29 July 2015 to 6 August 2015
World Forum
Europe/Amsterdam timezone

A data mining approach to recognizing source classes for unassociated gamma-ray sources

30 Jul 2015, 15:30
1h
Mississippi Foyer (World Forum)

Mississippi Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 80
Poster contribution GA-EX Poster 1 GA

Speaker

Prof. Kenji Yoshida (Shibaura Institute of Technology)

Description

The Fermi-LAT 3rd source catalog (3FGL) provides spatial, spectral, and temporal properties for 3033 gamma-ray sources. While 2041 sources in the 3FGL are associated with AGNs (58% of the total), pulsars (5%) and the other classes (4%), 992 sources (33%) remain as unassociated sources. In recognizing source classes for unassociated gamma-ray sources of the Fermi-LAT source catalogs, various data mining techniques have been applied, e.g. artificial neural network and classification tree. As a robust alternative to these data mining techniques, we present the Mahalanobis Taguchi (MT) method to recognize source classes. The MT method creates a multidimensional Mahalanobis space from characteristic variables of a normal class (e.g. AGN) to identify sources of the normal class from those of the other classes with Mahalanobis distances. In this paper, we present the results of the source classification for the unassociated gamma-ray sources in 3FGL by applying the MT method.
Registration number following "ICRC2015-I/" 523
Collaboration -- not specified --

Primary author

Prof. Kenji Yoshida (Shibaura Institute of Technology)

Presentation materials

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