XGBoost regression
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I run XGBoost regression with tree as base learner. I have over 400 variables and more than 30000000 samples. I have generated most important features and was surprised to see that one feature is dominating more than the rest, it was surprising because this variable does not explain variability of the response as they are not connected, I am trying to predict the sold item quantities, I found the most important feature , which is dominating, is the product weight which is not related to the respons at all. What do you think is going on. I run R squared between observed and predicted values and the out out was close to 0.99.
I know R square is not accurate for non linear regression model but what could be the reason of this high value although I see only one variable dominating most important features
regression xgboost
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GNJGNJ
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I run XGBoost regression with tree as base learner. I have over 400 variables and more than 30000000 samples. I have generated most important features and was surprised to see that one feature is dominating more than the rest, it was surprising because this variable does not explain variability of the response as they are not connected, I am trying to predict the sold item quantities, I found the most important feature , which is dominating, is the product weight which is not related to the respons at all. What do you think is going on. I run R squared between observed and predicted values and the out out was close to 0.99.
I know R square is not accurate for non linear regression model but what could be the reason of this high value although I see only one variable dominating most important features
regression xgboost
asked 3 mins ago
GNJGNJ
1
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I run XGBoost regression with tree as base learner. I have over 400 variables and more than 30000000 samples. I have generated most important features and was surprised to see that one feature is dominating more than the rest, it was surprising because this variable does not explain variability of the response as they are not connected, I am trying to predict the sold item quantities, I found the most important feature , which is dominating, is the product weight which is not related to the respons at all. What do you think is going on. I run R squared between observed and predicted values and the out out was close to 0.99.
I know R square is not accurate for non linear regression model but what could be the reason of this high value although I see only one variable dominating most important features
regression xgboost
asked 3 mins ago
GNJGNJ
1
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I run XGBoost regression with tree as base learner. I have over 400 variables and more than 30000000 samples. I have generated most important features and was surprised to see that one feature is dominating more than the rest, it was surprising because this variable does not explain variability of the response as they are not connected, I am trying to predict the sold item quantities, I found the most important feature , which is dominating, is the product weight which is not related to the respons at all. What do you think is going on. I run R squared between observed and predicted values and the out out was close to 0.99.
I know R square is not accurate for non linear regression model but what could be the reason of this high value although I see only one variable dominating most important features
regression xgboost
regression xgboost
asked 3 mins ago
GNJGNJ
1
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 mins ago
GNJGNJ
1
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 mins ago
GNJGNJ
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New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 3 mins ago
GNJGNJ
1
asked 3 mins ago
GNJGNJ
1
1
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
GNJ is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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