of parameters available for each object, feature selection is quickly becoming a crucial task in analyzing astronomical data sets. Using data sets extracted from the ongoing Catalina Real-Time Transient Surveys (CRTS) and the Kepler Mission we illustrate a variety of feature selection strategies used to identify the subsets that give the most information and the results achieved applying these techniques to three major astronomical problems.
Additional Information
© 2013 IEEE. Conference Date(s): 6-9 Oct. 2013. S.G.D., C.D., A.A.M., and M.J.G acknowledge a partial support from the NSF grants AST-0834235 and IIS-1118041, and the NASA grant 08-AISR08-0085. Some of the work reported here benefited from the discussions during a study and the workshops organized by the Keck Institute for Space Studies at Caltech.Additional details
- Eprint ID
- 44473
- Resolver ID
- CaltechAUTHORS:20140324-134154762
- AST-0834235
- NSF
- IIS-1118041
- NSF
- 08-AISR08-0085
- NASA
- Created
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2014-03-26Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies