I understand that the likelihood is calculated/estimated by looking at the number of instances where a certain feature and class occur together divided by the total instances of that class. However, I do not understand the denominator of the following function:

enter image description here

Can anyone explain what the denominator does here (possibly with a numerical example)?

I think this is also the key for me to understand the following equation (again the denominator) for smoothing:

enter image description here

Thank you in advance!


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.