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Bosch Production Line Performance 2017/2/4hskksk
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• Result•
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RCObosch production line performance
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RCO
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• R, Python, C++
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xgboost(R) fwrite_libsvmxgboost ( )R
http://www.slideshare.net/hskksk/libsvm
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: : 2016/8/17 - 2016/11/12
: Matthews correlation coefficient
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Lx_Sy_Dz Lx_Sy_F{z-1} 7
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0: 1,176,868 (99.4%)1: 6,879 ( 0.6%)
extremely imbalanced data
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Result
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• g_votte
• tkm
• hskksk( )
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LB
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Public Leaderboard
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Private Leaderboard
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Top Ten !
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• LB(CV )
• ( ) ↑
• xgboost dart
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Feature engineering
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• 25
• 3154
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1. ID
• Forum magic feature
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xgboost importance
• = 1
• = 3
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• ID
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• ID
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Station 38
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• Station 38!!
• IDStation 38 NA
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ID
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• bitmap( 17017 )
• bitmap
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• hskksk Line2 tkm Line0
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• 3 fold 1
• MCC LB Feedback
• tkm g_votte
• LB Feedback34
Public Private• tkm submit Public
Score Private
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• submit
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• mcc
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kaggle•
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• Accuracy confusion matrix
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• think more, try less
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Enjoy Kaggle!
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