Drifting features: Detection and evaluation in the context of automatic RR Lyrae identification in the VVV

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Volume 652 (August 2021)

A&A, 652 (2021) A151

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Table A.1.

RFE results without a minimum feature limit in an attempt to identify the tile of a source.

Feature	b261–b277	b261–b278	b261–b360	b277 – b278	b277–b360	b278–b360	b206–b216	b206 – b214	b206–b261	b206–b277	b206–b278	b206–b360	b206–b396	b216–b214	b216–b261	b216–b277	b216 – b278	b216–b360	b216–b396	b214–b261	b214–b277	b214–b278	b214–b360	b214–b396	b261–b396	b360 – b396	b278–b396	b277–b396	Selected
c89_hk_color	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	⋅	27
n09_hk_color	✓	✓	✓	✓	✓	⋅	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	⋅	✓	⋅	✓	✓	✓	25
n09_c3	✓	✓	✓	✓	✓	✓	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	✓	✓	✓	✓	✓	✓	15
c89_c3	✓	✓	✓	✓	✓	✓	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	✓	✓	⋅	✓	✓	✓	14
c89_m2	✓	✓	⋅	✓	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	✓	✓	12
c89_m4	✓	✓	⋅	✓	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	✓	✓	12
c89_jh_color	✓	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	✓	✓	12
n09_m2	✓	✓	⋅	✓	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	✓	✓	12
n09_m4	✓	✓	⋅	✓	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	✓	✓	12
n09_jh_color	✓	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	⋅	✓	✓	⋅	10
c89_jk_color	✓	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	⋅	✓	✓	✓	10
n09_jk_color	✓	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	⋅	⋅	✓	✓	✓	9
Eta_e	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	⋅	⋅	✓	✓	✓	8
MaxSlope	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	✓	⋅	✓	✓	✓	6
Mean	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	✓	6
Psi_eta	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	✓	5
MedianBRP	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	✓	5
PercentAmplitude	✓	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
PercentDifferenceFluxPercentile	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
ppmb	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
Rcs	✓	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
Std	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
FluxPercentileRatioMid65	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	5
Q31	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	4
Autocor_length	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	4
LinearTrend	⋅	✓	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	4
Amplitude	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	4
Freq1_harmonics_amplitude_1	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	4
Psi_CS	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
Beyond1Std	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
FluxPercentileRatioMid35	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
MedianAbsDev	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
SmallKurtosis	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
Skew	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	3
Freq2_harmonics_amplitude_0	⋅	✓	⋅	✓	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	3
Freq2_harmonics_amplitude_1	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	2
FluxPercentileRatioMid80	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	2
Freq1_harmonics_amplitude_2	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	2
Freq1_harmonics_rel_phase_1	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	2
Gskew	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	✓	2
Freq3_harmonics_amplitude_1	⋅	✓	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	2
Freq3_harmonics_amplitude_0	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	2
PeriodLS	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq1_harmonics_rel_phase_2	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
FluxPercentileRatioMid50	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq3_harmonics_amplitude_2	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	1
Freq1_harmonics_amplitude_0	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Period_fit	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq2_harmonics_rel_phase_3	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	1
Freq3_harmonics_amplitude_3	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq1_harmonics_rel_phase_3	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	1
Freq3_harmonics_rel_phase_1	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq2_harmonics_amplitude_3	⋅	⋅	⋅	⋅	⋅	⋅	✓	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	1
Freq2_harmonics_rel_phase_2	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
PairSlopeTrend	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Freq2_harmonics_rel_phase_1	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Freq2_harmonics_amplitude_2	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Freq3_harmonics_rel_phase_3	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
FluxPercentileRatioMid20	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Con	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Freq3_harmonics_rel_phase_2	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0
Freq1_harmonics_amplitude_3	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅	0

Notes. The rows contain the name of the features ordered from highest to lowest by the frequency with which they are selected, the columns are the datasets, and a check mark indicates that a dataset selected a given feature.

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