Search found 7 matches

by manman
Tue Jun 25, 2019 9:49 am
Forum: GeNIe
Topic: Most determinant nodes
Replies: 4
Views: 180

Re: Most determinant nodes

I think the suggestions of sensitivity analysis is the correct choice.
by manman
Tue Jun 25, 2019 9:47 am
Forum: GeNIe
Topic: unbalanced data and parameter learning
Replies: 2
Views: 108

Re: unbalanced data and parameter learning

Hey Marek, Thanks a lot for your suggestions! About the " prior probabilities of classes will not reflect the frequencies in the test data", I think that is a really good point to consider. The prior probability of selected class (two state) does changed after balancing, but the joint distribution o...
by manman
Tue Jun 25, 2019 9:28 am
Forum: GeNIe
Topic: penalize parameter for accuracy
Replies: 4
Views: 181

Re: penalize parameter for accuracy

Hi Marek, thanks for your suggestions!
I will check the eneral machine learning literature on unbalanced data sets.
by manman
Sat Jun 22, 2019 2:39 pm
Forum: GeNIe
Topic: Most determinant nodes
Replies: 4
Views: 180

Re: Most determinant nodes

What about trying to use the strength of influence?
by manman
Sat Jun 22, 2019 10:04 am
Forum: GeNIe
Topic: unbalanced data and parameter learning
Replies: 2
Views: 108

unbalanced data and parameter learning

Hello! I am looking for suggestions of dealing with unbalanced data. When I conducting the validation, if the selected class has two variables,state 1 and state 0, the accuracy of each state is 0.33 and 0.90, due to the unbalanced dataset (much more state 0 than state The model shows the total accur...
by manman
Tue Jun 18, 2019 4:42 pm
Forum: GeNIe
Topic: penalize parameter for accuracy
Replies: 4
Views: 181

Re: penalize parameter for accuracy

Hi Marek, thanks for your swift reply! I learned how to changed the threshold now. May I ask more questions? 1. When doing the validation, if the selected class has two variables,state 1 and state 0, the accuracy of each state is 0.33 and 0.90, due to the unbalanced dataset (much more state 0 than s...
by manman
Tue Jun 18, 2019 10:07 am
Forum: GeNIe
Topic: penalize parameter for accuracy
Replies: 4
Views: 181

penalize parameter for accuracy

Hello, I am new to GeNIe. I am writing to ask the method to change the penalize parameter for the prediction accuracy. e.g. the predict outcome has two state, when building the model or making validation, the accuracy is the total prediction accuracy of the two state(usually one state is low and one...