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PREDICTION
VS
CAUSALITY
JÁNOS DIVÉNYI
lead data scientist @Emarsys
PhD candidate in economics @CEU
@divenyijanos
IGNAZ
SEMMELWEIS
0
5
10
15
20
1841 1842 1843 1844 1845 1846
Mortalityrate(%)
First Clinic
Second Clinic
Pr(Y|X) à xgboost
Y: mother dies
X: temperature, midwife/doctor, etc.
Pr(Y|X) à xgboost
Y: mother dies
X: temperature, midwife/doctor, etc.
Pr(Y|X) à xgboost
Y: mother dies
X: temperature, midwife/doctor, etc.
ACCURACY
50%+
SAVIOR OF
MOTHERS
booking.com
CORRELATION DOES NOT
IMPLY CAUSATION
xkcd.com/552
PREDICTION VS CAUSALITY
PREDICTION VS CAUSALITY
PREDICTION VS CAUSALITY
qz.com
qz.com
DEEP LEARNING IS JUST
CURVE FITTING
DEEP LEARNING IS JUST
CURVE FITTING
JUDEA PEARL
Turing Award
quantamagazine.org
”DEEP
LEARNING
IS JUST
CURVE
FITTING”
Buying
probability
Buying
probability
Reaction
to incentives
Buying
probability
Reaction
to incentives
CORRELATION IS GOOD FOR PREDICTION
CORRELATION DOES NOT MEAN CAUSALITY
CAUSAL DISCOVERY IS OFTEN CUMBERSOME
CORRELATION IS GOOD FOR PREDICTION
CORRELATION DOES NOT MEAN CAUSALITY
CAUSAL DISCOVERY IS OFTEN CUMBERSOME
CORRELATION IS GOOD FOR PREDICTION
CORRELATION DOES NOT MEAN CAUSALITY
CAUSAL DISCOVERY IS OFTEN CUMBERSOME
THANKS
@divenyijanos

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Prediction versus Causality